97 yukon problems
Asked by James_chevy Aug 23, 2016 at 07:22 PM about the 1997 GMC Yukon SLT
Question type: Maintenance & Repair
Hey guys any help ! So I have a 97 Yukon that had
to get the ignition switch , switched then my engine
light is still on and I ran the computer and it said it
was my camshaft sensor and then now I have
replaced that but now it won't start up is there any
advice someone has thank you
3 Answers
Jame,s to help you need to know two thing,s,are you getting fire at plug,s and fuel at fuel rail?
Check your ground wire to the pcm located on the valve cover post, rear of engine, passenger side. It will break off or be corroded real bad. Disconnect it from that point, i just ripped mine off, and crimp an extension wire to it,,and reground it to the firewall where the engine ground strap is. This fixed my electrical problems on my 2003 yukon. Theres also 2 ground wires located under driver side door, under side chassis, behind running boards, check those for corrosion too. Also, one more ground wire, front bumper drivers side, behind bumper on chassis there are 2 ground wires located there, i removed them,,and reground them to groundpoint inside engine bay with other ground wire from pcm. This WILL fix your problems, and while you are at it, upgrade your factory ground wires for altenator and battery becsuse they are crap.
My radio quit working my windows quit working everything electrical quit working my C quit working what cars it
