What would cause a car to shut down at 30mph or less when it is warm?

I don't know but I have a 1991 Grand Am LE with nearly 200,000 miles on it that's having the exact same problem. Someone recommended I try cleaning the idle air control valve. I haven't done it yet, but I'll let you know if it works. It's nice to know that someone else is having the same problem....

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What are the small jobs a mechanic do?

oil change, check fluids, tire rotation, brake checks, checking fuses, anything to that degree.

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How do you replace the o2 sensore on a 94 surban?

Unplug them from the harness, use a wrench or o2 sensor socket to remove them. Might have to heat up the area around the sensors (fitting) if they are seized. If the threads in the fittings are damaged use a spark plug tap/rethreader to clean up the threads. Thread in new sensors, tighten & p...

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