Tahoe revs when coming to a stop ????
05-06-2006, 02:17 PM
#1
Tahoe revs when coming to a stop ????
When I am coming to a stop, my engine will rev up about 300 to 400 RPM's, causing the truck to lurch right before it stops. It just started doing this recently. The transmission was rebuilt by GM a few months ago. Does anyone have any suggestions or thoughts as to what could be causing this? I can't tell if it is just revving, or if it is downshifting, but it happens at about 5mph or less. Any thoughts would be greatly appreciated. Thanks.
05-06-2006, 02:49 PM
#2
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Tranny issues
What was the reason for the rebuild? Did the dealer rebuild your existing tranny or replace it with a factory rebuilt tranny? Rebuild should be under warranty from dealer, I would return to dealer first and have them check if there are any stored codes in the computer.
05-06-2006, 05:06 PM
#3
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Mine does this, but it is due to the ported TB and me adjusting the blade to get it to idle with my cam. I believe the IAC needs to be adjusted in the PCM to correct for it, but it just doesnt bother me enough yet to do it.
05-06-2006, 07:41 PM
#4
Originally Posted by Doobie
What was the reason for the rebuild? Did the dealer rebuild your existing tranny or replace it with a factory rebuilt tranny? Rebuild should be under warranty from dealer, I would return to dealer first and have them check if there are any stored codes in the computer.
05-12-2006, 05:35 PM
#7
Mine does the opposite, it tries to stall when I am coming to a stop. I did a little bit of research on it and I think it has something to do with the desired airflow tables in gear and low RPM. Run the truck up to like 10 or 15 mph, put it in neutral, and see what the RPM's do. I think I recall reading that if the RPM's bounce up and down (like mine do) that the desired airflow tables need some work. Although - I don't know why your tables would have changed from stock if you don't have a cam.
Maybe try giving Jesse a call and see if he knows anything about it.
Maybe try giving Jesse a call and see if he knows anything about it.
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05-17-2006, 01:45 PM
#8
Originally Posted by thunder550
Mine does the opposite, it tries to stall when I am coming to a stop. I did a little bit of research on it and I think it has something to do with the desired airflow tables in gear and low RPM. Run the truck up to like 10 or 15 mph, put it in neutral, and see what the RPM's do. I think I recall reading that if the RPM's bounce up and down (like mine do) that the desired airflow tables need some work. Although - I don't know why your tables would have changed from stock if you don't have a cam.
Maybe try giving Jesse a call and see if he knows anything about it.
Maybe try giving Jesse a call and see if he knows anything about it.
05-17-2006, 08:28 PM
#10
Originally Posted by TX Tahoe Z71
ttt. anyone else with suggestions?
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