Engine will not crank, lights,radio,etc. all work - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-12-2009, 12:10 AM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Crece's Avatar
 
Join Date: Mar 2009
Location: Richmond,Va.
Posts: 342
Thanks: 0
Thanked 0 Times in 0 Posts
Crece is on a distinguished road
Red face Engine will not crank, lights,radio,etc. all work

It all started last night when I decided to go outside and mist the plug wires to see if they were shorting. (I am in the process of trouble shooting a p0740 code) I saw now sparks so I decided to take it out for a spin. All was well for the first fifteen minutes or so then I decided to kick it down a notch. The engine started to miss a little so I backed off before it downshifted. I tried several more times with the same result and the SES light came on. I stopped, turned off the engine, started it up and there was no check engine light and it ran normally at WOT. Went home and pulled the codes. They were P0321 (ign problem, 18x interrupts lost signal). Also, P0361 which I think should be 1361 (elec spark timing, elec not toggling) And of course the P0740 but again, that is being addressed in another thread. So, this morning I decided to pull the coil packs and clean the plates beneath the ICM. (Now here comes the dumb part, laugh if you must cause I would do the same for you) I applied dielectric grease to all of the wrong places thinking that it was conductive. Since it didn't start I disassembled everything and cleaned it up with electric component cleaner. Still no crank. Went back in and cleaned everything, both sides of the plates, screws, whatever with a wire wheel and Dremel. reassembled. No crank. The pos battery cable was corroded down inside where the ends attach to the cable. Used a lot of cleaner and compressed air. So, now that you've caught your breath, any ideas on which way to approach this problem.
Crece is offline   Reply With Quote
Old 06-12-2009, 12:54 AM   #2
Senior Member
Posts like a Turbo
Thread Starter
 
Crece's Avatar
 
Join Date: Mar 2009
Location: Richmond,Va.
Posts: 342
Thanks: 0
Thanked 0 Times in 0 Posts
Crece is on a distinguished road
Default

Oops, should read (Saw no sparks). Is this in rght location?

Last edited by Crece; 06-12-2009 at 12:59 AM.
Crece is offline   Reply With Quote
Old 06-12-2009, 08:58 AM   #3
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Problem is..you didn't list what the P0740 is.. didn't put this in the other thread... not to complain. but I'm leaving this thread to go find the original issue with the car in case it'* relevant. See ya in a few

Back. P0740 is a TCC clutch failure.

Probably not relevent.

Being that you did the removal and install only w/o actually disturbing much..it'* odd. Although the codes you mention would point us to the crank sensor or wiring leading from the ICM to the crank sensor. A crank sensor can cause stalling and no starts.

Only two things you could have potentially done in gooping and degooping is put wires on in the wrong order or leave the ICM connector (gray and in front) unhooked. Leaving the connector unhooked is a sure way to have no start. And the only issue I have with that is your title is .. "won't turn over" which means the starter is not working and the engine does not turn over or try to start.

More info on those last to thoughts would be great. If it does turn over and not start, I'd aim for ICM connector/crank sensor. If it doesn't turn over, it'* be checking the starter and it'* connections to the battery.
BillBoost37 is offline   Reply With Quote
Old 06-12-2009, 10:25 AM   #4
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

OK, you say the car does not crank, so I assume it'* not turning over. Is there a click at the starter? If you try to jump the car does it crank? The answer to this will determine what to clean. No crank with jump, clean battery cables opposite the battery. Crank with jump, clean at battery post. There is also a possibitly the battery cable is bad.

Here are two tests that might help.
https://www.gmforum.com/t279492/
https://www.gmforum.com/t279494/
Danthurs is offline   Reply With Quote
Old 06-12-2009, 10:42 AM   #5
Senior Member
Posts like a Turbo
Thread Starter
 
Crece's Avatar
 
Join Date: Mar 2009
Location: Richmond,Va.
Posts: 342
Thanks: 0
Thanked 0 Times in 0 Posts
Crece is on a distinguished road
Default

Thanks for the quick reply Bill. When I turn the key there is no response from the engine. I suspect that I am overlooking a connection. I did reconnect the ICM but I'm going to go over it all again today. I also have a 94 Park Avenue so I can compare all of the connections.
Crece is offline   Reply With Quote
Old 06-12-2009, 10:45 AM   #6
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

If the engine is not cranking it'* not the ICM. Check the connection at the starter. Try the tests I listed.
Danthurs is offline   Reply With Quote
Old 06-12-2009, 10:45 AM   #7
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

There should be one connection to the negative terminal of the battery and two at the postive terminal. There have been a couple times where the second positive tried to fall down and hide on me.

Hopefully it'* an easy one. I'd suspect either that cable or a starter. You can check the starter after the cable by having someone turn and hold the key while you hit the starter with a hammer etc... if the car starts..it'* a bad starter.
BillBoost37 is offline   Reply With Quote
Old 06-12-2009, 10:55 AM   #8
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Another good suggestion Bill. Leave the ICM alone now. That'* not the problem.
Danthurs is offline   Reply With Quote
Old 06-12-2009, 10:59 AM   #9
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Ya know...talking about cables reminded me of another thing.

Early on in this body style etc..call it around 1988 the ICM and coils got their ground from the plate and engine. Around 96ish, GM added a ground to the ICM connector and the ICM no longer requires a good connection to the engine for a ground.

Sooo cleaning the plate after 96 is nice, but not actually necessary.
BillBoost37 is offline   Reply With Quote
Old 06-12-2009, 01:08 PM   #10
Senior Member
Posts like a Turbo
Thread Starter
 
Crece's Avatar
 
Join Date: Mar 2009
Location: Richmond,Va.
Posts: 342
Thanks: 0
Thanked 0 Times in 0 Posts
Crece is on a distinguished road
Default

Danthurs, I didn't see your post when I replied this morning but you guys were right on the money. I did try to jump it last night but no go so yes it was the connection opposite the battery.Thanks for all of the excellent suggestions. It was the negative battery cable that connects underneath the plate. Last night when I should have been sleeping it occurred to me that I had seen a large cable grounded beneath the ICM plate so that is the first thing that I checked this morning. It had fallen down into the engine compartment and I assumed incorrectly that it was connected further down on the engine. I reattached it and it started right up. Thanks again guys.

Older Bonnies, nice to have; troubles, goes with the terrirtory; this club forum, Priceless

Last edited by Crece; 06-12-2009 at 01:10 PM.
Crece is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2005 Cavalier no instrument lights, back lights etc billmik Chevrolet 7 05-26-2013 09:39 PM
93 Bonneville shut off on Fwy. Lights,radio,windows work Cranks but won't turn over. sammy69 1992-1999 6 02-23-2010 07:07 PM
Wanting to wax etc etc but dont know how any tips? calaeb0896 Detailing & Appearance 1 04-04-2008 04:52 PM
Not starting, locks aren't working, etc. etc. Goo551 1992-1999 19 01-20-2006 08:13 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:18 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.