Topic: 2007 Chevy Silverado 4l80e code P0894 transmission component slippage testing with tech 2 scanner
So a little bit of feedback on the truck. it’s a 2007 GMC 1500 HD classic and just bought it recently notice halfway home when I was towing something it was shifting a little bit hard I wasn’t getting any coats, so I decided to put in some seafoam trans stuff and shortly after that I started noticing that I wasn’t getting a torque converter lockup. Then I was also throwing the p08 9 for code so I bought a Car Scanner-
I’m just doing a little bit of testing right. now I’m just going to get up to speed here in third gear. I’m gonna see what the duty cycle is on torque converter clutch solenoid you can see we’ve already throw in one slip counter okay there’s 100 kilometres an hour see that solenoids pulsing open 70 rpm slip-on here for my research up to 50s the most you’re allowed it’s obviously that’s no good just gonna step on ithere again and disengage that torque converter clutch you again.
It looks a little better this time ask in here and give 200 and see what happens was slowing down a little bit now okay. I’m gonna drive fourth gear get up to 100 kilometres an hour again okay steady at 100 you can see I’ve got 137 rpm slip.
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