Question about 1987 GMC V1500
I did a tune up, new spark plugs, plug wires, distributor cap and rotor, went to start and it would not fire up, but would turn over. Checked and re-checked my work, re-installed all old stuff except plugs. Checked coil for defects reference haynes manual. measured resistance of the plug wires and the old bosch wire had a resistance ten times lower than the new carquest ones. ex; coil wire to the distibutor cap 8 inches in lenght, bosch 500 ohms car quest 4500 ohms and the same ratio for the rest of the wires longer wires higher resistamce. Did I blow something THis problem has never happened in seven years. I'm stumpped???
Well, if it was running prior to your replacing the plugs, then somewhere you went amiss. Check the firing order. If when you crank the engine over and it pops and backfires then you have a few plug wires mixed up. Other than that the other item to check would be the rotor button in side the cap. Is it lined up correctly or broken? Good luck.
Posted on Feb 07, 2009
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
Tips for a great answer:
Sep 12, 2014 | 1998 GMC Jimmy
Jul 09, 2014 | Cars & Trucks
Apr 12, 2011 | 1997 GMC Sierra
Feb 10, 2010 | GMC Sierra 2500 Cars & Trucks
Feb 03, 2010 | 1994 GMC Jimmy
Nov 04, 2009 | 1999 GMC Jimmy
Aug 03, 2009 | 1994 GMC Sierra
Nov 30, 2008 | GMC Safari Cars & Trucks
Oct 20, 2008 | 1987 GMC Jimmy
202 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: