I have a 2003 Envoy XL with the L6 engine. Automatic transmission, I understand it should be a 4L60.
I have noticed a problem the last week or two of stopping at a signal and the drivetrain is obviously dragging the engine down, sometimes it quits, and sometimes when I noticed it I took it out of gear and then it's all OK.
I haven't checked yet but originally there were no codes. I'll be checking that again today.
I see a parts listing for shift solenoids on that transmission, but no listing for lockup solenoids.
Normally when I have had this problem on other vehicles I just had all the lockup solenoids changed to resolve it. But I don't find a parts listing for this vehicle. Does that transmission have lockup solenoids or just shift solenoids?
I have noticed a problem the last week or two of stopping at a signal and the drivetrain is obviously dragging the engine down, sometimes it quits, and sometimes when I noticed it I took it out of gear and then it's all OK.
I haven't checked yet but originally there were no codes. I'll be checking that again today.
I see a parts listing for shift solenoids on that transmission, but no listing for lockup solenoids.
Normally when I have had this problem on other vehicles I just had all the lockup solenoids changed to resolve it. But I don't find a parts listing for this vehicle. Does that transmission have lockup solenoids or just shift solenoids?