Used 1997 GMC Sierra 1500 Consumer Reviews
Purchased truck with 30k miles on it. Intake manifold gaskets have leaked / blown out and been replaced. Alternator has been replaced. There is a fitting on top of the intake manifold towards the front just behind the alternator that has severely corroded for some reason (looks like heater hose line) and will have to replaced. AIr conditioning/heater fan speed switch has been replaced. Leather seats have craked badly in spots in spite of regular care and conditioning. ANd third door has always rattled, popped, squeaked and basically sounded like a bag of bolts.
transmission went out 50000 miles, wiper motor went out 52000 miles, alternator out 40000 miles, egr valve bad70000 miles, door handle broke 75000 miles, thermostat heater went out 66000 miles. many other little prob
Third GM with intake manifold leaks. 1 4.3, and 2, 5.7 vortecs. GM knows this problem exists. ASK ANY DEALER. Sun Crashes dashes. Two water pumps, one on 4.3with 47000 miles, one on 5.7 with 50M Rattles in dash. Gas mileage on 5.7 is excessive. New tune up may get 15... Heater hoses are poor quality...corrosion.
I've owned this 97 GMC z71 fullsize truck for about 2.5yrs. Had lots of repairs completed, listed are radiator, rear brake wheel cylinders (both sides) brake lines, alternator., water pump, egr valve, idler pully, headlight switch, loose steering box. The list goes on. The truck is much too heavy for the braking system. I lost the brakes at a red light, the brake pedal went to the floor. Rear brake line rusted out. This truck has been very well taken care of, garaged and with light use. About 79,000 miles on it now, looking to spend more money to get the electrical problems resolved. Breaks my heart GM can't build a truck that will last. Looking to trade, can't afford repairs, along with payments.
Well I just got this truck from my parents, well my mom, with a whole 220 thousand miles on it! I love it! Only thing is my mom gave up on fixing the problems on it like 6 months before I got it, so I put a new heater core in, new radiator, new tires and wheels. We did have some problems with the transmission like at 160k miles, and I think the rear diff is going out.