grand am problem

[jc1990]

HI EVERYONE im having a problem with my 98 grand am 3100v6 it runs great and smooth but for some reason only way it will start is to have your foot on the gas usually 1/4 to 1/2 way down when it starts it idles high for about 3 seconds then is perfectly fine does this warm or cold no check engine lights but im thinking fuel pressure regulator or throttle position sensor been doing this for about 2 months now im stumped.

 

[MGregoir]

My Malibu has started really really hard with the same motor since it was new unless it is extremely cold outside...I don't have an answer but I'd like to know. I can start mine without putting my foot on the pedal but I have to crank it for several seconds unless I turn the key, wait five or so seconds for the fuel pump to pressure up (I think) and then crank it to start.

 

[jnyost]

Originally Posted By: jc1990
HI EVERYONE im having a problem with my 98 grand am 3100v6 it runs great and smooth but for some reason only way it will start is to have your foot on the gas usually 1/4 to 1/2 way down when it starts it idles high for about 3 seconds then is perfectly fine does this warm or cold no check engine lights but im thinking fuel pressure regulator or throttle position sensor been doing this for about 2 months now im stumped.


It seems like you may have a leaky injector. It may be bleeding off a little bit.

Try this. Turn key forward to first notch until fuel pump turns off. Turn key off and then back on. Repeat about 3 or 4 times and then try to start.

Jared