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Will not turn over

Tiny
JABEAR21
  • MEMBER
  • 2000 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 13,000 MILES
Okay guys, I have the car listed above DTS model. I put it away for the winter in October. If the car sits for a week or so the battery will drain out. I think it is because the two way aftermarket alarm draws it down. No porblem.

I own my own repair shop so I can handle a drained battery.

The other day I put the battery charger on it for about four hours to start it up like I do here and there.

Problem:

All the electrical everything is powering very nice, I know the battery is very well charged. But when I turn the key I get no cranking over at all. I checked fuses, wiggled wires, checked battery connections, I also tried turning the belt pulleys to see if the starter was stuck in. I am aware on the Northstar engine that the starter is in the intake man. But I am not sure if that is my issue. I am not sure if this is a anti theft, electrical, or starter problem.

I am hoping somebody had the same problem.

A year ago when I bought the car, the battery drained once. I had the same problem. That time I just turned the pulleys with my hand hoping the starter was stuck and wiggled wires here and there. She fired right up and never had that problem until now.

Any help is appreciated!
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Monday, February 11th, 2008 AT 7:06 AM

33 Replies

Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
It sound like the security system has engaged due to the low battery which is normal use the remote and lock and unlock the doors.

Here is a guide that can help:

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.

Cheers
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Monday, February 11th, 2008 AT 10:53 AM
Tiny
JABEAR21
  • MEMBER
  • 6 POSTS
I put my Napa battery charger on it for a couple hours straight charging at 12v/40 amp. It does not click at all like the battery is dead. The battery is also fairly new. When you turn the key on everything has strong power like normal. The starter just does not even attempt to move.

Is it possible that trying to start it the previous time with a half drained battery ruined a fusible link or inline fuse?
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Monday, February 11th, 2008 AT 4:54 PM
Tiny
JABEAR21
  • MEMBER
  • 6 POSTS
I figured it out guys.

All I had to do was disconnect the battery for a minute or so. It reset the alarm system.

I manually cranked the starter by putting power to the relay and it fired up but the security light came on and turned it off. So I reset the alarm by unhooking the battery.
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Wednesday, February 13th, 2008 AT 6:07 PM
Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Pull the codes, off and down on the mode button, with the key in the on position, write them down and post them, sounds like an alarm problem. Why do you have two alarms on there?
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Friday, February 15th, 2008 AT 4:15 PM
Tiny
JABEAR21
  • MEMBER
  • 6 POSTS
It is fine now, all I had to do was disconnect the battery.
Thank you
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Saturday, February 16th, 2008 AT 7:59 AM
Tiny
REV2010
  • MEMBER
  • 1 POST
  • 2000 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 101,000 MILES
Hello gang. I have been trying to get an answer to this problem for about a month now from all over. My car (base) will not crank. Everything works, battery new, replace key cylinder, crank sensor A and B, ignition switch, starter and starter relay, and check all connections and grounds (to the best of my knowledge). There appears to be a break down between the starter and ground. If you connect a separate ground from body to starter the engine will turn over slowly. If you run the additional ground to the body, it barely turns the engine over I used jumper cables and also tried using on the battery ground. The only codes were P0335, P0340, P0385, which all point to to crank and cam sensor circuit, all of which seem to have tested fine. Even used a scan tool not a Tech 2 (loaded with updated software, except for the GM high priced subscriptions) a friend has, but could not get a crank request. Any help would greatly be appreciated. I do have the factory service manuals.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Okay, hopefully you have checked all the fuses, etc. There is a crank circuit breaker before the relay that can kick off and not give the relay power. However, there is a yellow wire from the ignition switch to the PCM it goes to number six on the PCM. Then it leaves the PCM at C2 to go to the relay. The ignition switch fuse is in the fuse block under the rear seat. Also, clean the battery ground which is under the rear seat by the battery. It could be loose as well.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check engine for good ground.
Try and run a temperature ground wire to the engine metal (you have a lot of a plastic).
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
6TOBYDOG
  • MEMBER
  • 5 POSTS
  • 2000 CADILLAC DEVILLE
  • 4.6L
  • V8
  • FWD
  • AUTOMATIC
  • 170,000 MILES
I just purchased the car with an electrical problem. The guy told me he was driving home and the dash lights went haywire, he made it home and the car has never started again. When I try to start it the dash lights go black and there is no sound or any action at all. I have over 12.5 volts everywhere. Checked all fuses and cannot find anything. It is driving me crazy. Please help! I am on disability and cannot afford a mechanic. Thank you!
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try resetting security system if still does the dash light thing have it scanned. It may be a body module or dash.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
6TOBYDOG
  • MEMBER
  • 5 POSTS
Thanks, I am charging my battery now to make sure I have full voltage first, then I will try the procedure. I have a obd2 scanner, so then I will erase the codes and let you know. Thank you.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
6TOBYDOG
  • MEMBER
  • 5 POSTS
Well I tried that procedure twice and had the same results. I had this same problem with I think it was a 1994 Buick Park Avenue, it was a little white wire off the ignition, but not sure if this is the same setup on my 2000 Deville. Do you know or have anymore ideas? Thank you so much for your help.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
See picture for start diagram and check what I have pointed out. You have three fuse block on this car. One under hood and one under left rear seat and one in trunk. Make sure you check all the fuses especially under hood and rear seat. You may have a bad dash module as well but would need scanning for that.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
CJV
  • MEMBER
  • 3 POSTS
  • 2000 CADILLAC DEVILLE
  • 176,336 MILES
I was diving everything was fine went to turn around. First lost power to brakes then to power steering then to dash then to motor. Now when I try to start I get nothing dash will not light up. I still have power to interior lights I checked fuses none blown, but I do not know how to check relays. I took out radio day before drove it that day nothing wrong. I did leave loose wires after taking radio out. Covered them after that happened.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Check the battery. It may be too low to keep things going.

Start there.

Roy
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
6TOBYDOG
  • MEMBER
  • 5 POSTS
I am sorry I forgot to mention I have already went through all that.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
CJV
  • MEMBER
  • 3 POSTS
I already did, reads is getting 15 volts.
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
15 volts? Too much. Is this running at the battery or engine off?

Roy
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
6TOBYDOG
  • MEMBER
  • 5 POSTS
My mistake, should have never bought the car. Thank you for the help!
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)
Tiny
CJV
  • MEMBER
  • 3 POSTS
Well I hooked up barttery charger it read I was getting 15 on that mabe it ment 15 amps. If it was my altnator would that cause my dash not to come on and not let me roll my windows up only thing in my car that works r my visor lights and door lights other then that I have ni power to anything I'm going to check barttery again. Tomorrow. If it was alternator what would b the signs of that
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Tuesday, June 19th, 2018 AT 12:04 PM (Merged)

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