Air bubbles in radiator with engine running, sweet smell coming from exhaust pipe, overheating, coolant in oil, white foam on underside of oil cap, and low compression on one or more cylinders.
Check your exhaust while running, smells sweet and blueish smoke. Overheating, loss of coolant. Do a compression check.
Sounds like you blew your head gasket Sounds like you blew your head gasket
The 2014 GMC Sierra-1500 has 42.4 in. of front head room.
Neither. Have a new head gasket installed. That is assuming you did not completely ruin the engine by continuing to drive it after the head gasket blew. If you did indeed ruin this engine, then the decision should be based on what the car is worth in the first place.
The 2011 GMC Sierra-1500-Hybrid has 40.6 in. of rear head room.
The 2013 GMC Sierra-1500-Hybrid has 40.6 in. of rear head room.
The 2009 GMC Sierra-1500-Hybrid has 41.5 in. of front head room.
The 2012 GMC Sierra-1500-Hybrid has 41.5 in. of front head room.
The 2012 GMC Sierra-1500-Hybrid has 40.6 in. of rear head room.
The 2009 GMC Sierra-1500-Hybrid has 40.6 in. of rear head room.
The 2013 GMC Sierra-1500-Hybrid has 41.5 in. of front head room.
The 2010 GMC Sierra-1500-Hybrid has 40.6 in. of rear head room.