Intermittent rough idle
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Freshman User
Joined: Oct 2008
Posts: 44
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Intermittent rough idle
I have an 86 that just had both fuel pumps replaced a couple of months ago. It starts and runs great for a while then after it gets warm. It will set and idle fine for about five minutes then it will shutter a little then run fine again then progressively it will miss then finally die. If you start it again it will do the same thing again. Any ideas?
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
Might be the TFI, the IAC, the MAP, or the regulator inside the fuel filter cannister near the gas tank.
Usually if it dies after getting warm, the most likely suspect is the TFI module or a relay. If you can give it the gas and prevent it from stalling, it might be the IAC and it needs cleaning.
Usually if it dies after getting warm, the most likely suspect is the TFI module or a relay. If you can give it the gas and prevent it from stalling, it might be the IAC and it needs cleaning.
