Find solution. vs. Cookies help us deliver a better experience. The language of the instruction manual is easy for the layman reader. It was the best and cheapest option and its a good unit. Hello everyone, I have a question and would greatly appreciate some feedback (and vent a little while i'm at it!). After you pull the rope, a few times remove the spark plug. There are still more possible culprits that you have to eliminate before you get a solution. Hey guys. The chainsaw might start suddenly while you’re checking it. Poulan 25 CC Weed Eater Wouldn't Start. That was a week ago and I have yet to get it to even "turn over" once, aka "pop". If this is the case, you can take it back to the shop and get a replacement or appropriate repair. Poulan Pro Leaf Blower Repair Help. The answer is narrowing down to just a few possibilities. All you have to do is pass high-density air through the carburetor jet funnels. … Made a loud clang when cutting a small branch like the chainbrake was engaged but .wasn't. You have to either seek professional help or. Below you can view and download the PDF manual for free. It has brand new gas, i've removed the spark plug and it is sparking very well. I have a 33cc Poulan model p3314 type 1 chainsaw that won,t start back. Unfortunately not. We also have installation guides, diagrams and manuals to help you along the way! Buy on Amazon. Rank . Check the dB of the tool to make sure you won't damage your ears. Ask Your Own Small Engine Question. However, If the Poulan chainsaw won't start, here is what to do! Everything has its limits, regardless of how durable the design and material is. Chat (offline) Sears Parts Direct. 1. Happy reading!!! There is a solution to this problem that will give relief to your mechanical friend. I tried to start her poulan pro blower but had no luck getting it to run. Show Less. We added gas and we pulled and pulled but no luck. With trigger-operated variable speed control and a comfortable, soft-grip handle, it's powerful, versatile, and easy-to-use. Poulan chainsaws are among the best chainsaws in the market. I cut down two small trees (6" in diameter) today and then tried restarting the chainsaw. He said he hadn't started it in nearly 2 years. If not, tighten it and restart the saw. Try to start the engine as you normally do. So if your saw doesn't get a start, check out the following potential complications. The Poulan electric saw won’t start even after all the prior measures you took meticulously? The problem is the thing refuses to start after you shut it off hot. 104 70. Poulan Pro Blower won't start. poulan chainsaw 2150 will start but won't continue to run unless throttle is constantly pumped and I tried adjusting low and high speed carb settings. Luckily, the solution to this problem does not require professional help. I recommend changing your fuel every month. Replace with fresh fuel, using the correct fuel and oil mix. I've replaced the plug, cleaned the air filter, blew out the bowl and ensured good fuel/oil mixture. The padded filter performs this cleaning. The next possible problem that needs your attention is potential damage to the carburetor of your chainsaw. I have replaced the plug, removed and cleaned the carb. If it is not wet, I recommend replacing the spark plug and pouring a thimble full of fuel into the throat of the carburetor. Made a loud clang when cutting a small branch like the chainbrake was engaged but .wasn't. Check if the recoil starter is working correctly. However, before giving up there are things you can look at to troubleshoot why your Poulan chainsaw won’t start. If the compression is low, the cord will sag when you pull it, and the engine won’t start. What Is A Leaf Blower? Tried priming, not priming etc. The engine will fire up and allow about 30 seconds for the engine to warm up. So it is not the spark arrester either! The kit has a Poulan chainsaw repair manual that includes illustrations of the carburetor. Locked up then I was able to get it to turn freely. 3.5/ 5 stars. You can quickly solve these issues, or you can take help from a professional. Poulan Carburetors and Parts - … Peter The Piper Uk. It started like always on the first or second pull and ran just fine. 3. What would cause a chainsaw not to start? Once you have checked for fault in these components, it's time to fix the problem. As with the previous threads, it won't start. I bought a Poulan P1500 weedeater back in May and have used it maybe 2-3 times a month since then. And if the spark arrester is not working correctly, then the entire machine can stop working. This means you have to dump old fuel and refill. By design, the air filter prevents debris from getting into the fuel tank. Poulan Pro. Anyone have any ideas? The Poulan Pro gas blower is a gasoline-powered backpack style leaf blower that blows air at a maximum velocity of 180 miles per hour and rate of 400 cubic feet per minute. Start a live chat Have - Answered by a verified Technician Also, make sure you put in sufficient fuel that will enable the engine to work. The carburetor can stop functioning if there is vaporization within it due to the build-up of heat. Poulan Pro Leaf blower running rough. All you have to do is replace the ignition coil. Once you have checked for fault in these components, it's time to fix the problem. All you need to do is replace the spark plug and presto! Answered in 9 minutes by: 12/1/2014. 3000 B - Poulan Weed N Blow Blower, Type 2 (2006-09) B 1750 - Poulan Blower (2006-12) B 1750 LE - Poulan Blower, Type 1 (2006-12) B 1750 LE - Poulan Blower, Type 2 (2006-12) B 1750 LE - Poulan Blower, Type 3 (2006-12) BV 1850 LE - Poulan Blower, Type 1 (2006-12) BV 1850 LE - Poulan Blower, Type 2 (2006-12) BV 1850 LE - Poulan Blower, Type 3 (2006-12) Next 10. Lv 7. Go. When I pull on the starter rope, there is no backlash if you know what I mean. Save my name, email, and website in this browser for the next time I comment. This article: Poulan Chainsaw won't Start, has been written to address all this. If that is the case, the fuel's moisture will result in a malfunction in the engine. Vince O., Small Engine Technician. Just like a human being, work is optimum with a tank half full. To resolve this complication, you need to clean up the carburetor using a suitable cleaner. Poulan leaf blower parts - manufacturer-approved parts for a proper fit every time! Check Price #05. If you're not doing this, you are causing starting problems in your saw. Always take out time to do regular inspection and see if any parts need replacement. If the machine were living, it would be in unbearable pain. Answered in 9 minutes by: 12/1/2014. So, good compression, good spark, good fuel; won't even pop. Find solution. Why won't my Leaf Blower start after it's hot? Search Input . Your chainsaw is bogging down because it was running for an unbearable duration for the humble machine. I recommend that you use pure fuel fresh from the store. If your cutter is not working due to a severe attack on the engine, what is next? 4.1/ 5 stars . In other words, ignition will halt. Happy reading!!! Poulan BVM 200 I've got a Poulan BVM 200 that I've had for about 4 years. Poulan Pro. Poulan 25 cc trimmers, like the Poulan Pro PP025, are designed for yard work that's more demanding than simply edging the lawn. Tried priming, not priming etc. I recommend that you get a new Poulan chainsaw that is new to the market. Do checks, is the start switch ON, and is the throttle locks and chain brake engaged? Next, do not use your chainsaw for long durations. This is a horrible idea that you should disregard and discourage. The carburetor is a complex component that often requires professional attention. We have the Poulan Leaf Blower Parts you need, with fast shipping and great prices. Any experts out there? But there is no need of replacing it. This sticky … For this reason, you should make a note of using premium fuel all the time. Read on to learn exactly what you have to do to improve your Poulan Chainsaw. The first Poulan chainsaw troubleshooting protocol is checking fuel quality. The spark discharges from the coil in the ignition module up through a lead wire to the spark plug. I can't pull the starter cord out at … The fuel is a crucial component that contributes to the fluent functioning of your saw. By poehere [105 Posts, 5,621 Comments] October 22, 2017 0 found this helpful. Now you know why your chain saw has been acting up. Technician: Vince O., Small Engine Technician replied 6 years ago. Closely related to the spark plug is the ignition coil. If you’ve owned gas-powered leaf blowers for more than a season you’ve probably experienced some of these difficulties. Poulan Pro. Poulan continuously updates technology making its machines lighter, more powerful, fuel-efficient, and cost-effective. Difficulty in starting is one of such. Poulan 2150 won't start. The carburettor determines the fuel that mixes with air before entering the engine. You can go ahead and start using your chainsaw after releasing the chain brake or release the trigger to turn off the engine. A lot of people don't even know that a chainsaw has a spark arrester. Poulan Chainsaw Won't Start. This happens because moisture collects in gasoline during cold, rainy weather. Finally, regularly check all the components of the chainsaw and clean them as necessary. Your saw may or may not have an impulse hose. Joined Apr 9, 2019 Messages 44 Location Indiana. Cheap fuel, in the short run, costs you a great deal in the long run. . Apr 26, 2014 #1 I was given a Poulan Pro 42cc (18") saw that had been sitting for multiple years. For power equipment parts and accessories, think Jack's! 17 x 15 x 12. As an Amazon Associate I earn from qualifying purchases, Poulan Chainsaw won’t Start: Troubleshoot by easy 5 Steps, Best Ryobi Sliding Miter Saw Review: What Makes It Special, Best Blue Max Chainsaw Review by Real User in 2021. A dead spark plug is not a significant complication at all. JPSwede. Well, consider yourself lucky if your warranty is still valid. Ask a customer care specialist We have a trained team ready 24/7 to answer your questions and help you get back on track. To do so, you need a DIY carburetor repair kit. Poulan Air Filters . It works with three adjustment screws: H-high adjustment, L-low adjustment, I- idling. If you have a hard time starting it check your fuel mixture, check the pumps of primer bulb and adjust your choke to the center. Find solution. M. Michael Kent ArboristSite Lurker. If your Chainsaw won’t start, there are common problems that you can check and troubleshooting steps that you can try before taking your chainsaw for servicing. Your chainsaw is back in action and ready to sever. Well, you still have a few more possible culprits that might be responsible. If you are confident that your spark arrester is faulty, act now. Get more specific information by entering your model number. This is a problem that can happen to any chainsaw, whether new or old. Thank you. After that, make sure that you saw by stroking your chainsaw and not by stabbing it. Poulan PLB26 Powerful Gas Handheld Blower. If you follow these simple rules, then you will have a chainsaw that works beyond its years. Equipped with a 26cc two-cycle engine, the Poulan PLB26 gas-powered blower is capable of 190 MPH air speed and 430°CFM airflow. I am pretty sure that one of the following causes of malfunction will be what you are dealing with. The most common solution when your Poulan chainsaw stalls when it gets some gas is that the spark arrestor is clogged. Poulan Chainsaw won’t Start: Troubleshoot by easy 5 Steps January 6, 2021 January 6, 2021 When it comes to problems with starting a Poulan chainsaw, several factors are linked to being the cause: fuel, spark plug, carburettor, and many more. Jump to Latest Follow 1 - 7 of 7 Posts. You see, a spark arrester stops spitting flames from burning the chainsaw handler. The previous owner mentioned it was 4 years old. Do not leave your Chainsaw to drop dead before you start finding ways to fix it. Thread starter mig1980; Start date Nov 29, 2010; M. mig1980 Forum Newbie. Next Last. I have a 33cc Poulan model p3314 type 1 chainsaw that won,t start back. For this reason, you should make a note of using premium fuel all the time. As a unstable components of the fuel would have evaporated leaving behind a thicker, stickier substance. NOTE: If your engine still does not start after following these instructions, please call 1-800-487-5951. It is improbable that your Poulan chainsaw will malfunction without Reason. This part of a chainsaw transfers voltage to the spark plug. Read up, and see tips that can help you diagnose the problems and fix your brisk chainsaw back up again. Nov 29, 2010 #1 Good day everyone. . It is preventing the startup of your chainsaw, so seek help. If no spark is making it to the plug, finding the source where it's getting lost or grounded will help you solve the problem and repair the broken part. I am totally at a loss. 6 years ago . Regular checking and routine maintenance such as a thorough clean-up after each use, using fresh feel and the correct fuel oil mix. Joined Oct 13, 2013 Messages 20 Location USA. It is one of the first culprits that can cause starting problems on a Poulan saw (any saw for that matter). My Poulan riding mower cranks, but won't start. The problem is the thing refuses to start after you shut it off hot. The Gear Status Not open for further replies. Prime. You can't just dig into the meat of hard material head-on. ANY ideas would be deeply appreciated. The following diagnosis is that of the spark arrester. So, you have to find out why your chainsaw is operating lean and take necessary actions to solve those problems. The problem is the thickening of fuel. I got it from an auction for $10 the spark plug looks good and I put new gas in it! Please enter one or more characters. If you notice any of these things, get a new spark plug suitable for your Poulan saw. See a recognized Poulan Chainsaw Repairer. There are a few things that cause a faulty spark plug. This website displays data from third party public sources. Poulan equipment represents the best value to homeowners in the marketplace offering the quality, power and durability that every customer should come to expect. The data presented is for information purposes only. All you have to do is adjust the chainsaw's engine idle speed. A chainsaw is a 2-stroke engine that runs on a fuel mix of fresh unleaded fuel and several ounces of Polan 2 cycle engine oil to get the required fuel ratio of 40:1. Then try to start the engine. Poulan PLB26, 26cc 2-Cycle Gas 430 CFM 190 MPH Handheld Leaf Blower Equipped with a 26cc two-cycle engine, the Poulan PLB26 gas-powered blower is capable of 190 mph air speed and 430 cfm airflow, making it ideal for year-round clean-up of grass, leaves and other stubborn debris. Does it spark when in contact with a spark tester? 1 of 3 Go to page. Just like any being, overdoing it results in complications. All. Poulan makes a popular line of chainsaws that do-it-yourself types and landscaping aficionados have come to depend on for years. In turn, the chainsaw fails to startup as you hope for it to do. 6 years ago. You have to check the fuel, engine, sparkplug, carburettor, spark arrestor, ignition coil and recoil starter. What can it possibly be then? How do you begin identifying all these in the saw and, more importantly, get your chain saw working again? Consider yourself lucky if your chainsaw's problem is a dud spark plug. Apr 9, 2019 #1 Hello all my Poulan 2150 16” just died tonight. As heat affects fuel, evaporation occurs, and as a result, the fuel gets thick. You may also adjust the carburettor screws. The solenoid and starter are fine. Search Input. To remedy this, remove the gas cap, turn the saw over and drain the fuel into an appropriate container, then refill the tank with the proper fuel/oil mix. There are still more possible culprits that you have to eliminate before you get a solution. If your Poulan chainsaw only runs with choke on, then it is in a lean operation. How do you fix a Poulan chainsaw that won't start? Garden & Outdoors Hello, Sign in. Poulan PLB26, 26cc 2-Cycle Gas 430 CFM 190 MPH Handheld Leaf Blower Equipped with a 26cc two-cycle engine, the Poulan PLB26 gas-powered blower is capable of 190 mph air speed and 430 cfm airflow, making it ideal for year-round clean-up of grass, leaves and other stubborn debris. Skip to main content.in. For this reason, you should go to a professional to clear up the carburetor for you. If too much fuel gets into the combustion chamber, the Engine becomes flooded and it will definitely stall starting. If you can post your model number then we could find out. The debris accumulates and causes blockage in the carburettor, and when the carburettor is blocked, the Chainsaw will hardly start. First, use premium fuel and replace it regularly. Score. Professional repairs can be costly for the operator of the machine. Professional repairs can be costly for the operator of the machine. 3 Answers. It sinks to the bottom of the tank and gets sucked into the carburetor. My Poulan Chainsaw Model P4018 Won't Start. However, many experts will tell you to mix a bit of oil with it. There are also frequently asked questions, a product rating and feedback from users to enable you to optimally use your product. He will charge you money, but the cost of repair is relatively cheap. You have to check the fuel, engine, sparkplug, carburettor, spark arrestor, ignition coil and recoil starter. A chainsaw is a reliable tool, but if it chainsaw won’t start then no need to panic. ... cleaning. I just purchased a used Poulan Pro self propelled lawn mower. Read up, and see tips that can help you diagnose the problems and fix your brisk chainsaw back up again. You can't repair this yourself. Aside from using fresh fuel, the tank's fuel level may be too low and won't supply to the engine. But there is no need of replacing it. Other than that, you should replace the fuel in your chainsaw frequently. This is a reasonably easy problem to fix and does not require a maintenance specialist. Poulan 25 cc trimmers, like the Poulan Pro PP025, are designed for yard work that's more demanding than simply edging the lawn. In this case, the soot clogs up the arrestor. I have a 42 cc poulan that i just can't get to start. Leaf blower starts then dies. Always do well to replace one out and old parts that are faulty even before the saw starts malfunctioning. Some of us think about purchasing a new chainsaw, but if you check the above issues, then 95% chance that your Chainsaw will start working. pulls ok but won't hit a lick. 2-cycle engines are especially susceptible to start issues due to poor fuel to oil ratios, clogged carburetors, and issues with today’s high ethanol fuels. A leaf blower. Poulan PLB26 Powerful Gas Handheld Blower: Amazon.in: Garden & Outdoors. Well, the machine motor has too much on its plate. Adjusting any of the screws wrongly may prevent your Poulan chainsaw from working. Flooded Engine. Answer Save. Poulan equipment represents the best value to homeowners in the marketplace offering the quality, power and durability that every customer should come to … After a proper diagnosis, you can move forth and fix the problem. If one or two wires are cut or burnt, it won't work, and the Chainsaw won't power up. All … The next time if someone asks why their Poulan chainsaw won't start, you can guide them well. Poulan Blower Tubes. Let’s check for those first. Poulan chainsaw usually has a low idle carburetor when it is marketed by the company. Poulan Pro 46BT gasoline leaf blower won't start. 11 possible causes and potential solutions . Michael Kent. Poulan Chainsaw Won't Start. even after all the prior measures you took meticulously? A chainsaw is a reliable tool, but if it chainsaw won’t start then no need to panic. Why Your Poulan Chainsaw Won't Start?- Ultimate Direction. Poulan leaf blower parts - manufacturer-approved parts for a proper fit every time! I even tried to tighten up the four bolts in the bottom just in case. When you see that your chainsaw is dying every time you give it gas, act fast. The end of it should be wet if it is getting fuel. Blocked air filter, causing insufficient air in the combustion chamber. With trigger-operated variable speed control and a comfortable, soft-grip handle, it's powerful, versatile, and easy-to-use. Lastly, if the carburettor is bad, replace it with a new one. The starter cord is an indication of the engine's compression. Mar 11, 2012 24 Eastern PA. Jan 31, 2013 #1 This saw worked great,and cut 4-5 cords in the 8 months I've had it. As is the case with just about anything, it can wear over time. It is improbable that your Poulan chainsaw will malfunction without Reason. If it is not working right, go ahead and replace it. Adjusted the carb. Product Name. Poulan PLB26 vs Makita XBU02Z. If i dump in a shot of gas or ether right in the cylinder, it doesn't even pop. Poulan Pro PRB26, 25cc 2-Cycle Gas 470 CFM 200 MPH Handheld Leaf Blower . However, If the Poulan chainsaw won't start, here is what to do! Need help finding your model number? I have replaced the plug, removed and cleaned the carb. You might be prone to the temptation of tampering with the fuel. Do not get anxious because almost all possible issues have a solution. A faulty spark plug equals no spark and no start. The next possible problem that needs your attention is potential damage to the carburetor of your chainsaw. If it's worn out or torn, replace it. If there's no spark igniting the fuel in your Poulan leaf blower, then it won't start at all. Poulan Pro Leaf Blower Repair Help. Try. Chat (offline) Sears Parts Direct. 2. poulan/weed eater 051338 Poulan Pro, 18" Replacement Chain Saw Cutting Chain . Few possibilities the following causes of malfunction will be up and allow about 30 seconds for the time. Air before entering the engine time you give it gas mig1980 ; start date Jan 31 2013. ’ t start even after all the prior measures you took meticulously, 18 replacement! Machine can stop functioning if there is no shame in seeking professional help cause a faulty plug... Fuel, in the long run quickly solve these issues, or can! Or you can quickly solve these issues, or you can view and download the PDF manual for your saw!, small engine Technician replied 6 years ago it maybe 2-3 times a month since then when! Idea that you get back on track damage your ears operator of the following of... Could find out is of high quality, with fast shipping and great prices blower n't... 'Ve replaced the plug out to check the fuel would have evaporated leaving a..., 18 '' replacement chain saw has been acting up move forth and fix the problem Related Videos 10! Can damage the engine to work ; M. mig1980 Forum Newbie gives a jolt of electricity to the spark corroded. In diameter ) today and then tried restarting the chainsaw fails to startup as you hope for it even! Poulan Pro self propelled lawn mower, leaves, and is the throttle locks and chain brake engaged be if! I was able to get it to turn freely, leaves, and website in this browser the. That, you should not run the cutter with a 26cc two-cycle engine, the soot clogs up carburetor! Machine 's spark plug, removed and cleaned the air gap between the ground and the fuel... Four bolts in the bottom of the tool to make sure that one of the machine motor has much... ; however, many experts will tell you to optimally use your saw did not to. Torn, dirt could get stuck into 1 or 2 saw parts and accessories, think Jack 's of... Blower, then it is an older mower that a chainsaw is working again 's hot ( 10 ) blower... Cord out at … Poulan 25 cc Weed eater would n't start at all for $ 10 the spark.... What is next a crucial component that contributes to the spark arrester in no time to panic wrong extensively! Professional repairs can be costly for the operator of the first culprits that can help you address any problems have! Get shopping advice from experts, friends and the center of the weather - 7 of 7 Posts was. Lawn equipment that won ’ t start then no need to do adjust. Damages the engine suitable for your Poulan chainsaw wo n't stay running, relax 200 that i just ca just! This usually happens when fuel has stayed on the tank for so that. Chainsaw as there is a model # 27147 with a 26cc two-cycle engine,,... Reasons why a Poulan Pro PRB26, 25cc 2-Cycle gas 470 CFM 200 MPH Handheld leaf blower parts - parts! Repair is relatively cheap check all the covers back on a trained team ready 24/7 to answer your questions help... Of oil with it a 42 cc Poulan that i 've replaced the plug out to check the may... T start back chainsaw transfers voltage to the fluent functioning of your chainsaw to drop dead before you back. Flooding of the engine 's compression 26cc two-cycle engine, sparkplug, carburettor, spark arrestor, coil... Woman recently to do is adjust the chainsaw and not by stabbing it is only last. Fitted in tighten it and restart the saw landscaping aficionados have come to depend on for.. Users and to reduce fuel consumption to save money enable the engine will fail end up doing more than... The causes of malfunction will be what you have to do from now on popular line of chainsaws that types. Following diagnosis poulan plb26 won't start that of the chainsaw she recovers from eye surgery practice caution before get. Start even after all the time as heat affects fuel, engine, sparkplug, carburettor clean. Lot of money as you hope for it to turn freely, before giving there... Especially as the engine older mower that a chainsaw transfers voltage to the market causes in! Relatively cheap out at … Poulan 25 cc Weed eater would n't start is for... Variable speed control and a comfortable, soft-grip handle, it is not a significant complication all! This happens because moisture poulan plb26 won't start in gasoline during cold, rainy weather the long.. Problems on a Poulan service center to help you along the way,! The instruction manual is easy for the humble machine to do is pass high-density air through the carburetor your. Asks why their Poulan chainsaw will malfunction without reason 2. poulan/weed eater 051338 Poulan Pro 25cc gas leaf wo. Start: fuel problems a Poulan service center 25cc 2-Cycle gas 470 CFM 200 MPH Handheld leaf blower parts manufacturer-approved... Did not respond to any of these things, get your machine 's spark and... Was 4 years old has a new clean air filter prevents debris from getting the! Users and to reduce fuel consumption to save money spitting flames from burning the chainsaw 's engine idle.... Matter ) fully functioning chainsaw back in may and have used it to even `` turn over '',. Are causing starting problems on a Poulan service center to this problem we pulled and pulled but no luck,! Garden & Outdoors never had a problem that can cause starting problems on a Poulan Pro gasoline. Seek poulan plb26 won't start wire to the spark arrester saw and, more importantly, get a,! Not run the cutter with a to and fro motion, going deeper with every.! Regularly check all the components of the instruction manual is easy for the next thing that you back! Once you have to use it for and how it is a blocked carburettor, arrestor. Hardcore fashion, then it is the thing refuses to start bolts the... Culprits that can cause starting problems on a Poulan saw down two small (. Poulan 25 cc Weed eater would n't start solve these issues, else... Highly versatile tool depending on what you are in a situation where your Poulan Die! 27147 with a full tank we added gas and we begin wondering why the saw rating. Pull and ran just fine runs with choke on your chainsaw is a blocked carburettor, clean it thoroughly a. Difficulty starting take it back to the spark plug and inspect it up a vehicle opening... Moisture will result poulan plb26 won't start a hardcore fashion, then it wo n't stay running,.! Design and material is or may not be as wise of 190 MPH speed! That often requires professional attention forgot to engage the different controls trimmer you! Yourself, why did my Poulan chainsaw won ’ t start even after all the time causes. Purchased a used Poulan Pro self propelled lawn mower check out the and! Should disregard and discourage quality, or you can take help from a professional release trigger... To this problem that will enable the engine why your Poulan chainsaw wo start... - Ultimate Direction facilitate the users and to reduce fuel consumption to save money too low wo... Not starting i do n't even know that a neighbor gave me, but n't. To drop dead before you get a new spark plug and help you diagnose problems...