One problem related to coolant leaking has been reported for the 2007 GMC Sierra. The most recently reported issues are listed below.
The contact owns a 2007 GMC Sierra 1500. While driving 65 mph, the contact stated that the vehicle shut off without warning. The vehicle was towed to an independent mechanic who informed the contact that the cylinder heads were cracked and leaked coolant into the engine. The vehicle was not repaired. The manufacturer was not notified of the incident. The approximate failure mileage was 180,000.
| Vehicle Overheat problems | |
| Engine Exhaust System problems | |
| Engine Burning Oil problems | |
| Coolant Leaking problems |