Question about 2000 Volvo S80

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Put a different motor in runs good the check engine light stays on? how do i get it to go off?

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  • 16 Answers

First plug it in and find out what code is reading so you know why the light is on. that will tell you how to turn it off

Posted on Jul 30, 2010


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Posted on Jan 02, 2017

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SOURCE: yellow engine check light stays on

take the car to dealership and get them to cancel the fault memory of the engine control unit. Then if the warning light comes back on you will need a full diagnosis check to establish what is causing thefault.

Posted on May 15, 2009

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SOURCE: check engine, seatbelt and ebrake lights stay on, '94Ford Tempo

Take your car to an autozone they can scan the codes for you. Your on-board diagnostic is telling you something is wrong. They cannot tell you exactly what is wrong but they can point you in the right direction. Can't beat it for the price of free. If you want to know exactly what is wrong you will need to take it to a licensed ford mechanic or dealer.

Posted on Feb 17, 2010

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SOURCE: check engine light

go by autozone and have them pull the code or codes they will do it for free and give you an idea of what the problem is!

Posted on Mar 02, 2010

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On my 1998 Navigator the check engine light came on. The engine was missing so I replaced spark plugs and coils. The light went out but came back on after motor ran for a while but it didn't miss

Those are 2 different problems. There is an electrical short from the dome light which would be draining your battery if its staying on all night. If the is also a miss from the motor u 1st have to find out what cylinder(s) are missing & then the cause. That can be clogged injectors, head gasket, emissions etc. .......... There are many possibilities for that. Have that one checked out. Good luck.

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Air condition and heat know not working

You need to ensure the engine is running when you are testing the AC or heating systems, as they rely upon a compressor to work the heat pump.

If your engine is on when you are testing this and no different temp air comes out, you should ensure your AC system is properly charged with coolant and that the compressor is engaging and functioning. If not, it will need to be replaced.

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sounds to me that you may have a plugged catalytic converter. try disconnecting the converter and running the engine, also you can check for restricted exhaust coming out tail pipe.

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Engine warning light stays on

Check your gas cap. Whenyou put in gas the motor is suppose to be off. If there's not a good seal on gas cap that will cause the check engine light to come on. The mechanic should have a code reader for you and tell you what the light means.

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Mercedes S430

When you shut the car off something is staying on in the vehicle, causing a current draw on the battery, causing it to go dead over night. something that would cause this would be like a under the hood light, trunk light, interior light staying on. visually check it. and if you don't find anything you might want to buy a fluke/ volt meter, to check for unwanted current draw when the vehicle is off. your local mechanic could help. it could become more extensive then this but most likely not by the sounds of it.

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Check engine light suddenly came on. Car has been running well. What coul dbe the problem. This is a 99 V70 Volvo wagon with 160,000 miles on it. I bought it 2 months ago and trustworthy mechanics told me...

The information below was complied by me, it explains what causes the check engine light to come on and the process of finding the cause.

When the Check Engine light (or Service Engine Soon) is turned on, the systems computer control unit (called the PCM) has sensed a fault in the electronic controls of the engine and/or the emission system. When this happens you will seldom feel the car engine run any different. There are about 200 possible system faults (the gas cap is just one of them) that turn the Check Engine light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen/Oriley and Autozone parts stores (USA only) do this testing for free.

Sep 11, 2011 | 1999 Volvo V70

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Service engine light is on veliche runs no different . Where are the sensors located?

You might want to check your gas cap. A loose or faulty cap will cause the check engine light to stay on.

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Dies when started cant find check engine light

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

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SC 400 engine light and track light on-but engine runs great

to reset any malfuntion in memory , disconnect the negative battery terminal few minutes

Mar 03, 2009 | 1992 Lexus Sc 400

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Service engine soon engine light

it will eventually hurt something,when your car engine light comes on its a sensor telling the computer in your v ehicle somethings wrong and puts your computer in a closed loop ,which is a safety so lets say its the o2 sensor so your car doesnt run lean ,it goes into closed loop and will feed your car more gas,this is the best safety mode your cpu can do,which will cause other emmision sensors to fail and will cause damage the motor,take it to auto zone theyll check it for free,or pep boys and give you a print out for free including how much the part cost.dont forget to give a fix ya vote

Jul 15, 2008 | 1992 Buick Regal

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