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!

 

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.

 

Ok thanks a lot for the help I will try that! I haven't had a tune yetbecause I am waiting for a cam and headers.

 

Damn that should be in the stickies, GOOD INFO

 

Correct above. Anytime you switch stalls sizes you need the tranny and the shifts retunned. It changes everything from shift points to down shifts to idles.

 

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 !

 

Throttle cracker and follower tables fix the idle.