Mystery Vacuume fitting

[1997chevydriver]

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New 5.7 is exactly that. Crate motor from GM Performance. All the exterior parts were either replaced with new, or in this case from the motor in the truck already. Truck has 254,000 on the clock, and no telling if the motor had been swapped at some other time in its life.

Oh. Sorry I thought it was a "new to you" tree fiddy.

 

[metaljunkie]

Mmkay, so it's related to my rear heat. Cool. Thanks for the info and I'm glad I could be of service. I just finished replacing the heads on my 5.7, so I knew I had a good grasp of what was where and where it connects.

Not to derail this thread to far, but my Yukon has rear AC and no rear heat. It has the heater control valve.

 

[Parentnoia]

Not to derail this thread to far, but my Yukon has rear AC and no rear heat. It has the heater control valve.

Well keep in mind, a Suburban has a third row of passengers to deal with. So it may possibly be a Suburban thing, not necessarily a SUV thing.