86 L98 Won't Start

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Mar 16, 2008 | 03:29 PM

#21

3D-Aircrew

Thread Starter

Melting Slicks

Joined: Nov 2007

Posts: 2,830

Likes: 147

From: Gainesville FL

It's back to not starting again

I got my timeing light on it and I'm definitely not getting spark pulses.

So no spark for some reason. I just drove it today so it's quite intermittent. Any Ideas?

Last edited by 3D-Aircrew; Mar 16, 2008 at 03:40 PM.

Mar 16, 2008 | 04:13 PM

#22

1989vette

Burning Brakes

Joined: Aug 2007

Posts: 915

Likes: 0

From: salinas ca

Quote:

Originally Posted by rharker

I got my timeing light on it and I'm definitely not getting spark pulses.

So no spark for some reason. I just drove it today so it's quite intermittent. Any Ideas?

have you checked the ignition module?

Mar 16, 2008 | 04:20 PM

#23

rick lambert

Le Mans Master

Joined: Oct 2003

Posts: 6,130

Likes: 2

From: seattle WA

Pull the ignition control module, take it to any Autozone and they'll check it, you may want to pick up a coil while you're there.

Mar 17, 2008 | 03:32 PM

#24

3D-Aircrew

Thread Starter

Melting Slicks

Joined: Nov 2007

Posts: 2,830

Likes: 147

From: Gainesville FL

Good Idea ... What's it look like?

For that matter where is the ICM? Pictures would be nice if anyone has any. Total vette Noob here.

Also if this thing were bad or intermittent would it cause the engine to quit while running because that's something that has never happened. It only has failed to start and never quit while running.

Mar 17, 2008 | 08:40 PM

#25

hexane

Melting Slicks

Joined: May 2007

Posts: 2,382

Likes: 2

From: Kathleen FL

Quote:

Originally Posted by rharker

You take the cap and rotor off the distributer and you shall see a black module that should say "GM" on it. That is the ICM.

So the car quit running when at idle or on part throttle accelerating? Hmmm, I'm thinking you should get the ICM tested at Autozone.