Question about 2006 GMC Sierra
Within four miles of leaving work yesterday, the "Engine Overheating" warning display came on in. The temperature gauge showed 260 degrees. I pulled over and let the engine idle and it quickly cooled to about 220 degrees. I opened the hood and the coolant reservoir cap was gone and coolant had blown out the top of the reservoir tank. The cap either was left off from servicing weeks ago or was loose and somehow came off. There was no damage to indicate that it had blown off. The reservoir was empty of coolant. The temperature gauge remained at 220 degrees however the heater was not blowing warm air indicating that the coolant level was low in the engine. There has been no indication of coolant leakage, overflow, or consumption ever for this truck with 172,000 miles.
I added 1 gallon to the reservoir to bring it up to the normal level and replaced the cap. I drove home with no problems.
Was this problem due to the cap being gone or is there a deeper root cause that needs to be addressed?
This was caused by the cap being gone, there is zero doubt of this, I hope u have not damaged the cylinder head gaskets, time will tell.
Posted on Jan 24, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 06, 2016 | 2011 Subaru Outback
May 21, 2014 | Cars & Trucks
Jun 22, 2012 | 2004 Kia Sedona
Apr 30, 2011 | Subaru Legacy Cars & Trucks
Feb 05, 2011 | 1996 GMC Sierra
Sep 04, 2010 | 2004 Volkswagen Touareg
Apr 03, 2009 | 1999 GMC Jimmy
285 people viewed this question
Usually answered in minutes!