WHAT IS THE PROCESS FOR REPLACING THE HEATER BY-PASS

  • Tiny
  • Jim Latner
  • 2005 Pontiac Grand Prix
  • 187,000 miles

(formed hard plastic elbow) in a 2005 pontiac grand prix GTP 3800 V-6

Monday, June 11th, 2012 AT 10:36 AM

5 Answers

  • Tiny
  • Wrenchtech
  • Expert
  • 19,584 posts

Where is this part that you're calling a heater bypass?

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Monday, June 11th, 2012 AT 1:35 PM
  • Tiny
  • sdesj31
  • Member

It comes out of the lower intake manifold near the tensioner and is just a right angle plastic piece

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Monday, June 18th, 2012 AT 11:05 AM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,584 posts

Those are plastic elbows for the liquid filled belt tensioner. You will have to remove the tensioner and pieces of those 2 elbows will likely break off inside the block but can be easily removed with a hook of some type. Just make sure you get all the pieces out.

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Monday, June 18th, 2012 AT 11:32 AM
  • Tiny
  • sdesj31
  • Member

A crack in one of those would cause all coolant to leak out?

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Monday, June 18th, 2012 AT 1:03 PM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,584 posts

Of course. It's quite common.

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Monday, June 18th, 2012 AT 1:05 PM

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