Idling problem after converter install
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From: shelby twp, michigan
Idling problem after converter install 2 weeks ago I had a 3600 Yank converter installed and recently when I am at a red light or a complete stop the car starts to buck and surge, almost shutting off. Does anyone have any experience or a solution for this problem? I have 2.73 gears and a B and M trans cooler also if that matters. Thanks for any help!
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From: On the Bumper!
If you didn't have it tuned for the smaller diameter stall converter, it is likely just a little dizzy and trying to figure out the new rotating mass it is dealing with. Usually raising the idle alone corrects that on a moderate sized stall converter. If it hasn't been tuned yet, you could try doing a full PM reset and let it have some learn time. It may line itself out, but a tune would definitely fix the problem and unleash quite a bit of HP if your PCM is still untouched. The pcm reset procedure is listed below. I hope this helps. G/L.
How - To:
Step 1
Turn key on but don't start car.
Step 2
Pull PCM BAT and PCM IGN fuses in engine compartment. You should be able to pop open the cover to the fuse box with your hand, if not a small screw driver works well.
Step 3
With the fuses removed, wait a few minutes - I've set myself on 5 minutes which works for me - your key should still be in the ignition in the on position - NOT STARTED.
Step 4
Turn ignition off.
Step 5
Replace the two fuses. BE SURE TO PUT THEM BACK WHERE THEY CAME FROM! One is a 10a, the other is a 15a, the cover marks them in case you mixed them up.
Step 6
With the fuses reinstalled, fire up the car and your car should have no SES light and will begin going through the learn process again. It may take a few (3-4) on off cycles to get the idle, fuel and timing down but you shouldn't notice any differences.
How - To:
Step 1
Turn key on but don't start car.
Step 2
Pull PCM BAT and PCM IGN fuses in engine compartment. You should be able to pop open the cover to the fuse box with your hand, if not a small screw driver works well.
Step 3
With the fuses removed, wait a few minutes - I've set myself on 5 minutes which works for me - your key should still be in the ignition in the on position - NOT STARTED.
Step 4
Turn ignition off.
Step 5
Replace the two fuses. BE SURE TO PUT THEM BACK WHERE THEY CAME FROM! One is a 10a, the other is a 15a, the cover marks them in case you mixed them up.
Step 6
With the fuses reinstalled, fire up the car and your car should have no SES light and will begin going through the learn process again. It may take a few (3-4) on off cycles to get the idle, fuel and timing down but you shouldn't notice any differences.
I write checks with my mouth that my ass can't cash
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yeah i installed an SS4000, im schedualed for a tune, it idles a little rough for now but not unmanageable by any means....one thing iv noticed if im just rollin through town and its in lock up and i give it a little gas to go and it doesent unlock say goin 20 mph, it makes an aweful noise like a rattle..hopefully it didnt hurt anything i try not to make it do that as much as possible i had to put the break in miles on it though !
