1988 Pontiac Lemans Runs Rough

SOURCE: rough idle

fuel filters rarley cause idle problems. i would look at the egr valve or possible vaccume leaks.

SOURCE: Check engine light comes on temporarily - engine chuggs at idle

Before changing you pcm try cleaning your egr valve. remove the valve and see if its stuck in the open position if so use a small pick to clean around the spring.

SOURCE: 1988 Ford Crown Vic Strange Idle

change the egr vavle !!!!!!!!

SOURCE: 1988 Ford Crown Vic Strange Idle (Getting Worse)

i am trying to install an aftermarket temperature guage with capillary tube into my 1988 crown victoria ltd 5.0 efi. where does the capillary tube mount?

SOURCE: 02 Chevy Avalanche Off idle engine runs rough then smooths out

The clamp bolt in the center of the steering column put a small cut in the #5 ignition wire and sent the code to the computer for multiple ignition failures(I forget exactly the terminology that they used and what code; I think it was 0300). The arching must have told the computer to richen up the mixture because you could smell raw fuel. I replaced the wires and ran a can of Seafoam through one of the vacuum lines(brake booster) and all seems well. If I had listened to everything I read at other websites I would have been replacing the Cats and the Ignition Coils-very expensive items. Instead it cost me $50 for a set of wires.