A faulty crank sensor signal or missing signal would have been picked up by a scan tool so quickly. You led him from a tcc, to an unplugged harness at the transmission (which I have never seen an unplugged harness blow a fuse), to an egr solenoid, to a cannister purge solenoid, almost to an ecm, to an injector relay, and if he haden't found the problem on his own you would have kept him running around. You didn't even have him probe anything until he asked how to check the injector relay. Lol, "expert". You ignored the 1st MOST IMPORTANT SYMPTOM, he had a blown erls fuse. Right there the thing to do would have been get a schematic and go to power distribution of the erls fuse. Then physically check each component for obvious damage, like what he found. And my comment about the scan tool didn't mean for him to buy one I know he can't afford it, just how you know he couldn't afford to throw that many parts at the car without fixing it, lol. It's great that he found the problem, but if it wasn't that obvious
(a broken sensor) than sending it to the dealer would have been the better option than throwing parts at it. I've seen situations where faulty aftermarket parts only compounded the problems a vehicle came in with, all from people getting "free advice" and throwing parts at it. By the way you can check for a crank signal without a scan tool, did you know that? And I didn't grow up working on cars, sometimes that's the problem with some mechanics, they pick up alot of bad habits by the time they get taught the RIGHT WAY TO DIAGNOSE. But to give you benefit of the doubt I commented on this post AFTER the problem had been solved. Let's try another GM electrical problem from the beginning and see who hits their mark 1st, lol.
Friday, March 16th, 2012 AT 2:18 AM
