Auto has been losing coolant . Took to gmc dealship repair service 99 they replaced radiator hoses. Six months later coolant was found dirty had a flush . 3mos later the samething took back to dealship they replaced heater hoses and thermosta, two weeks later stilling leaking this time was told cylinder head cracked at center bolt hole and leaking coolant internally, this time they replace cracked cylinder head and gasket set. This vehicle has never I mean never ran hot nor did it show any signs of having ran hot.. Was told by dealership 1995 sunfires and 1996 sonoma with the same engine had same problems but my 1995 sonoma was never added to bulletion.
1995 GMC Sonoma engine complaints
Page 2 of 2: complaints 11 to 26 of 26, newest first, as owners wrote them.
Vehicle has had 3 head gaskets during it's 18,000 miles, consumer fells it should be recalled. Nlm
The engine failed, was rebuilt yet failed again. Nlm
Head gaskets failed on vehicle at 90,000 miles causing me to to replace the whole engine of my truck. Mechanic and many people I spoke with have stated that they have not seen a 95 sonoma engine last past 100,000 .
The head gasket of the engine has blown out causing a coolent leak on the back side of the engine. The mechanic at the local dealership has made the statement that he has seen 5 or 6 other vehicles with the same engine have the same problem with the head gasket blowing out. The leak started off small but has gotten progressively worse over the last four months. If this is true at all the other dealerships, this seems to be a high failure rate for this type of engine.
Cooling system fan belt has a lot of play in it, and engine head gasket has been leaking for two years. Both problems fixed under warranty. *ak
Car shuts down for no reason.
I have been told by several dealers and service centers that this is a common problem and they have had several in their shops. I should contact you with this problem.no safety defect listed in the summary.
Transmission(auto) failure : flywheel "shattered" due to bad torque converter and flexplate(july 23,1996) starter bolt broke while driving at 55mph. Starter had to be replaced.(may 24, 1997). Starting difficulty. Starter bad and replaced again, plus replaced bad flexplate/flywheel again for 2nd time(aug 26, 1997). Starter shorting out. Replaced starter for 3rd time(sept 9,1999). Catalytic converter malfunction and replacement, muffler also replaced(dec. 13, 1997). Windshield wiper failure, pulse module bad(aug 16,1996) and wiper failure again intermittantly, replaced under recall(sep. 1, 1999). Seatbelt driver's side retractor broken, replaced under warranty(aug 26,1997) seatbelt passenger replaced under recall (sep 1, 1999). Window crank handle snapped in two while cranking window down. Sharp jagged edges cut hand and fingers.(sep 1 ,1999). Horn inoperable on several occasions, twice when I needed it to alert an encroaching vehicle which almost hit me. This problem was unable to be reproduced at the dealer service center. Still a potential safety problem/liability(may 15, 1997-ongoing intermittantly, and dealer would not replace unit). Throttle stuck open at high speed (45-50mph) on at least five occasions, causing me great fear, extremely dangerous potential for accident(may 1996 to present).
Hydraulic lifters collapsed
The head gasket failure caused coolant to leak.
While driving the coolant is getting into the engine and deteriorating the freeze plugs, causing the engine to overheat. Has been to dealer 3 times for same problem.
While driving at 65 MPH a loud noise came from under the hood. Driver turned off engine, pushd on the fan and the fan on fell off. Owner was able to drive truck home. Parts have been ordered. Dealer has not been notified about the problem.
Engine oil leak.
The truck is making a lot of engine noise when trying to start truck. Tt
Carbon comes from manifold and goes into egr valve, blocks open causing loss of brakes. Tt
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