SPONSORED LINKS

No spark at plugs

Tiny
BOEKELMAN
  • MEMBER
  • 1991 CHEVROLET 1500
  • 25,000 MILES
Healthy spark at coil, no spark at plugs. New distributor cap and rotor and rotor turns when cranking. Tony
Friday, September 27th, 2019 AT 12:48 AM

16 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Check the coil wire and make sure it is sending a spark to the distributor cap. If you have spark at the coil and not the plugs and you have a new cap and rotor, then it sounds like wires.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 1:54 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
There is no spark coming out of cap. Leeds okay. It's like the rotor is sparking at the wrong position never had the dizzy out or adjusted it the car just stopped. Tony
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 2:03 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
It's a Chevrolet 350 1991 Silverado 1500 suburban.
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 2:16 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Got it.

If you have spark coming out of the top of the coil, then the only thing left is the wires themselves.

Roy
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 2:47 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
The wires are okay the timing of the spark seems to to have changed by itself.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 3:03 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Do you have spark into the cap?

Roy
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 5:17 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
Yes, but the rotor and spark don't make spark at the right place anymore or time anymore.
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 5:32 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
So the spark is too far away from the contacts probably in between the contacts somewhere. Tony
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 5:42 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
This could be a bad distributor. The shaft may be worn out.

Roy
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 5:57 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
It happened all off a sudden I thought it was a spark sync pulse change from the timing so the coil sparks at the wrong time now.
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 6:14 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
The rotor has little play.
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 6:16 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You said no spark to the plugs. That's not timing.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 8:03 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
I tested the leads and they are okay.
Was this
answer
helpful?
Yes
No
Friday, September 27th, 2019 AT 12:28 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
How did you test the leads?

What was the resistance especially the coil wire?

Roy
Was this
answer
helpful?
Yes
No
Saturday, September 28th, 2019 AT 3:35 AM
Tiny
BOEKELMAN
  • MEMBER
  • 10 POSTS
It was a worn timing chain it slipped a cog. Thank you for your fast replies and hints Roy.
Regards, Tony
Was this
answer
helpful?
Yes
No
Saturday, September 28th, 2019 AT 3:03 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

So you did have spark after all.

Always glad to help

Roy
Was this
answer
helpful?
Yes
No
Saturday, September 28th, 2019 AT 3:08 PM

Please login or register to post a reply.

Related No Spark Content

Ignition Spark Check
GUIDE
Ignition Spark Check
An engine's ignition system is responsible for igniting the fuel-air mixture inside the combustion chamber and when the ignition process stops the engine will not run....

Sponsored links