98 Cavalier cold start...

Here is my problem...

When it is very cold my car starts fine...on a hot day it does not...i have to press on the gas pedal if not then it will just turn, turn and turn....

I have replaced fuel filter, checked fuel pump, engine compression, wires and plugs are good....

I used to buy regular fuel then i switched to supreme and it made a difference for one month then it was back to normal again...i also put injector cleaner many times.....

please help me...this is getting really annoying...

Thanks...SIMON

98 Cavalier 2.2L

well there could be several problems... if i were you, make sure you are putting oil in that is made for summer time driving... if your using a thicker oil in the summer, its like pushing sludge and mud through your engine, because it is so heavy... in winter it should be lighter as well...

Is your engine cranking fast enough. I had the same problem and it was because the el cheapo replacement starter motor was falling to bits after one year. I put in a decent rebuilt starter and I have never had a problem starting hot again.

Mark