High idle on 84 trans am

AOL and talkaboutautos. You win the double dumbass challenge. Now step away from the car and let someone with a clue drive it.

Thanks, I'll pass that on to my 16 yr old that owns the car and is taking driver's ed to be able to drive this car and wants to fix it up.

Sounds like a bad choke or electrical problem in the choke heater circuit.

Thank you, we will check this. 1984 trans am 5.0 fuel injected.

There were no fuel injected engines installed in any 1984 Trans Ams.

The only engines available in the 1984 Trans Am was the VIN code H 150HP LG4 305 V8 and the VIN code G 190HP L69 305 H.O. Both were carburated. Check the 8th digit of the VIN number.

No "Cross Fire" EFI in 1984? I know it was available in '83 because I had one.

-rev

#1: Check for intake leaks (all manifold gaskets, hoses, power brake booster, etc).

If it really is fuel injected, the idle air control motor should manage the idle speed. Maybe it's stuck or otherwise broken. Is the check engine light on or off while running?

If it's carburetted, the electric choke/fast-idle could be stuck or the elecric choke element burned out. It could also just have the idle speed adjusted too high by some misinformed prior mechanic.

Post back whether it really is or isn't fuel injected. Do you have a service manual?

-rev

Nope. CrossFire was from 1982-83 in the F-body. Discontinued for 1984 because the carburated L69 5.0L HO engine considerably out performed it and there were just too many problems with the CrossFire injection. The

CrossFire is one of those things that looks good on paper but not by the time it hits production. Kind of like the 1980-81 Turbo Pontiac 301.

Sorry, it's an '86. Use to own a '84. Owned so many vehicles all I know is that I drive the big purple van anymore. LOL. Even owned the Daytona 500 trans am pace car.

when it runs high, the check engine light is off, but when she runs "right" (on occassion, like when it rains) the light comes on.