FlatBlackBurb
1/2 ton status
okay so im trying to adjust the idle screw on my '87 TBI unit. what kind of screw is it? i cant see really well down there and im just wondering if anyone can help me?
thanks
thanks
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
TBI idle adjustment screw!
- Thread starter FlatBlackBurb
- Start date
The screw you're talking about is probably a torx screw but adjusting it brings on a whole new set of problems.
Thunder
3/4 ton status
The adjustment screw is under a metal cap on the front of the TB. You have to drill out the cap to get to it.
It is really never ment to be adjusted from the factory setting. The ECM takes care of the idle. If you are having idle problems messing with that screw wont help much and may cause other problems.
If you have idle problems there is something else wrong.
It is really never ment to be adjusted from the factory setting. The ECM takes care of the idle. If you are having idle problems messing with that screw wont help much and may cause other problems.
If you have idle problems there is something else wrong.
If your trying to adjust idle you can do so, you need to adjust minimum air. Its a really simple procedure, search here or over at thirdgen to do it. I would explain but Im typing with one hand right now as my wrist is broken.
If the cap is still there, the screw hasn't been messed with, and isn't your problem.
