My 1990 Cadillac Deville wont start or engage starter

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Cadillac DeVille DTS - YouTube

? 2:09
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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 ...

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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

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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

Failed fuel pump -check the pressure at the motor

check the starter and make sure have a good and clean contact a eassy way too check hold the key all way dow on start position for few seconds if any cable of the battery is hot the cause is a bad contac clean up and tide dow and check your battery to

OK. Make sure that the black and silver resistor on the key is clean of grease or moisture that can cause the security system to reject the key as a valid one coded for this car.

If you replaced the starter, hopefully you disconnected the battery first, so that there would not be any jolts of electricity or shorts when turning the wrenches or turning the bolts with the socket and ratchet.

I have a 1990 Cadillac Deville and a 1997 Cadillac Deville which have a similar key. Yours is probably similar in look and function to mine.

Another thing to mention, is that if you hear a click or it tries to turn over but doesn't, your connections may not be as good as they should be at the starter coming from the battery.

Or, finally, the starter might be defective, even though it is newly rebuilt or built.

So, I hope this helps.

First, I would determine it is bad. I have a 1990 Cadillac Sedan Deville, and sometimes it doesn't turn over. But, if I toggle the switch a few times or up to 5 times, it starts to turn over and the car starts.

I have the same problem with a 1997 Cadillac Deville.

If you are set on changing it, here is a picture and instructions on how to test:
Starter TESTING Voltage Drop Test Fig. 1: Schematic of a voltage drop test
NOTE: The battery must be in good condition and fully charged prior to performing this test.

1. Disable the ignition system by unplugging the coil pack. Verify that the vehicle will not start.
2. Connect a voltmeter between the positive terminal of the battery and the starter B+ circuit.
3. Turn the ignition key to the START position and note the voltage on the meter.
4. If voltage reads 0.5 volts or more, there is high resistance in the starter cables or the cable ground, repair as necessary. If the voltage reading is ok proceed to the next step.
5. Connect a voltmeter between the positive terminal of the battery and the starter M circuit.
6. Turn the ignition key to the START position and note the voltage on the meter.
7. If voltage reads 0.5 volts or more, there is high resistance in the starter. Repair or replace the starter as necessary. NOTE: Many automotive parts stores have starter bench testers available for use by customers. A starter bench test is the most definitive way to determine the condition of your starter.
   

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Remember to disconnect the battery and remove the wires from the starter at the hex nut.

Then, remove the 3 or so bolts that hold the starter on using an extension and ratchet if necessary.

Hope this helps.

Most definitely sounds like a starter. Try toggling the key to the start position several times a second until the starter operates. I do this to my 1997 Cadillac Deville occasionally as the weather changes without changing the starter (which probably should be done).

I also have a 1990 Cadillac Deville that does this occasionally.

Must be a GM thing.lol.

Try to quickly engage and disengage the starter motor by rotating the key all the way forward and back to ignition on only, and back again several times a second until the starter motor engages.

Sounds like the starter motor solenoid is sticking, maybe.

This happens on my 1997 Cadillac Deville sometimes on hot summer days or even in the winter.

I thought it was the security system, at first, but it is more likely a starter motor going bad.

Has the motor siezed from lack of oil or water

sounds like jumped timing belt maybe chain ,no spark is my guess if it turns over and dont even make a pop noise..