At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Idling problems my 1997 chevy cavalier runs great till it gets warm and then idling becomes a problem when i stop at any stoping point and idle in drive the car wants to stall seems as if its missing a firen point is there any way of testing the coils without spending a million dollars to pay for some money hungry shops house payments
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Check coolant temp sensor. These fail often and cause all kinds of mystery problems. This unit acts much like a choke on old carb engines and can fail in different ways. Most common (I think) they fail such that the ECU thinks the engine is cold when it has begun to warm and thus the ECU delivers too long a pulse to the injectors so that the engine runs way too rich. I think it is also possible for the sensor to fail at any point between cold and warm such that the fuel mix is wrong except for the particular temp at which the sensor is stuck. Also O2 sensor has some fuel "trim" input.
Mass air flow sensor is probably going bad or has fouled from bad air from lack of maintain a clean air filter and filter box, or is sucking foul air into the system after the air filter.
Get a computer scan for trouble codes to see if that points you towards the problem. Possibly an engine sensor is not working right till it is warmed up. You might also check the idle air control for proper operation when cold.
Check for vacuum lines that have become disconnected or cracked. Check ignition wires. Check for fuel leaks. Check for dirty air filter or a clogged fuel filter. Check spark plugs for fouling and replace if needed. Check distributor cap for cracks. Check cap conductors inside the distributor cap, make sure they are clean. Good luck.
Idle air control valve is usually the problem when you have no drivability issues and no codes other than an idle issue., Clean the throttle body. this may help but if it doesnt you will need to swap the IAC out.
think it need putting in the dealers ,a sensor somewhere is playing up but not commiting myself here because its a american car and it could be built for californian specs so it will have a different system to what i would expect to see on a europeon model
×