Vehicle will not start at times

My guess is Body Control Module comm failure, which would explain inoperative windows and door locks. Lighting is likely non operational also?

Check any/all fuses labeled BCM. You could also try disconnecting battery for few minutes and see if problem clears.

Search Results

Cadillac DeVille DTS - YouTube

? 2:09
https://www.youtube.com/watch?v=dXLzsEm1-0Y
Oct 20, 2010 - Uploaded by 1969Bossman429
We dropped our 2000 Cadillac DeVille DTS off at the local Cadillac ... He got into the vehicle, turned the key and the vehicle was still revving at full throttle. ... He raised the hood, reached in to the throttle body area and cycled ...Missing: 1994 ‎chatter ‎activated

1994 Cadillac Sedan DeVille [Archive] - Cadillac forums : Cadillac ...

www.cadillacforums.com > ... > Cadillac Reviews
Jan 17, 2005 - For my Review I will write about the 1994 Sedan Deville. ... A stifferbody this year made the Deville much quieter over the outgoing 1993 DeVille. ... First is a key when your looking at just about any Cadillac, push "off" and "warmer", this ...Have a helper hold the throttle plates wide open with the engine off.

Cadillac DeVille Questions - Cadillac Deville 2001 won't ...

www.cargurus.com > Questions > Cadillac > DeVille

CarGurusJan 21, 2014 - Cadillac Deville 2001 won't start, engine won't turn over - My cadillac won't start. When i turn the key the engine wont turn over and when i do turn the. ... bad replace was told alt was intermenting so that's wat caused issue now car .... intake plenum (the tube between the Mass Air Flow and the throttle body).Missing: 1994 ‎chatter ‎activated

Cadillac Deville 2001 won't start, engine won't ... - CarGurus

www.cargurus.com > Questions > Cadillac > DeVille

CarGurusJan 21, 2014 - Cadillac Deville 2001 won't start, engine won't turn over - My cadillac won't start. ... Crank not starting - service theft system in dash: There are 2 starter ....I have a 2002 Cadillac ... that all of a sudden stopped turning over ...

2001 cadillac northstar cranks but wont start. - YouTube

? 3:50
https://www.youtube.com/watch?v=t5SBKPut7G8
Mar 30, 2014 - Uploaded by eastcoasthoopty
2001 Cadillac wont start thought it was the chip in the key but it was ... I have a 2002 Seville In the morning I start my car noproblem, once its ...

Cadillac Deville 2001 won't Start - YouTube

? 0:43
https://www.youtube.com/watch?v=aUdX_Vnt1qI
May 10, 2013 - Uploaded by Shane Moore
Cadillac Deville 2001 won't Start .... i have a 2002 cadillac DTS. My issue is it will not idle, it will not start unless you have your foot to the gas all ...

2001 cadillac deville starting problem - YouTube

Does the exhaust smell sweet -like ? Do you see steam after the warm-up period ? Its a Northstar engine ? That stuff doesn't just dissapear .. there something loosing it... How do you know theres no head issues ? Head gasket leaking into a cylinder, they are famous of that kinda stuff ...

If your battery is dead, the key will stay in. Try giving it a jump. Also check to see if the steering wheel is locked. If it is, try turning the steering wheel somewhat vigerously whilst trying to remove the key. Short of that, it's a common problem with those year GM vehicles. Their ignition switches suck badly

Bad relay could be drawing excess amps. Bad starter can do this as well.

With all the electronic's on your vehicle this type problem is hard to diagnose. It would be better if it died an didn't start back up , then it could be diagnosed . Your vehicle has a number of electronic control module's , sensor's etc..... Plus the modules all share information on a serial data bus ,communication network . A loose connection ,a module not sending info. ,anything like this could bring down the data bus an cause it to die. I feel for you , the dealer shouldn't have just replaced part's like that if they were not sure . Problems like this can take a long time to pin down . Hooking up testing equipment , using a 8 channel lab scope to check electical signals to an from the PCM , BCM ,data bus. Could take a lot of diagnostic time . Did you buy the vehicle new ? Get the factory Rep. involved , engineers from cadillac etc. When i have a problem vehicle at the dealer that's what i do , call tech help line .

parts and labor approx $4k. and you will want to get new motor mounts installed also whenever replacing and engine.

you can reset the system by turning key to on position for 5-10 mins and then try starting it but its probably a short or grounding prob try the engine to chassis ground