GMC Sierra overheating problems

Filed Mar 3, 2015 · Engine · 83,000 miles · PA

Tl*the contact owns a 2007 gmc sierra. The contact stated that the cooling system was leaking fluid causing the vehicle to overheat. The failure recurred several times. The vehicle was not diagnosed of repaired. The manufacturer was notified of the failure. The failure mileage was 83,000.

Filed Oct 25, 2014 · Engine, Transmission · 61,000 miles · FL

Engine light symbol message appeared on vehicle during the early part of september. (not quite sure of the date). Dealership indicated that the work was covered under warranty and will require a full day to replace parts. After repair the vehicle seem to operate excellently until the middle part of october. Engine light message appeared again on vehicle. At this time the service manager identified the problem as a sensor overheating. Needed to bring vehicle back when diesel mechanic is on duty. Requested advice for travel. Service manager cleared code. Engine light message came on again in minutes. The next day while traveling engine lost of power message came on within 150 miles from where we departed. Before lost of power a message of low in exhaust fluid flashed on and off. Pulled to the side of the road and turned engine off for about 30 minutes. Restarted vehicle and the vehicle drove well to our destination of 248 miles more. Carried vehicle to a gmc dealership. The dealership identified the following codes: p113a-egr temp 3-4 correlation; p2471-egr temp sensor 4 high voltage; p20cc-exhaust fuel injector performance history. Dealer stated repair could not be address due to other scheduled appointments for a week. Dealership mechanic cleared codes. Engine symbol returned in 25 minutes. While returning back home the vehicle again gave the message low in exhaust fluid and within minutes went into lost of power mode. Scheduled appointment with the dealership again to resolve the problem.

Filed Jul 14, 2014 · Body · 10 miles · MA

Tl* the contact owns a 2014 gmc sierra. The contact stated that the vehicle was designed with large holes in the grill. While driving various speeds, weeds would enter the grill and accumulate near the radiator. As a result, the vehicle overheated. The dealer stated that the vehicle was designed in that fashion. No repairs were made and the manufacturer was notified. The failure mileage was 10. Updated 8/22/14

Filed Mar 31, 2014 · Engine · 175,000 miles · TX

I have a 2001 gmc sierra that has been losing coolant for about 2 years now. I was told it was a common problem with these trucks just wandering why nothing has been done.

Filed Jan 17, 2014 · Engine · 100,872 miles · NC

Took vehicle in for new brakes and coolant leak. No complaint about brakes, but complaint about coolant leak. Coolant leak issue is connected to gm tsb 06-06-01-019b and affects castech 706 cylinder heads. The coolant is leaking into the heads because of a known porosity issue. My engine will have to be replaced if the problem is not addressed because of glycol contamination. Gm dealer said to just "keep an eye" on it. A second, independent mechanic, did confirm the coolant leak is not external and my engine will fail if the heads are not replaced. This appears to be a known issue with gm for manufacture years 2001-2006 on the vehicles with the 5.3l engine.

Filed Sep 15, 2013 · Engine · CA

My vehicle began losing coolant. I took the vehicle to a mechanic, who has told me that the cylinder head is cracked and leaking. This is due to faulty casting on the cylinder head.the coolant is leaking into the heads, and causing the oil to lose it's ability to protect the engine from wear. I have seen that there are many people with this issue, and it is a very costly repair.

Filed Jan 9, 2013 · Electrical · 95,000 miles · AL

Tl* the contact owns a 2007 gmc sierra. The contact stated that the heater failed. The motor would operate but no heat would emit from the vents. The vehicle was taken to the dealer for inspection where they stated that the wiring was overheating and the wiring harness needed to be replaced. The vehicle was not repaired. The manufacturer was notified and advised that the vehicle was not included in any recall. The failure mileage was 95,000.

Filed Jan 26, 2012 · Electrical, Visibility · 97,500 miles · AK

Describe below is exactly what has occurred with my vehicle. However gm replacement part is defective and issue is under recall in canada???? Not u.s.??? Part is being redesigned may be a couple of months?? Being told will have to wait in mean time I have manually bring heat up from low and may have heat may have to shut down vehicle and start at low. Not very reassuring when temps are -40f below zero. Until part is re-designed or engineered??? I am suppose to drive this vehicle which is listed under a safety recall and encounter continued failure and possible engine fire???? Not acceptable! Http://wwwapps.tc.gc.ca/saf-sec-sur/7/vrdb-bdrv/search/recalldetail.aspx?rn=2011074&lang=eng recall date 2011/02/21 notification type safety tc manufacturer recall number 11046 units affected 190,310 category light truck & van, SUV recall details on certain vehicles, the interface between the electrical terminals of the heating, ventilation, and air conditioning (HVAC) blower relay resistor module and the wiring connector (which powers the module) may be incapable of conducting higher current levels for sustained periods of operation. In addition, moisture and other contaminants (such as road de-icing materials) may enter the fresh air intake plenum and contact the internal circuit of the module or corrode the terminals. These conditions may cause the relay resistor module or wiring connector to overheat, causing various symptoms such as: the HVAC blower may not function on certain or all blower speed settings; a burning-plastic smell or smoke may be present in the vehicle, or; the HVAC blower may run continually with the ignition in the off position. These warning signs could, in certain instances, be leading indicators of an impending vehicle fire, which could result in property damage and/or personal injury. Gmc sierra 2003 2004 2005 2006 2007.

Filed Jan 23, 2007 · Brakes, Electrical · 34,000 miles · CA

Tl* - the contact owns a 2005 gmc sierra hybrid truck. Two weeks ago while driving at 5 MPH the vehicle's steering wheel and the brakes locked. The contact was able to drift to a stop. The vehicle also vibrated, and made a whistling sound. After several attempts the contact was able to restart the vehicle. The vehicle's lost power at red lights; however, it restarted. The dealer stated that they did not have the parts to repair the vehicle, they were also waiting for a technician to diagnose the vehicle. The vehicle has been at the dealere for three weeks. The dealer also stated they didn't know where the parts were coming from, yet they've ordered the parts. The contact was currently renting a vehicle. There were no warning indicator lights present at the time of the incident. Two weeks prior to the failure, the contact's vehicle overheated and the warning indicator light appeared. The dealer replaced the water pump. The contact also spoke to gm and was told they would investigate the dealer. The contact thought there was a failure with the battery, it was defective and serviced under the warranty.

Filed Sep 8, 2006 · Engine · 7,838 miles · NY

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.