Engine Cooling System Problems of GMC Sierra

GMC Sierra owners have reported 15 problems related to engine cooling system (under the engine and engine cooling category). The most recently reported issues are listed below.

car image   Engine Cooling System problem of the 2002 GMC Sierra 1
Failure Date: 12/03/2015

The contact owns a 2002 GMC sierria. The contact received notification of NHTSA campaign number: 15v201000 (engine and engine cooling); however, the part needed to perform the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

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car image   Engine Cooling System problem of the 2001 GMC Sierra 2
Failure Date: 04/05/2012

The contact owns a 2001 GMC Sierra. The contact was driving 40 mph when the vehicle stalled. The vehicle failed to restart and was towed to the contacts home. The vehicle was towed to the dealer where the dealer confirmed that the crankshaft needed to replaced. The manufacturer was contacted and they confirmed the VIN failed to qualify for a recall under NHTSA campaign id number: 07v521000(engine and engine cooling). The vehicle was not repaired. The failure and current mileages were 29,000.

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car image   Engine Cooling System problem of the 2003 GMC Sierra 3
Failure Date: 10/21/2011

Truck was entering major highway,traffic begins too slow due to rush hour ,seeing this occur I stepped on brakes expecting to slow down ,until I realized pedal had gone all the way to floor,then I let up an pushed to floor again-no brakes no room to go left or right impact was unavoidable,impacted car twice which pushed that car into another this truck was serviced by gm dealer for transmission cooling line and engine cooling lines Monday Tuesday and Wednesday, no mention of brake lines issue, accident occurred on Friday. Also had contacted gm about original work possible warranty. Updated 07/25/12 the consumer has since traded the vehicle. Updated 07/31/12.

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car image   Engine Cooling System problem of the 2001 GMC Sierra 4
Failure Date: 04/26/2010

The contact owns a 2001 GMC Sierra. While driving at approximately 35 mph, the vehicle suddenly shut off so the contact pulled over to the side of the road. The vehicle was restarted and taken to an authorized dealership; the dealer stated that the crankshaft sensor was the cause for failure. The dealer also informed the contact that the vehicle was not included in recall 07v521000 (engine and engine cooling). The vehicle had not been repaired at the time of the complaint. The current and failure mileages were approximately 70,320.

car image   Engine Cooling System problem of the 2001 GMC Sierra 5
Failure Date: 11/20/2007

The contact owns a 2001 GMC Sierra. While driving approximately 15 mph on normal road conditions, the engine stalled. All of the warning indicators illuminated on the instrument panel. The engine immediately restarted without assistance and the vehicle began to operate normally. The service engine warning indicator remained lit until the engine was turned off. The vehicle was taken to an authorized dealer for inspection and they stated that the failure was related to the crankshaft position sensor. Through research, the contact discovered NHTSA campaign id number 07v521000 (engine and engine cooling). He was informed that the VIN was excluded from the recall, although the failures were identical. The vehicle has not been repaired. The failure mileage was 50,000 and current mileage was 65,000.

car image   Engine Cooling System problem of the 2005 GMC Sierra 6
Failure Date: 09/08/2006

Since we purchased the 2005 GMC Sierra we have had problems with the radiator hose bursting within the first few months and having to have it towed. Since then we have had several overheating problems. The dealer constantly says they can not find anything wrong. We insisted they change the thermostat on one of our times there = they replaced that and a hose. We came home and anti-freeze was leaking. We thought it may be they overfilled it. Then it kept leaking and the truck overheated again 4th or 5th time. This was just driving home from about 10 miles. We had it towed in again and again were told they can find nothing wrong!!! we want answers to this problem. This truck is used for our business and in a year have had to have a new vehicle towed in 3-4 times and driven in. We want answers. We suggested they change the water pump after talking to another mechanic and they said they had problems with that in a different year truck, but have since fixed it. So instead they send you home and do nothing.

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car image   Engine Cooling System problem of the 2005 GMC Sierra 7
Failure Date: 07/04/2005

Extreme overheating of 3500 duramax while towing. Loss of power and overheating of transmission and engine. Numerous contacts with general motors and attorney general in michigan. Gm acknowledges there is a problem but don't know what the problem is therefore no fix for the problem. Are continuing to find a fix. We tow a 5th wheel in the colo. Mountains and this could lead to very serious problems if the engine should blow and we would have loss of steering and braking.

car image   Engine Cooling System problem of the 1999 GMC Sierra 8
Failure Date: 11/10/2002

I experienced a sudden onset of a hissing noise coming from under the dashboard. The noise only starts above 1400 rpm and when warm. I have taken it to 2 GMC dealers and 1 independent service shop. All have stated that the noise is water going through the heater core. 1 dealer said that the coolant must have broken down and gelled or scaled into the heater core; therefore, it must be replaced. GMC owners manual states change coolant at 150000 mile or 5 years, if so, why did the coolant break down? this appears to be a major issue and I have read of similar cases. Please help. Dt.

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car image   Engine Cooling System problem of the 1996 GMC Sierra 9
Failure Date: 01/21/2002

Vehicle leaks anti-freeze from vicinity of upper intake manifold. Chronic problem. Occurs after vehicle has set for 3-5 hours after running. Does not appear to be leaking into crankcase. Had system pressure tested. Told to monitor to see if it is getting into oil. Leaks about 1-2 tablespoons per shut down. Enough to be noticeable.

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car image   Engine Cooling System problem of the 1999 GMC Sierra 10
Failure Date: 12/20/2001

Repeated abs brake failure. This has not been corrected despite numerous attempts to repair problem(s). Heater motor malfunction, repeated wiper arm replacement, tailgate handle malfunction.

car image   Engine Cooling System problem of the 1997 GMC Sierra 11
Failure Date: 04/02/2001

Dexcool is coolant used in the system, but it destroys the cooling system when mixed with air. GMC will not recognize the fact that it put dexcool in the system and when the waterpump developed a weephole the air that got in destroyed the cooling system. This is GMC's and dexcool's fault.

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car image   Engine Cooling System problem of the 2000 GMC Sierra 12
Failure Date: 04/25/2000

There is no indication on the panel that there is pulsation. Also there is no abs noise and light braking power. Dealership is aware of problem. Consumer stated that heat vent cap keeps popping off and replaced. Tail gate bed liner not flat, panel rippled and rescuer rear panel, install additional fastener. Horn pad failed, brakes are squeaky,, abs system checked could not duplicate any problem, brake pedal goes to floor at times and vehicle does not stop, master cylinder leaking internally.

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car image   Engine Cooling System problem of the 1998 GMC Sierra 13
Failure Date: 03/27/2000

Heater connector leaking causing the check engine light to illuminate. Nlm.

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car image   Engine Cooling System problem of the 1996 GMC Sierra 14
Failure Date: 02/04/1999

Blower motor noise.

car image   Engine Cooling System problem of the 1996 GMC Sierra 15
Failure Date: 12/07/1996

Cooler line connection failed.


Other Common Engine And Engine Cooling related problems of GMC Sierra


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