20 Most Recent 1999 GMC Yukon - Page 9 Questions & Answers

If the rear is working well and front is not I would suspect a blend door or actuator issue in the front.Double check and see if you can hear anything moving when you are adjusting temperature from hot to cold.Also check and make sure the air flow moves properly from defrost to vents and floor etc.

1999 GMC Yukon | Answered on Oct 10, 2012

CYCLING SWITCH IN THAT YEAR MODEL IS USUALLY LOCATED IN THE COMPRESSOR ITSELF,USALLY HAS A 1 wire button type wire connection on top of compressor. it's held in by a snap ring

1999 GMC Yukon | Answered on Oct 10, 2012

This is common , the problem will be low fuel pressure due to weak fuel pump. this can be check with a fuel pressure tester, the fuel pressure regulator could be bad, thats located inside the upper intake, and last spider injection system.

A fuel pressure tester can answer and slove this problem, i will bet it is a weak pump, the pump will run the truck but will not start it, sounds crazy but ture, all it takes is about 3 to 4 psi low and it will not start, it may also be a bad pressure leak down valve which is part of the fuelpump, good day

1999 GMC Yukon | Answered on Sep 30, 2012

Sounds like two different problems.
I would have the engine computer checked for trouble codes and the body computer for ABS codes.
The brake problem could be the master cylinder, the gas smell could be a fuel leak or a problem with the venting system for the gas tank.

1999 GMC Yukon | Answered on Sep 09, 2012

change distributor. this year model is easy. there's only one way to put distributor in/only goes in as long as you note position of rotor and set it back in with rotor pointing the same direction , no timing adjustment on it, it's controlled electronically.

1999 GMC Yukon | Answered on Aug 26, 2012

cps is on timing chain cover underside

1999 GMC Yukon | Answered on Aug 07, 2012

Try and see if any dirt is caught up in where you clip in seat belt if that doesnt work you might have a short some where.

1999 GMC Yukon | Answered on Jul 30, 2012

This could be something as simple as a misfire or you could have killed your ******. Was the check engine light flashing when this was happening

1999 GMC Yukon | Answered on Jul 30, 2012

if you are looking for the ac oriface tube for the ac it is inside the smaller line look near the connections for a crimped section about 3inches from the connection

1999 GMC Yukon | Answered on Jul 01, 2012

I am sorry but I regret to say that Fixya.com doesn't have any wiring diagrams available for free downloading due to copyright laws. You can however gain access to the factory service manuals and wiring diagrams and all factory service letters at this site for a modest subscription fee I am told.

1999 GMC Yukon | Answered on Jun 28, 2012

your solenoid is stuck or your ignition switch (mounted on column not key)is bad

1999 GMC Yukon | Answered on Jun 26, 2012

There is not such flasher module available, this uses an electronic flasher. The old ones where a mechanical heated metal design and louder ones where made.

1999 GMC Yukon | Answered on Jun 15, 2012

Not finding what you are looking for?

925 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

2004 GMC Yukon
2004 GMC Yukon

501 Questions

2001 GMC Yukon
2001 GMC Yukon

300 Questions

2007 GMC Yukon
2007 GMC Yukon

319 Questions

1996 GMC Yukon
1996 GMC Yukon

233 Questions

2005 GMC Yukon
2005 GMC Yukon

248 Questions

Top GMC Experts


Level 3 Expert

85223 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Yukon GMC

  • Yukon GMC

Most Popular Question

1999 gmc yukon 5 7 hesitation misfire

  • Cars & Trucks