Question about 2003 GMC Envoy

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Where do the 2 vacuum lines go to from the top of a transmission on a 03 envoy slt 4.2 L 2wd

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6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Anonymous

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SOURCE: 2002 mercury cougar vacuum line off the top of transmission

The hose connects to the top of the transmission, underneath the car's battery (you'll have to remove the battery to see the connection site). It's important that this hose, once reconnected, does not does not get crimped. If the hose is not free to "breathe" pressure buildup in the transmission can cause fluid to pour out of the fill point (where the dip-stick goes).

Posted on Apr 26, 2010

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Stoney Thompson

  • 433 Answers

SOURCE: on my 03 envoy 4x4

vaccum actuator on the frontend is malfunctioning... check the electronic connection, as well as the vaccume hose running to it, if its cracked, or unhooked it wont engauge in 4 wd.. these actuators are terrible with this problem.. hope this helps you.

Posted on Dec 08, 2010

wencal1963

Wendel Callender

  • 153 Answers

SOURCE: 03 envoy SLT 4.2 eng. Miss firing in #5 Engine is

A BAD COIL PACK WILL CAUSE THIS PROBLEM.NOT LETTING ALL CYLINDERS FIRE WILL CAUSE ENGINE TO KNOCK.

Posted on Jan 14, 2011

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On my 03 envoy 4x4 slt, my service 4wd light came on and of course i can't shift into 4 wheel. what is the most!!!! likely problem? thank-you.


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