94 se wont start - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-08-2005, 12:53 AM   #1
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Default 94 se wont start

Hi Everyone,
My 94 SE NA waterpump failed last night and sprayed coolant all over the belt side of the engine. I was able to make it home but I did not try to restart it then.
I spent today replacing the old pump with a new one, disconected the negitive battery cable, replaced the old belt with a new one, cleaned and replaced all ground connections that I had removed and added a small shot of Dielectical grease to each of the pin connections of the coil pack plugin and reconnected the plug to the coil pack.. Now my problem is that it will crank and crank but it will not fire. Any thoughts to what I may have missed or was anything damaged(electicaly)when the coolant
sprayed on the engine?
I would apprecate any guidence you may have to offer.
Thank you.
Aubie
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Old 06-08-2005, 10:37 PM   #2
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That much water may have shorted something... Check for spark at each plug.
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Old 06-08-2005, 10:52 PM   #3
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The coolant shouldn't have had any effect. Check all the grounds and connections to the coils again.

Somedays all it takes is one ground hiding behind something to ruin the day.
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Old 06-09-2005, 12:39 AM   #4
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Default 94 se wont start

Hi Bill and Damemorder,
I did remove the Alt and coil bracket mount again today to see if anything was not connected. Alas such was not the case. The suggestion to check for spark at each plug is a good one, is there a safe way to do that with out damaging say the ICM or PCM or any other electronics? If there is anything else that comes to your minds would you let me know, I would appreciate even remote possibilities as right now I am stumped. Thank you for the responses.
Aubie
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Old 06-09-2005, 01:40 AM   #5
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do the caveman approch start hitting with a sledge until it is complete broke or it will start lol
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Old 06-09-2005, 02:03 AM   #6
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Masterbm,
Your trying to tempt me arn't you?
Aubie
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Old 06-09-2005, 08:24 AM   #7
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Default Re: 94 se wont start

Quote:
Originally Posted by Aubie
Hi Bill and Damemorder,
I did remove the Alt and coil bracket mount again today to see if anything was not connected. Alas such was not the case. The suggestion to check for spark at each plug is a good one, is there a safe way to do that with out damaging say the ICM or PCM or any other electronics? If there is anything else that comes to your minds would you let me know, I would appreciate even remote possibilities as right now I am stumped. Thank you for the responses.
Aubie
Aubie..there is actually a tool made for checking spark. (not sure if you already did) It looks simiilar to a test light and plugs in between plug and wire. Parts stores shoud have them. It'* a nice safe way to check spark. You mentioned something in your first post about coil connections. If you meant you unplugged the coils from their connection to the computer (versus just plug wire connections) I'd say take those connections back apart and look at them for corrosion and or bent pins.

Didn't sound like you did much and now you are missing spark or fuel. Hey..here'* another one. Could your car be flooded? If so hold the pedal to the floor and crank it over. That'll turn off the fuel and allow it to fire.
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Old 06-09-2005, 07:51 PM   #8
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Hi Bill,
I took your advice and I did purchase an inline spark tester that goes between the coil and spark plug, and there is no spark coming from the coil to the plugs. I did a sample test on a running vehicle and the tester does work. Yesterday I removed the bracket that holds the coil pack to the frame. The pins inside were all straight and the female end of the plug appears to be fine with no signs of corrosion or crushed connections.
So everything is back together with no other problems than my radio is locked because of removing the Neg terminal and I don't have the code and the dealer requires that I drive it in before they can get the code, but I deal with that when I get it running.
If you or anyone have any idea as to why my coils won't send spark, ICM ,PCM or anything that might also be the cause I would sure appreciate it.
Thanks again,
Aubie
P.*. I do agree with you that sometimes it can be just the simplest thing that can be the culprit, I just haven't advanced to "simple" yet
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Old 06-10-2005, 12:18 AM   #9
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It may be a bad ground where the ICM bracket mounts to the engine, all of the engine grounds are right there. The ICM ground through the back of it to the ICM bracket. I suggest some cleaning in those areas.
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Old 06-10-2005, 02:01 AM   #10
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Hi Damemorder,
Getting the bracket and surrounding hardware off is becoming a no brainer for me SOOO I'll remove them again to look for anything that made impede a good ground connection. Before my first reassembling I had used emery cloth to scuff away any corrosion on all of the terminal connections and applied dialectal grease to them before reconnecting everything.
I count three different ground connections coming from the harnesses plus one more for the Neg ground terminal from the battery that connect (bolt) to the bracket that hold the ignition coils to the engine. If you know of any I might have missed I will Gladly, and sheepishly, disassemble as much as I need to get it (them) back on
Thanks again,
Aubie
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