I have check engine soon Light on my 2003 Nissan Altima 2.5S. It starts making big shake and sound when I stop and my car in gear and also GAS smell start coming. When, I shift D to neutral, it become well.
Code reader shows “Crankshaft position Sensor problem”, but I replaced new sensor from dealer, reset check engine light. After few miles engine light comes on again and still same problem. Please advice. Thanks.
This problem could be caused by the mass air flow censor, i had the same problem with my car. it is really pricey at the dealer so you might want to check elsewhere for this part. I found one at a scrap yard for 85% less that the dealer and i also got life time warranty, the dealer does not offer any warranty on this part.
My service engine soon light came on saturday on my 2003 nissan altima 2.5s, took it to the dealer and he stated I need a Catalytic Converter for the light to go off. Last yr Jan I had the same thing happen and there was a recall on the ECM they reset it for free. Any suggestions? I am so tired of getting ripped off being a single woman. The repair price they gave me was $940, my mechanic says he can repair w/new converter total charge of $300
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you have an issue with vehicle. could be anything from loose fuel cap to failed catalyst/ cat convertor, which is very expensive. you need to know the code number to get started with diagnosing issue. get your self a small hand hels scanner from your local friendly auto parts store and scan for codes. some part stores may even scan it for you for FREE. nissan dealer will charge you arm and your leg to look at it. our dealership charges 1hr of labor to look at "service engine soon" light and diagnose it no matter if it takes 5 minutes to figure out or 45 minutes you will pay 1hr of labor which could be around $100 big ones. so get a scanner which goes for around $60 and scan it your self and this way you have a scanner for future if the light comes on again for something else. that light can copme on for number of reasons.
If the check engine light is NOT on, it will be a mechanical problem like a clogged air filter, fuel filter or faulty spark plugs. If your check engine light IS on, it is a sensor like the O2 or MAF for example. Best to get it diagnosed if the check engine is on to specify with sensor is causing the problem.
If the service engne soon light is flashing, it means you have a hard failure, that is occuring at that time. If the car is shaking, it sounds like some sort of misfire. If you continue to drive it, you risk permanent damage to the engine, and catalytic convertors.
Your vehicle’s computer system has self-testing capability. When the computer senses that there is a problem with one of the components or sensors it stores the correspondent trouble code(s) in its memory and lights up the "Check Engine" or "Service Engine Soon" light to tell you that there is a problem and you need to diagnosed and repaired it. Some problems are minor, but if not addressed it could become major. The list of possible codes number in the hundreds. The code itself doesn't tell exactly what component is defective - it only indicates where to look, or what engine parameter is out of normal range. You or a technician will have to perform further testing to pinpoint cause and the proper repair. Even if you reset the light, if the underlying problem is not addressed it will come back on.
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