Crank and no start no fire from coil
- Thread starter shane333
- Start date
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Welcome to the forum.
Check the cap and rotor for the well known problems they have and are you checking "fire"/"spark" at the wire to cap or wire to coil? Remove the cap and rotor and look at the pickup coil wires to see they are all still intact. sometimes those wires can break over time. If any of them are broken, just get a good quality reman distributor. You may also have a failed ignition module.
Check the cap and rotor for the well known problems they have and are you checking "fire"/"spark" at the wire to cap or wire to coil? Remove the cap and rotor and look at the pickup coil wires to see they are all still intact. sometimes those wires can break over time. If any of them are broken, just get a good quality reman distributor. You may also have a failed ignition module.
No fire at coil I can ground the signal wire at the pcm and it will start
Dang grounds. Still check at pickup coil and module plug ins.
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Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
GTRhino24
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I had this issue when I replaced the intake gasket a while back. Turned over but no injector pulse. I was leaning over to check my connections on the distributor and I heard the injectors fire. What? I had placed my hand on the coil to brace myself. Something about the pins on the plugs to the coil were causing it to lose contact. If I wiggled the plugs with the ignition on, I could make the injectors fire. Bent the pins and fixed it.
Standard brand and the good one is acdelco
AC Delco or Genuine GM is best.
Learned that the hard way
That's very sad that Standard Motor Products quality is that bad, used to always be the one you could depend on. They do make 2 different lines now to compete with the junk.
I am very glad I no longer attempt to repair vehicles for my living. I don't see how anyone could stand the failed parts aspect alone forget about the learning curve and the cost of equipment.
GTRhino24
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Just had a service light a few weeks ago followed by bad idle and firm shifts. Made no sense as everything under the hood is brand new. I replaced every sensor and switch not too long ago. Everything was GM/Delco except one. Take a guess at which one failed. The eBay throttle position sensor. But hey, I saved like $20 for a few months!
I bought a non-running 2004 Yukon XL 1500 with a 5.3L V8 in March. Crank no start. Mechanic buddy of mine helped troubleshoot. We tested for ground on coil wire, found no ground continuity to frame. Looked for a while at the various grounds around the engine compartment and he discovered a broken ground wire dead center front bottom of engine. Re-attached ground, cranked right up.
