Engine Overheating Due to Leaking Headgasket on Oldsmobile Aurora

Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket. Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.

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Average mileage: 125,911 (80,000–196,000)
Engine affected: 3.5L V6
8 model years affected: 1995, 1996, 1997, 1998, more1999, 2001, 2002, 2003
12 people reported this problem
3 people shared problem details
Engine water loss. Overheating, Sold it!!
Overheating and leak caused small fire in engine
2001 Oldsmobile Aurora- 3.5L V6196,000
Both my son and I have 2001 Aurora’s, they are great cars for the money on the used car market. I have had mine since 2003 when I bought it with 43K miles on it; it now has 124K miles running strong! Mine son bought his in 2008 with 137K miles on it, this past August I had to put a transmission in when it had 189K miles on it. Now he has 196K miles and developed a coolant leak, it turns out a few of the right bank cylinder head bolts pulled the threads out of the block, this was repaired by using M11 x 1.5 x 30 mm Time Serts; to play it safe we put inserts in all eight bolt holes When I open up the top end on this motor I was very impressed with the condition. The PITA was you have to drop the entire sub frame with the motor and transmission in order to get to anything to work on it, it took me 4 ½ hours in one evening to get it on the ground
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