2007 GMC Sierra Overheating Damage

2007 GMC SIERRA
38,000 MILES • V8 • 4WD • AUTOMATIC
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GERMJOE2000
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What temperature will damage engine parts. Is there a way to determine if there is damage to engine parts after overheating?
Apr 3, 2010 at 9:51 PM
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JACOBANDNICKOLAS
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As far as the temp, it really deals with what conditions the engine is under. Will the engine still start?
Apr 3, 2010 at 11:14 PM
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GERMJOE2000
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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.
Apr 4, 2010 at 7:10 PM
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JACOBANDNICKOLAS
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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
Apr 4, 2010 at 11:13 PM
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 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
Apr 4, 2010 at 11:13 PM