Freebee
#1
06-07-2008, 12:05 PM
Freebee
I was just given an 87 GXL. It has 206,000 miles on it. It runs good and smooth but idles around 1500. Im good with carbs but not fuel injections. I cant seem to find an idle screw on this puppy. The cars in good shape just needs A LOT of TLC. Ill see if I can figure out how to post some pics.
#2
06-07-2008, 12:24 PM
RE: Freebee
On top of the upper air intake manifold there's an idle air adjust screw. It might have a rubber cap on it. pull it off and you should be able to adjust the idle down a bit.
#3
06-07-2008, 01:08 PM
RE: Freebee
I found the screw but it's cranked down as low at it'll get. The wierd thing is that the rpms will increase the longer I keep it in neutral. It'll start off at 1300 and will slowly increase to 1800 after about five minutes.
#5
06-08-2008, 10:02 AM
RE: Freebee
I tried to post yesterday but the site wouldn't let me. I don't know that that TPS would be bad. I'm no expert on setting them, testing or adjusting them. A friend of mine adjusted my tps screw by ear and got my car idling after a rebuild. Prob not the best way to do it but you might try adjusting it to see if it helps. It's on the front part of the throttle body.
#9
06-08-2008, 09:54 PM
RE: Freebee
ORIGINAL: RotorBalls
I tried to post yesterday but the site wouldn't let me. I don't know that that TPS would be bad. I'm no expert on setting them, testing or adjusting them. A friend of mine adjusted my tps screw by ear and got my car idling after a rebuild. Prob not the best way to do it but you might try adjusting it to see if it helps. It's on the front part of the throttle body.
I tried to post yesterday but the site wouldn't let me. I don't know that that TPS would be bad. I'm no expert on setting them, testing or adjusting them. A friend of mine adjusted my tps screw by ear and got my car idling after a rebuild. Prob not the best way to do it but you might try adjusting it to see if it helps. It's on the front part of the throttle body.
#10
06-09-2008, 06:55 AM
RE: Freebee
The TPS can be out of adjustment. You cannot just adjust it by turning the screw. There is a tool that is needed to ensure that the TPS is within range. I will get the name of the tool (it has 2 lights that lets you know when the TPS is within & out of range).
