Question about 1994 Cadillac DeVille

1 Answer

Service Engine soon light stays on but car runs

Service Engine soon light came on and stays on but car runs great, any ideas what the problem could be? The pcv valve is new

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,201 Answers

Probably needs an oil change (if it already hasn't had one) and the light reset. If that doesn't help, take it and have a code scanner hooked up to it, to find out why the light is on.
If there is an autozone or advanced auto near you, go there, and tell them you have an engine light on and need to read the code.
They usually don't charge, other places do.

Posted on Jun 27, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Reset service engine soon light


You have a real auto repair shop ( not auto parts store) look at stored codes, & any freeze frame data
Do not clear the dash light or you loose data & ability
to diagnose & resolve the issue

Jul 11, 2013 | 2002 Mitsubishi Galant

2 Answers

I have a 2008 Beetle with a 2.5 litre engine. The engine service soon light has been coming on for the past 4 to5 months. We have replaced the spark plugs, number 5 cyl coil, changed the battery, serviced...


In most cases the check engine light indicates a sensor is bad. Have a mechanic scann it and if so replace it.....hope this info helps and if so Please leave rating on this post and good luck..

Aug 15, 2012 | 2008 Volkswagen New Beetle

1 Answer

Can anyone tell me how to rest service engine soon light on a 1999 altima gxe?


the whole service engine light soon is on for just about everthing did you check to see if your oxegen sensor was good when you do an oil change you can reset the miles that you went and when you reset it you see how much miles you get from the new oil

Feb 26, 2012 | Nissan Altima Cars & Trucks

1 Answer

On initial startup unit runs good. After unit starts to warm up with defroster running engine service soon light comes on and stays on? Any ideas?


That's just a service reminder light. Usually indicating it's due for a particular service at a specified mileage. Any good shop or parts store can reset that for you.

Mar 10, 2011 | 1991 Ford Tempo 4 Door

1 Answer

When I start my 2001 alero the anti-lock, traction light, service engine soon, service vehicle soon lights all stay on all the time. But my car seems to be running fine. Why is this?


the anti-lock and traction lights will come on together if there is a common problem with the two, since they are closely related. may be a wheel speed sensor or something similar. the service engine soon light indicates a problem with the engine computer, can be anything from an emission system problem or an engine performance problem. all of these lights can come on with no apparent running problems on the car. the service vehicle soon light is basically a maintenance reminder, an oil change light. take the car into a shop and have the codes read for these lights.

Feb 23, 2010 | 2001 Oldsmobile Alero

3 Answers

Dies when started cant find check engine light


The service engine light is the check engine light. Different name for the same thing.

Feb 22, 2010 | 2002 Ford E350

1 Answer

Service Engine Soon Light comes on but doesn not stay on.


If your battery starts turns the engine over, it is doing it's job well. It sounds like your engine computer is not liking the cold engine. If it has been a while since a tune up, it would not hurt to go ahead and do it, but if it runs ok after it warms up, I sould not worry about it a whole lot. When the engine is cold, the egr valve and other things that are made to limit polution tend to stick and give the computer bad readings. A serious tune up may fix it, and I think should, but you MAY still be in the same boat! That does not FIX it for you, but should ease your mind on the light.

Dec 21, 2008 | 1999 Chevrolet Silverado 1500

2 Answers

98 C1500 Silverado ''service engine soon'' light


the service engine soon lite comes on due to an input sensor to your vehicles computer that has gone out of its parameters. this lite does not come on due to mileage. the computer needs to be scanned for code #'s in order to diagnose correctly. autozone will scan codes for free. if you get me the code #, ill try to assist further, otherwise you may want to see your local garage.

Nov 22, 2008 | 1998 Chevrolet C1500

1 Answer

Service engine soon & brake light stays on


the service engine light is prob due to the oxygen sensor being damaged, not replace or you having the catalytic converter taken off---just messing with you. start at auto zone and have then do a free code read then go from there. you should troubleshoot the low fluid level switch for your brake fluid. unplug it and see if the light goes off and if it doesn't jump the two terminals on the harness. oh the car will have to be running. Let me know MrRodneyLong@gmail.com

Jul 04, 2008 | 2000 Ford Mustang

Not finding what you are looking for?
1994 Cadillac DeVille Logo

372 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

75807 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22133 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8172 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...