20 discussions on MotorsForum about the GMC 4L80E: what owners asked, what went wrong, and what fixed it.
I'm seeking advice on accessories or kits to improve mileage on my Suburban. I am considering a K&N filter kit (FIPK - Fuel injection Performance Kit)for the intake side, and am looking for suggestions for exhaust. Borla doesnot make a...
I have a 95 Chevy Tahoe with 145K miles on it. I have been warned that Ishould expect the transmission to fail between 140K to 160K miles, i.e. anytime now. When the inevitable happens I have been told to expect the repairto cost about...
Thanks to good advice I received from Marsh Monster, Brian Onion, andothers, my transmission is working again. I wound up sending the tranny toa specialty shop for a rebuild. It is now reinstalled, and works betterthan before I fried it.I...
Dear NG:Available to me I have the following truck.1998 Chevrolet 2500 Cheyenne 5.7L vortec (CPI) engine (130K)4L80E (130K)14 bolt rear (3.73) w/ positraction2x4 operationI own the following truck:1990 GMC FS Jimmy SLE350CUI TBI engine...
Dear NG:Available to me I have the following truck.1998 Chevrolet 2500 Cheyenne 5.7L vortec (CPI) engine (130K)4L80E (130K)14 bolt rear (3.73) w/ positraction2x4 operationI own the following truck:1990 GMC FS Jimmy SLE350CUI TBI engine...
I have a 2000 GMC with 5.7 engine & 4L80E transmission. Truck has 121000miles, but it appears that the transmission and TC have been changed. Ihave had the truck about 14 months and it was done sometime before I got it.TC is coming...