Truck heating up

Tiny
GILLYMONSTER
  • MEMBER
  • 2006 GMC SIERRA
  • V8
  • 2WD
  • AUTOMATIC
  • 52,000 MILES
What can cause my 4.8 liter gmc sierra 2 wheel drive Pickup to heat up?
Sunday, March 13th, 2011 AT 3:38 AM

6 Replies

Tiny
PROTECH1980
  • MEMBER
  • 901 POSTS
Your not clear, do you mean the engine is overheating?
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Sunday, March 13th, 2011 AT 3:49 AM
Tiny
GILLYMONSTER
  • MEMBER
  • 3 POSTS
Yes it is the engine that is overheating
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Sunday, March 13th, 2011 AT 4:00 AM
Tiny
GILLYMONSTER
  • MEMBER
  • 3 POSTS
I first put a Thermostat and it didn't work. Second I put a new water pump. And still nothing. It's circulating because the heater works. Earlier it would not blow hot air so I thought it was the water pump.
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Sunday, March 13th, 2011 AT 4:08 AM
Tiny
PROTECH1980
  • MEMBER
  • 901 POSTS
Have you checked the coolant level? If low have system pressure tested.
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Sunday, March 13th, 2011 AT 4:09 AM
Tiny
PROTECH1980
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  • 901 POSTS
Disregard that reply we must have overlapped, How do you know the truck is overheating? Are you experiencing any other symptoms or does the truck overheat right away or extended driving?
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Sunday, March 13th, 2011 AT 4:28 AM
Tiny
PROTECH1980
  • MEMBER
  • 901 POSTS
The reason I asked how you know that it is overheating is because GM has a high failure rate on their instrument panel clusters/ gauges inaccurate.
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Sunday, March 13th, 2011 AT 4:52 AM

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