i have a 2000 cavalier, with the 2.2L and an automatic, with just under 85,000 miles.
When it is cold outside and the motor is cold it starts up just fine, but when it is warm out or the motor is warm it has a really hard time starting, i have to hold the gas petal down to get it to start. I have replaces the IAC recently because that was bad, but it did not help at all, i checked for vacuum leaks and found none. I also replaced plugs, wires, and gave it an oil change, and ran fuel injector cleaner through it.
When the motor is finally running it runs rough, you can actually see the motor shaking, and sometimes its only a little sometimes its pretty bad.
Not sure what this might be so any suggestions would be wonderful.
Thanks in advance.