The car is running fine but the engine light came on yesterday and is still on. I don't have an owners manual so don't know where to begin. I have been running my air conditioning continously for the past 2 months... help?
There are a very large number of reasons the check engine lite will come on. Some conditions will clear but the lite will stay on until it is cleared manually. I would susgest taking it to the dealership or too a local mechanic who can use a scanner to read the code that is locked in. If the problem no longer exists than they can clear the code and the lite will go out and if their is a problem with the car the code should give you/them a place to start.
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Depend on mileage on them. Personally I don't run plugs more than about 50-60K regardless of what the owner's manual says.
Pull plug three and see what it looks like: fouled (dark oily residue, bent electrode, etc. If electrodes seem worn from use and mileage, replace plug--you'll see scooped out area on outer electrode if excessively worn, clear code and see it it runs ok. If it codes again it could be a bad plug lead as well. If code returns then check out lead to plug or replace it. Plug 3 will be on the left bank of the engine third one from the front. Plug order is:
You reset the change oil soon light by a couple of different ways depending on your model. Your owners manual will let you know. Some is by depressing the accelerator when car is not running but in accessories mode on ignition. Others you can reset through the radio. Take a look at your owners manual on this. For the service engine soon light, take it to a autozone and they will run a diagnostic for free. Then they can tell you just what is going on and will have the part to fix it. It is probably an oxygen sensor if it is otherwise running fine. good luck and I hope this helps.