ron993
New Member
I have 2002 Hummer H1 that has a the 4l80E in it with 68000 miles on it. I changed out my timing chain to Leroy's timing gears and messed up the injection pump timing. I took the truck to a mechanic friend that new how to fix the timing and while he had his computer hooked up he told me the temp sensor in the transmission was going out and was reporting erratic temperature readings. The previous owner told me the fluid was changed around 40000 miles. I figured if I was having to drop the pan I might as well swap all the solenoids out while i was in there.
Here is what I bought https://globaltransmissionparts.com/4l80e-solenoid-replacement-kit-1991-2003-5-piece-set/ along with a new AC Delco internal wiring harness
Some of the parts from global were AC Delco and some didn't have a name on them.
Now the truck is reporting a P1870 code that I know means something is slipping. I am thinking that one of the parts that I swapped might be bad? Does anybody have any ideas?
Here is what I bought https://globaltransmissionparts.com/4l80e-solenoid-replacement-kit-1991-2003-5-piece-set/ along with a new AC Delco internal wiring harness
Some of the parts from global were AC Delco and some didn't have a name on them.
Now the truck is reporting a P1870 code that I know means something is slipping. I am thinking that one of the parts that I swapped might be bad? Does anybody have any ideas?