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Fluctuating engine temperatures

Tiny
GERALD COOPER
  • MEMBER
  • 2000 CHEVROLET S-10
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 19,000 MILES
Normal heat for ten minutes then temperature gauge rises above 210 an then turns to complete cold air, radiator cap cold after driving.
Wednesday, October 26th, 2016 AT 8:02 PM

3 Replies

Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
I would recommend you start with replacing the thermostat. You can verify that by checking when it is hot. If the upper hose is hot and lower hose is cold then the thermostat is sticking. Let us know how that works out.
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Wednesday, October 26th, 2016 AT 8:40 PM
Tiny
GERALD COOPER
  • MEMBER
  • 2 POSTS
Found out about a quart low on antifreeze refilled purged and then drove Or three hours everything seemed OK no leaks ran two blocks after warming up the next morning Have water coming out of the side seal of lower intake manifold ABS light came on RPMs shut up till about 3000 seem like didn't want to shift should I replace any sensors while attempting to put gasket on manifold?
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Sunday, October 30th, 2016 AT 12:43 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,664 POSTS
I would do the intake gasket first it could be causing all of your problems.

Please let us know what you find so it will help others.

Best, Ken
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Monday, October 31st, 2016 AT 10:16 PM

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