Engine Hesitates To Start.

[Jacob4450]

Hi I have a 99 Mustang GT and my car seems to have trouble starting after i drive to a couple places like if i have some errands to do. And as soon as i start it it starts and immediately sounds like its gonna die it's like it's hesitating. The last 2 times with in 2 months it died when starting up. I really want to figure out what is causing this. Some people were trying to tell me its because of this Las Vegas heat but i doubt.

 

[wmburns]

How does the car drive otherwise?

Try this. Cycle the key multiple times on/pause/off without cranking. Listen for the fuel pump to run each time. Does this improve starting? If so, suspect fuel pressure leak down or a weak fuel pump.

 

[Jacob4450]

How does the car drive otherwise?

Try this. Cycle the key multiple times on/pause/off without cranking. Listen for the fuel pump to run each time. Does this improve starting? If so, suspect fuel pressure leak down or a weak fuel pump.

Once it starts the car drives like a dream. Ill try cycling the key a few times and listen for the pump the next time i go out and will let you know.

 

[sethahoward]

It must be red GT's, mine does the same thing. Nice looking car by the way.

 

[jetmech807]

Mine just takes a couple extra seconds of cranking to start once in a great while. Once every 2 months or so.

 

[Jacob4450]

Ok guys I fixed the problem drum roll please................IT WAS THE GOD DAMN FUEL FILTER!!!!!!!!! Now it starts up instantly and doesn't stall anymore.

 

[PerformanceRed35th]

That sounds a lot like the idle air-control valve. My car would start and hesitate for a bit, then fire up. When I would clutch in the RPMs would drop very low (caused it to die a few times actually). I figured I'd replace that before the fuel filter, and it fixed it. Glad you solved the problem though!