Question about 2001 Chevrolet Blazer

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99 chevy blazer overheating

Hi, My 99 blazer all of a sudden started running a little hot, but then would cool back down. Now it gets hot just before the red 260. I can't find a leak, and there isn't any steam or vapor coming from engine. I've added coolant and changed the thermostat today, but that doesn't seem to have solved this problem. I also have no heat blowing out of my vents. Could you help me out. Thanks

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  • bryank2005 Sep 04, 2009

    Thanks for your help...but I'm not an expert on trucks/cars so I really don't understand...could you please explain this to me a little bit more? thanks again.

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  • 115 Answers

The most common problem is the plastic gaskets under the intake felpro makes a steel/rubber replacment

Posted on Sep 04, 2009

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Posted on Jan 02, 2017

  • 104 Answers

SOURCE: I have a 99 Blazer 4X4 LS 4.3L Overheating- coolant leak.

no, the lower intake is leaking(common fault with 4.3)will have to get lower intake gasket changed,there is an up dated gasket for ths from FEL PRO

Posted on Oct 05, 2009

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Rich
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