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Timing issue when car is warmed up

1K views 2 replies 3 participants last post by  smurf stang 
#1 ·
My friends 91GT has been popping out of time. Apparently it drives fine when the car is cold. But after a while of driving it, it starts to idle out of whack and turns off. Hes taken it to a couple mechanics who changed the distributor and fixed it shortly. But after he gets a little throttle happy. The car will start doing the same thing.. Can anyone please help! I tell him theres nothing better than fixing the problem on your own but we need a good starting point on what it may be.. Any help will be appreciated, thanks!
 
#3 ·
That is a good place to look.

Also run the codes as that is free.

Also try searching for vacuum leaks.
 
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