Question about 1999 GMC Yukon Denali
The security system is known to fail in a lot of gm cars. ive had it happen to me. I used this to bypass it and you can do it yourself http://vatspasslockpasskeysecurityhelp.com/ I did mine 2 years ago and I haven't had any issues.. Hope this helps Do It Yourself GM Security bypass
Posted on Dec 06, 2014
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Posted on Jan 02, 2017
WOW sorry to hear that.
this is a common problem with the 4l60e transmission, what has happend is the gear has sheared off the back of the sun shell, you should have lost reverse and if you will watch your tachometer the next time you drive you will notice you allso lost forth gear.
you will nedd to have the transmission removed and disassembled for the new sun shell, make sure you get the hardened sun shell, this is not a rebuild but simply a repair. you can get a stock sun shell for about $65.00 or a heavy duty one for about $100.00, make sure you find a good tranny guy to provide the labor, oh the transmission paper rubber kit "reseal kit" shouldnt be more than about $80.00
Posted on Jun 14, 2009
on these models on the harness that plugs into the fan switch goes bad, I changed the switch and found this harness melted together on my 99 yukon
Posted on Jul 19, 2009
Hi, The most common cause is low refrigerant,you can get a recharge kit at your local auto parts store.thay come with how to directons. Thay run about $50.If you do it yourself be sure to buy the kit that has a guage on it.The system may take more refrigerant than what you get in the kit,but you can buy an extra can. hope this helps you. thanks for using fixya.please rate my post. Thank You,iluv2fish. Ray....
Posted on Jun 24, 2010
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