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did you check the alternator??
I have a Scytek alarm in want to insall on my 99 Yukon without instruction
Repair whatever is ailing the engine. That light is telling you something, have the codes read and find out what it is and repair it.
If the computer and the security system is not communicating correctly the security light will come on in a 1999 Chevy Suburban. Starting the car with a spare key may offer a quick fix.
How to overide security system that causes no fuel to motor in 99 Chevy suburan 1500 4wd security light flashes when it goes solid it starts nut takes 20 mins of turning on and off
How to overide security system that causes no fuel to motor in 99 Chevy suburan 1500 4wd security light flashes when it goes solid it starts nut takes 20 mins of turning on and off
Left side at the bottom.
Take it to a professional
The PCV valve on a 99 GMC Yukon is found in the left valve cover. It allows trapped gases inside the engine to be recirculated and reused.
back up a few feet
Gm does not use inertia switches.
The Passlock security system is the problem. Should be recalled. Go here http://newrockies.com/?ap_id=craigpeate for a module to bypass the system completely. The resistor workaround at the key isn't always the only problem. I tried it on my 99 Suburban and it didn't do any better with the resister bypass. You need to eliminate the entire security system. Buy the pro module for $179 plus shipping and save yourself the hassle of dealing with it ever again.