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1987 monte carlo ss

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New User

Sep 8, 2005, 11:31 AM

Post #1 of 7 (3424 views)
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Not sure if someone can help me. I have a 1987 Monte carlo ss. We are having a very weird problem with it. Sometimes it starts and sometimes it doesn't. No spark. Turn the key and nothing. Battery is not dead, wont turn over even if you try to jump it and lights and such work. Then if you let it sit for awhile(sometimes hours sometimes over night) go out it fires right up. Thought maybe neutral safety but mechanic says no. Thought maybe voltage reg. nope not it either. So we are stumped. Any ideas? Thanks so much

Veteran / Moderator

Sep 8, 2005, 2:01 PM

Post #2 of 7 (3419 views)
Re: 1987 monte carlo ss [In reply to] Sign In

Can you clarify whether the engine has no spark or is the engine not cranking?

No spark. Turn the key and nothing.

Canadian "EH"

New User

Sep 8, 2005, 3:34 PM

Post #3 of 7 (3413 views)
Re: 1987 monte carlo ss [In reply to] Sign In

It does nothing..... You turn the key and it is like it is completly dead.. No spark no crank nothing.... But the battery is good cause I have full power lights and such and jumping does no good...

Tom Greenleaf
Ultimate Carjunky / Moderator

Sep 8, 2005, 6:42 PM

Post #4 of 7 (3409 views)
Re: 1987 monte carlo ss [In reply to] Sign In

I'm curious how you know there's no spark if the engine does't crank? From what I've seen so far I suspect the electrical connections at the starter - even the little one to the solonoid, and the battery, and the ground that should go right to the engine block. Could just be a starter motor? Suggest that the connections be ruled out anyway.

If you really have no spark I would think this car would just quit while driving too.

Intermittent problems are a pest because you are not sure whether you fixed it or it's back to running. Only time will tell if it doesn't happen again. Good luck and please let us all know when you find the answer,
Long retired now

New User

Sep 8, 2005, 7:30 PM

Post #5 of 7 (3403 views)
Re: 1987 monte carlo ss [In reply to] Sign In

Ruled out starter and connections already by replacing all. Did have a problem with it dying while driving and thats what sparked the modulator and starter replacement. The weird thing about all this is that you can start it drive it and then park it for any amount of time come back out and it wont start. Then let it sit for awhile or over night come out and it fires right up. And it doesn't happen all the time. It is very spuratic.


Sep 8, 2005, 9:02 PM

Post #6 of 7 (3400 views)
Re: 1987 monte carlo ss [In reply to] Sign In

my honda had the same problem of not starting sometime after it sat for a sec or so then it completly quit one day and wouldn't start I took it to the shop and it was a bad ignition control module.

just a thought.

Tom Greenleaf
Ultimate Carjunky / Moderator

Sep 9, 2005, 1:44 AM

Post #7 of 7 (3393 views)
Re: 1987 monte carlo ss [In reply to] Sign In

I feel bad for you - we are trying but this one is tough.Crazy

To refresh: This is a problem where both starter and spark quit - new starter and module, and has quit while running. Left alone a while it behaves again???? Doesn't do this all the time??

Here's a few shots in the dark............

1. An old anti-theft system not working properly or not carefully removed.

2. Ignition switch? It's the only common item to both that I know of for 1987.

3. There is a wiring block - I think driver's side where all the wires come into interior of car. If I recall they are all spade type connections and it will just pull off after a fastener is removed. Not exact but had that problem just once with a GM Van about your year. I was lucky with that one as it stayed broken down and could find a fault with a silly test light.

Keep at it,
Long retired now

1987 monte carlo ss

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