Won't start issue
Thread Starter
6th Gear
Joined: Apr 2015
Posts: 6
Likes: 2
Won't start issue
Hello everyone I have a 1996 with the LT1 automatic it died on me the other day on the road had to have it towed home since then I checked and diagnosed what I could I didn't see a spark from the opti distributor so I replaced it much work had a really hard time with the harmonic balancer anyway at this point it didn't have spark after I changed the distributor so now I have replaced the ignition coil and the ignition control module it's still no spark at all I'm hoping someone may have some advice I certainly would appreciate it if anyone could give me a which way I need to go on it the engine was running fine and then it just died and now it's still dead LOL it cranks batteries good I have power to the ignition and I do have a pulse off the new distributor thanks very much any help with your appreciated
Thread Starter
6th Gear
Joined: Apr 2015
Posts: 6
Likes: 2
I have 40 lb fuel pressure on the fuel rail check it with a gauge I'm basically I took an a good spark plug and plugged it into a wire and set a good ground on it and no spark same thing at the coil wire I am really befuddled on this one I am getting a pulse out of the Opti the coil ohm out to be shorted so I replaced that of course I already replaced the Opti and replaced the ignition control module and I still have no spark anywhere but I am getting a signal from the Opti I am completely lost I've owned three C4s over the past 20 years and this is the first one that has got me stumped
Thread Starter
6th Gear
Joined: Apr 2015
Posts: 6
Likes: 2
Just a little bit of history on the car somebody ran at 99,000 miles with the last oil service I have all the paperwork when I bought the car in 2006 and then someone put a brand new set of tires on it in 2007 and when I bought it it had $107,000 miles now it's had 114 and I've never had a bit of a problem out of it starting or running it's just been perfect it's a convertible I just put a new top on it with a stripping headliner and of course I put a brand new set of tires on it when I bought it and now it won't run
Pro
Joined: Jul 2023
Posts: 535
Likes: 279
From: Marysville WA
Maybe this?
I don't have any personal experience with this issue but the PO of my new to me '84 had a similar experience and it turned out that a fusible link was blown.
Last edited by typical boomer; Nov 21, 2023 at 11:04 PM. Reason: grammer
Thread Starter
6th Gear
Joined: Apr 2015
Posts: 6
Likes: 2
Just wanted to let everybody know that when I checked the old coil it appeared to be shorted I've had already bought a new one and a new ICM ignition control module already had put a new Opti spark on it it turned out to be the coil fuse the fuse for the coil I guess the coil was completely shorted out inside anyway put a new fuse in it new coil on it got in it hooked the battery back up got in it turned the Key and she fired her right up
