Originally Posted by WEWILLE
Do a key on engine running test, key on engine off, contribution test... check your icp voltage, fuel pressure... etc It sounds to me that your engine running issue is causing what you percieve as a transmission problem. Is it back to stock right now? If not but it back to stock
The truck is back to stock as of 5-19
. So you thank that it may be engine related problem? OK, but this is what has happened, (First time)
I was playing around with the different settings on tuner. It has, stock- tow- performance- extreme and had adjusted from tow to extreme and took off from 20mph kick the truck took off fine then all of sudden the tranny didn't shift and the engine was at 4k rpm on the tach. I let off the throttle and then it shifted hard, It only did it once that was it for about three weeks. (Second Time)
I was in traffic running about 40mph when the tranny started hunting gears. It rev up to 3k then you fill it shift but not hard as before then back down to about 1500rpms or so did that about four times as I was driving then it was fine! (Third Time)
the same day as 2nd Time, but had traveled about 3 to 4 miles to the highway running about 55mph went to pass a car it kicked down fine (tuner was in tow). Passed car let off throttle didn't up shift, I was up to 3000rpm. Stabbed throttle twice then it shifted to 5th and was fine the rest of my trip. That freaked me out a little and wanted to check and see if it did it with the tuner uninstalled and so on. Its has been fine other then the idling thing that it did the other night. That's it and the code p0603, but it has not popped up again after the last time I cleared it. Every time this has happened the truck was up to temp not cold. I'll do the test tonight and see what I find out. THANKS for the help!!! Just wanted to see what somebody though about it too!