Ok here is a list of symptoms: car idles high (around 2k) runs rough at lower speeds engine keeps going after the car is turned off
Its a corolla SR5 (130k, auto) with a carburetor. The carb was recently rebuilt but the problem is still there. Any ideas? Do I need a whole new carb or is the problem somewhere else?
One more thing. There is a small oil leak from the distributor o-ring. How hard is it to replace the o-ring?
Who rebuilt the carburetor? Is there some kind of guarantee on the work? The symptoms sound like a rich mixture or too much fuel in the bowl. You should not need a new carburetor if the rebuild was done properly.
The distributor O-ring is very easy to replace if you have a timing light. Mark the distributor's position with an awl, remove the distributor shaft, install the new O-rings, replace, and re-time.
It was rebuilt by a mechanic. Im pretty sure it was done properly.
When the engine keeps going after the car is turned off, the cause is usually carburetor-related. If the carburetor was rebuilt properly, then the combination of symptoms that you described in your original post should be gone.
To answer your original question, a vacuum leak will not cause the combination of symptoms that you are describing.
Thanks for your help.
You're welcome.
Let us know what you find.
IMHO you have bad spark plugs - too hot for your compression ratio - any modification? or deposits on the head? It can cause 2nd a 3rd symptom, maybe
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