Question about 2000 GMC Jimmy
Does the word security stays flashing after you crank the engine? if it does vehicle has a problem with the passlock 2 system which is a factory installed anti-theft system. when faulty which is too common on those year GM models, vehicle will start and run for 2 or 3 seconds and die out. follow this procedure: 1) locate yellow 20ga. wire running out of steering column which will run along with heavier gauge wires. correct wire will be thin compared to the main ignition wires. 2) cut wire and connect an in line toggle switch and leave in on position. 3) put key in ignition and move forward and leave it that way for approximate 15 min. or until security light goes out. 4) as soon as light goes out vehicle should start. if it does not crank engine again until it starts. 5). when engine starts flip toggle switch to the off position then security light will come on. done. passlock system is bypassed. security light will stay on constant but vehicle will no longer leave you stranded.
Posted on Mar 14, 2011
Several things come into play here ! Do you have fuel pressure , do you have spark and do you have injector pulse ! This is the time of year i see this question a lot ! Start with the fuel - can you hear the fuel pump run with just the key turned on if yes you will need a fuel pressure gauge to get the pressure reading. , second - spark - pull a plug out and insert it back into the plug/coil wire and make sure the plug is against a metal ground and turn the engine over and obsevre to see if there is spark ? Injector pulse can only be checked with a noide light wich can be purchased at your local parts place - unplug one of the injectors and plug in the noide light and turn engine over - it should flicker on and off ! Thense are the basics and if any fail they will need expert diagnosis with more equipment - also check to see if you have any c
Posted on Mar 14, 2011
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Posted on Jan 02, 2017
SOURCE: 2000 gmc jimmy wont start
I also had this problem with mine. There's a main power cable that runs to the battery. The bolt was completely corroded, so there was no connection = no power to start the truck. Check that, it'll cost ya less than 5 bucks to fix.
Posted on Jan 16, 2009
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