Question about 2002 Cadillac Deville

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2002 cadillac deville service engine light flashing at 20 mph

Service engine light was on, battery went dead due to dome lights left on for @ 36 hrs, battery would not take charge, replace battery, now service engine light flashes at 20 mph, with car coasting and trans in nuetral light flashes till car gets down to 20 mph then it stays lite. Have replaced coil paks, plugs, and boots, remove battery cables an drain 12v system, no change...

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  • Cadillac Master
  • 3,545 Answers

Did you replace those parts based on the trouble code? Or are you just throwing parts at it? What are the codes?

http://ricksfreeautorepairadvice.com/flashing-check-engine-light-is-serious/

Posted on Aug 30, 2017

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6ya6ya
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Posted on Jan 02, 2017

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cadman000
  • 607 Answers

SOURCE: 1999 cadillac deville brake light switch

Replace the brake light switch - sticking . Hope this helps

Posted on Apr 23, 2009

honeymokey
  • 3113 Answers

SOURCE: replaced battery now car will not start, service security system message on dashboard info. please help

The car is not reading the key and thinks someone is trying to steal it. Try another key or see a dealer.

Posted on May 09, 2009

michigan man
  • 3533 Answers

SOURCE: the service engine soon light stays on i just change oil

you can try taking the positive cable off for about 3-secs and check in you owner manual to see if it tell you how and if you do have one try this website www.edmunds.com to see if you can download one for you car.

Posted on May 25, 2009

  • 1 Answer

SOURCE: the service stability system light came on in my

My Service Stability System Message along with the (ABS) Brake Light lit up on my dash, what can i do to fix it...Or what does this mean ?

Posted on May 07, 2010

  • 1 Answer

SOURCE: service stability system light flashes

i hav the same problem wit my 98 deville wat did u do to fix it and wat was the cheapest way. Also did u have anyother problems wit ur car during the time u were driving it wit these lights on

Posted on Dec 29, 2010

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2 Answers

Dead battery while just setting for few hrs



bad batt..alternator..or wornwire that charges. Chec all connections for dirt and titeness. Cud b a fuse tu. Charginwire is at back of alt to the batt

Jan 13, 2016 | Cadillac Cars & Trucks

1 Answer

2002 Cadillac deville DHS. Before take the smork


Whatever is causing the timing adjust itself at the wrong time. It could be anything from a vacuum leak, to a coolant sensor to electrical problem. By reading all the LIVE READINGS from the sensors & getting an emissions reading will help u narrow down the problem. It doesn't sound like a DIY fix. Equipment needed

Apr 20, 2017 | 2002 Cadillac Deville

1 Answer

My 2002 cadiliac sts keep flashing diffrent warning lights as i drive


If you can duplicate the problem if the car is parked, I would want to know if the alternator is charging the battery when the battery light comes on and if there are any codes stored in the computer.
Battery voltage dropping below 12 can cause all sorts of electrical problems, and some of the warning lights are connected to each other.

Feb 12, 2013 | 2002 Cadillac Deville

1 Answer

Have a 91 cadillac sedan deville left the inside


Security system is active, look in your owners manual to deactivate

Jun 14, 2010 | 1989 Cadillac Sedan DeVille

1 Answer

Cadillac 1999 DeVille Battery goes dead after sitting for a few days. Had battery checked and it's good. What should I check?


You should check for voltage draws when the vehicle is off... Disconnect the negative battery termal, Pull dome light fuse,and connect a light or volt meter between the two.

common offenders are alternator diodes. These fail and cause drain.

Then you have to check, circuit by circuit, until you find the offending system.

Also, before doing anything, disconnect negative terminal and see if the battery is still fully charged after a few days...

May 24, 2010 | 1999 Cadillac DeVille

1 Answer

Have a 99 cadillac sedan deville. lots of


you need to verify the dome lights are turning off before you walk away,something is draining the battery.check you car out after driving it and make sure radio and any other things all shut off.

Dec 28, 2009 | 1999 Cadillac DeVille

1 Answer

I have a 2002 Cadillac DTS. It randomly dies when


Had same problem,called my Cadillac buddy and he said pick up both crankshaft position sensors.Charged me $100 cash and has not stalled again,drove me nuts for two years.

Jun 18, 2009 | 2002 Cadillac Deville

1 Answer

Change engine il and tire pressure message how do i rest


Must have codes for check engine light cleared with scan tool. Check all tire pressures and road test up to 35 mph. Tire message should clear if low tire was problem. If light for tires remains then possible radio frequency sensor problem. Sensor replacement may be necessary. Sensors have alkaline non-serviceable batteries. If battery is dead sensor will have to be replaced.

Apr 03, 2009 | 2001 Cadillac DeVille

1 Answer

Clicking starter=car not starting


the battery is located under the rear seat, check battery connections. if connections are tight replace starter.

Mar 29, 2009 | 2002 Cadillac Deville

1 Answer

Car won't start


did it crank over or not at all? please clarify

Sep 03, 2008 | 2004 Toyota Corolla

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