Question about GMC Yukon
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Posted on Jan 02, 2017
Sounds like you have a Bad ground to the Engine Block,
Add a second Ground to the Engine Block, Every time you hit the Gas the Engine lifts up and you lose ground..
Posted on Feb 04, 2009
Maybe, you can diag yourself with a test light and an ohmmeter. These will cost less at sears than having a dealer diag it. Check fuse 109 in the cab, that's the fuse for the driver's seat module. If that fuse is ok, then check power at the module. It's a little black box under the driver's seat with i think 3 connectors. Back probe the dark green wire at the connector with a test light, you should have power, even with the key off. If not, repair the circuit. Clamp the test light to battery positive and back probe the black wire, if the light does not light, repair that ground circuit. Test the memory set switch by measuring with an ohmmeter points 7 and 2, 7 and 6, 7 and 5 resistance should be less than 5 ohms, if not replace it. If all these tests pass, disconnect the connectors from the module and give 12v to the red and white wire. If the seat moves, have the module replaced at the dealer, it will have to be programmed.
Posted on Aug 10, 2009
check you fluid brake fluid level, and rebleed the system. that should help it out, sounds like you may have air in the line.hope this helps
Posted on Aug 14, 2009
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