pfoley12

First, yes I've searched the forums and haven't found my solution.

Just last night I was leaving my buddies. Drove for about 2 miles, truck was running and shifting fine. Go to take a right turn and gave it half throttle and the tranny felt like it was slipping. Like the nose of the truck fell down. Once I get over 35 mph it shifts fine.
Also I removed my custom tune to see if that was effecting it, went for a test drive, still the same but then my theft light started flashing.
Start it this morning with my spare no more theft light, but still hesitating. Doesn't feel like a misfire, idles fine. Didn't throw any codes. Trans shot? Bad solenoid? I'm stumped thanks

pfoley12

It's a 2000 5.4 4x4 4r70w. 3.55 LS. Fluid is red and at the correct level.

Jbrew

...

Carcrazygts2

Highly possible. Especially running 35's on stock gearing. Its hell on the 4r70.

pfoley12

so you're thinking it's done right?

Carcrazygts2

Highly possible. Doe sit do it all the time now?

pfoley12

yes I've only driven it around the block a couple times though

4x4dave

The clutches in your trans are probably toasted. Most likely need a full rebuild.

pfoley12

Ibd told me to test the TPS. Well since it was only 35$ I was going to replace it only to find the top screw has been stripped... So tomorrow I'll have a shop replace that and go from there.

99SportXLT

Mud Graps are HEAVY too. That sucker might be dead.