Question about 2000 Pontiac Sunfire

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I have a 2000 pontiac sunfire and the check engine light is on I have taken it to auto zone and everywhere else but the computers they have never show up anything they tell me my comupter is broken not theirs and they must be right if they all say the samething... what should i do?

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I have the same problem with the same car and it does say service engine. When I bought my car the owner told me that they thought it was the fuel pump or the fuel filter. The guy explained what was going on with the car to my step dad who said he thinks if either of the two its the filter so we changed it and it was practically brand new. We're still not sure what it is; Brand new spark plugs and it ran okay for about a day. When I started it I had to hold the gas down then pump it after it started... But now no matter what it wont start... My step dad said he thinks it's the starter. After looking things up on the computer my mom thinks its something to do with the computer in the car. One guy on here said he took the computer all apart and put it back together and it ran like brand new. I would do the same but I have no clue where the computer is...

Posted on Aug 16, 2010

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Does it say service engine soon or service vehicle soon?

Posted on Aug 01, 2010


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I just my car 2000 pontiac sunfire coupe 2.4 i love it soo much the problem is that it has 2980000 on it and the engine light came on? i know these engines are not the greatest.. what can i do to save it

Just have the code read.You can have this done at Auto Zone or O`riellys.They will check it for free.Just cause the check engine light came on does not mean the car is done for.Get the code and get back to me and I``l help you figure out what is causing it to come on.Does the car run any different since the light came on?Let me know.Good luck.

Jan 11, 2011 | 2001 Pontiac Sunfire

1 Answer

What does it mean when service light comes on

There is an emission problem that sets the Service Engine light on. If you go to an AUTO-ZONE type parts store, they will let you use a device to download trouble codes from your cars computer to see what the problem is. In most cases, it is FREE (ask first) and easy to do. If it has set multiple codes, it gets more complicated and requires a mechanics touch.

Nov 18, 2010 | 2000 Pontiac Sunfire

3 Answers

There is a check engine light coming on and I need to know what it is

The only way to know what FAULT CODE in there, is scanning your ECU; when you have this number code, tell us for other details.

Keep in touch.

Jul 14, 2010 | 2000 Pontiac Sunfire

1 Answer

Its a 2.2 ohv and it runs like it has a bad miss it idles funny and kinda bogs down when i hit the gas but once above 2000 rpms it runs decent until about 3800 rpms then it sometimes starts to backfire

You didnt say if the check engine light is on? Take it to auto zone or advance auto parts store and they will plug it into diagnostic computer and let you know what sensor is bad for free. My guess? manifold pressure sensor. Good luck, dont forget to rate

Jan 25, 2010 | 1999 Pontiac Sunfire

1 Answer

2000 pontiac sunfire service and theft light on

You will have to get the codes for both of these modules.Then you can post back and I can help you and explain what they mean.Auto Zone will check the service engine soon light but I don`t know if they can check the theft light.They won`t charge you.

Nov 30, 2009 | 2000 Pontiac Sunfire

1 Answer

Just bought a used Sunfire. Check engine light

I have never had to replace an ALDL plug in 28 years. This includes 4 years working for a GM dealership.

Check your manual for a fuse location for the diagnostic link. Also try the generic vehicle data stream on the scanner. Is this a good scanner like a snap-on or genesis? If it a cheap one, suspect that.

Try going to an Advance or Auto=zone store and have them try to scan it.

Hope this helps

Oct 08, 2009 | 1997 Pontiac Sunfire

1 Answer

2000 Sunfire TC & Engine Light won't go off!

You have an engine code. When engine code sets it disable the traction control & tc light comes on. Go to auto zone they will check for codes for free. Your can buy your part & install your self if simple. If you need special tool they have loaners

Sep 08, 2009 | 2001 Pontiac Sunfire

3 Answers

2002 pontiac sunfire has check engine light

Your problem is typical for these cars. The throttle position sensor is bad. Go to Auto Zone and have them check the codes to confirm this. i've seen this many times, that's usually the problem. It makes the car feel like the brakes are on. Hope this helps. Let me know. Phil

Jan 16, 2009 | 2000 Pontiac Sunfire

1 Answer

2000 Sunfire check engine light

The computer will have to be scanned for codes, then remove the light with the tool can buy a scanner at Cragens

Dec 22, 2008 | 2000 Pontiac Sunfire

1 Answer

Lights on dash

Hi dont know alot about it but I would change out the horn relay.That is under the dash on the pass. side up high and behined the glove box 2 nuts to take out and it should drop down hard to get at too.

Jul 13, 2008 | 1998 Pontiac Sunfire

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