2007 GMC Sierra Overheating Damage

GERMJOE2000

MEMBER
2007 GMC SIERRA
V8
4WD
AUTOMATIC
38,000 MILES

What temperature will damage engine parts. Is there a way to determine if there is damage to engine parts after overheating?

Saturday, April 3rd, 2010 AT 9:51 PM

4 Replies

JACOBANDNICKOLAS

MECHANIC
108,269 POSTS

As far as the temp, it really deals with what conditions the engine is under. Will the engine still start?

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Saturday, April 3rd, 2010 AT 11:14 PM

GERMJOE2000

MEMBER
2 POSTS

Yes, The engine will start.I was just curious to know what temp the cylinder heads would start to warp at. I hadn't had a chance to take the snowplow off and there was a record high temperature and my engine over heated.

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Sunday, April 4th, 2010 AT 7:10 PM

JACOBANDNICKOLAS

MECHANIC
108,269 POSTS

THey shouldn't warp until you are over 150+ degrees. Even at that point, there is a good chance a head gasket will go but the heads will be fine. If they are warped, you can have them machined.

Let me know if you have other questions.

Joe

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Sunday, April 4th, 2010 AT 11:13 PM

JACOBANDNICKOLAS

MECHANIC
108,269 POSTS

THey shouldn't warp until you are over 250+ degrees. Even at that point, there is a good chance a head gasket will go but the heads will be fine. If they are warped, you can have them machined.

Let me know if you have other questions.

Joe

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Sunday, April 4th, 2010 AT 11:13 PM