Question about GMC Jimmy
Posted by Anonymous on
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
You are jumping to conclusions. Slow down.
No spark AND no injector pulse indicates none of the desired outputs were triggered. The ignition module makes spark when it receives a crankshaft position sensor signal, and then transfers control of that spark to the computer after it starts. The module takes its crank sensor signal and generates an RPM count that it forwards to the PCM(main computer) which is used for triggering the injectors and controlling timing. SO, if you had a bad crank sensor OR a bad ignition module, you could lose both spark AND fuel. a coil would not disable injector pulse. modules RARELY fail in a manner that disables RPM reference to the computer causing it to not fire the injectors...At this point, I would TEST the crank sensor as the next step. If its easier, 1 of the wires on the module goes directly there so you can test the crank sensor at the module.
Posted on Sep 18, 2009
Testimonial: "great info, thanks!"
Tips for a great answer:
Jul 05, 2015 | GMC Cars & Trucks
May 13, 2015 | GMC Cars & Trucks
Feb 02, 2014 | 2006 GMC Sierra
Dec 23, 2013 | Cars & Trucks
May 25, 2012 | Cars & Trucks
Feb 02, 2010 | 1990 GMC Sierra
Oct 06, 2009 | 1995 GMC Sierra C1500
Sep 18, 2009 | 1990 GMC K3500
Aug 31, 2009 | 1990 Chevrolet Celebrity
Apr 19, 2018 | GMC Cars & Trucks
30 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: