Question about 2003 Cadillac CTS

1 Answer

Engine light is constantly on

The car is running fine? What could be the problem?

Posted by on

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cadillac Master
  • 5,568 Answers

Call them before you go but any of the chain auto parts stores will plug in a code reader and clear up the mystery. This is a free service unless a dealer does it.
Your car may have monitoring sensors for many different things and sometimes that warning light only means you skipped some maintenance mileage point and need to have something replaced and the warning light reset. There are a number of different things that have a lifespan (such as the catalytic converter) that is not supposed to be exceeded in order to keep emissions within the federal limits.   Ain't govmint grand?

Posted on Feb 25, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Why is my truck check engine light on when i start it and it bogs while driving it? Why is my fuel pump constantly running and never cutting off?


The "check engine" light is on to tell you that there is a trouble code stored in your truck's computer. Most parts stores will read the codes for you for free. Get that done, and you will know what part to replace.

Jul 15, 2016 | 1993 Ford Ranger SuperCab

1 Answer

I have 2003 astra Sri Turbo ts hatch the engine light is staying on but the car runs fine? Suggestions on what it could be?


Tags location of knock sensor

https://outofthebooks.top/term/location-of-knock-sensor
Need to locate knock sensor on 1999 camry V6. Where is ... Cabin filter · I have 2003 astra Sri Turbo ts hatch the engine light is staying on but the car runs fine?

Common problems with the Astra G [Archive] - Astra Owners Network ...

www.astraownersnetwork.co.uk > ... > Astra Chat > Astra G

Mar 20, 2007 - 100+ posts - ‎100+ authors
Also, rear disc brakes on the SRi models have a tendancy to seize up ... Pre 2003 2.2i.... about 10mins but the engine temperature stays fine when running. it .... theengine manigement light is constantly on, but car running like a dream! ..... I have a 2007 astra sport hatch sxi 1.6 and seem to have a strange ...

Holden Astra known issues? - Holden - Automotive - Whirlpool

forums.whirlpool.net.au > Automotive > Holden

WhirlpoolDec 12, 2012 - The TS Holden Astras, late 90s to early 2000s, stay away. Unreliable ...People give the TS Astra a lot of flak but its a superb car. We have one ...

Jan 20, 2016 | Cars & Trucks

1 Answer

Why does cooling fan run constantly on 2004 pontiac sunfire


Have you checked the ecm for trouble codes ? The fan runs all the time as a safety to try to prevent the engine from overheating.

Aug 06, 2014 | 2004 Pontiac Sunfire

1 Answer

1991 nissan d21 check engine light stays on


Run the fault codes to find the reason that the engine light came on. It is very important not to just cancel out the light as it is there to let you know that something has gone wrong in the engine and transmission that if ignored will cost big bucks. It may be a coolant sensor telling you that the car is overheating but the temp gauge is not working properly. To cancel an engine light properly-- use a code reader as constant removal or the battery lead will corrupt the CPU program and give you more problems

Feb 23, 2014 | Nissan Pickup Cars & Trucks

1 Answer

Car fan running constantly with car on and check engine light on.


Possibly a bad coolant temperature sensor, sending the wrong signal that engine is hot and requires fans to be on for extra cooling. I don't know of any sensors for the thermostat, but don't know saturns.

Nov 24, 2013 | Saturn L-Series Cars & Trucks

2 Answers

1994 Ford Escort dies at stops


I had the same problem a year ago. I problem was that the intake manifold gasket had a small hole and it was causing the computer to constantly change the air to fuel ratio. The constant changing cause the engine to die at stops.

Jul 02, 2009 | 1994 Ford Escort

Not finding what you are looking for?
2003 Cadillac CTS Logo

206 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

60769 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...