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1999 Chevy Tahoe coolant leak

Tiny
TAHO99
  • MEMBER
  • 1999 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 62,000 MILES
Hi I have a 99 tahoe with 62,000 I have replace water pump and upper and lower hoses and I still have a coolant leak I look under the truck and I see coolant at the bottom of the time cover
Sunday, October 25th, 2009 AT 2:58 PM

3 Replies

Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
Remove the timing cover, behind it is located freeze plug or coolant plug . the plug might come off and coolant may leaking from there.New freeze plug woul do the job
plug look like this:


https://www.2carpros.com/forum/automotive_pictures/46384_RHCoolantPlugs1a_1.jpg

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Sunday, October 25th, 2009 AT 4:20 PM
Tiny
TAHO99
  • MEMBER
  • 2 POSTS
It looks like it come from around the intake but not sure
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Sunday, October 25th, 2009 AT 4:33 PM
Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
A coolant pressure test will be need to locate the exact place of the leak. It may be a crack head.
My understanding was under the timing cover.
But, have a coolant pressure done with leak detector would make the job easier.
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Sunday, October 25th, 2009 AT 4:51 PM

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