Question about 1999 Chevrolet C2500

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Obd code po200 and po300. 2002 chevy 2500 hd

Truck misfires all the time now........getting worse and worse......seems to get worse when it gets hotter. Changed knock sensor in sept. Truck ran rough for a little bit then ran great until about 3 weeks ago. When knock sensor was changed heard an injector that was stuck open for a moment. Just changed that injector but made no difference.

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  • Anonymous Nov 20, 2008

    2006 silverado with new 6.0L , got gas today at circle K in Copa town and made 14 miles. and truck lights came on flashing stopped and truck DIED!

    not hot, everything looks good. starts with help of pumping petal... runs okay after it gets to about 60.

    dies at ideal....

  • Anonymous Mar 15, 2014

    Ran hot

  • Anonymous Mar 16, 2014

    cant find the jack to change tire

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This trucks have very coming problem with the injectors stuck open or close, and some times they just works great and some does not, dealer has an updated injector assembly, i recomend you to install this update and spark plugs and plug wires, if you had replace plugs and wires recently just redo the spark plugs with the injectors

Posted on Jun 15, 2008

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P0300 misfire code


Ignition Module
Vacuum Leaks
Egr
Valve issues
Timing Issues
Blocked Converter
Then about 10 more possibles

Being 1996 was the first year for OBD 2 Systems
You have at least some scan tool data IF you have a professional
scan tool

You have all YOU will ever need on the internet IF you know how to
ask the right questions

You can spend a lifetime looking at,printing & studying anything
about any subject

I suggest you first study OBD 2 Systems
Then the individual Components
Then get to how to test for cylinder misfires

To find out about codes

TYPE: OBD & the code ---- that easy

OBD PO300 (never need help again)

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1 Answer

I have a 97 chevy silverado with a 5.7 in it. I kept getting a p0300 code until the other day the truck completely stopped. I see that its not geting any spark. I changed the spark plugs, wires, cap,...


For OBD code problems check the list of help links below. Click the link below to go through its procedure.--------------Diagnostic Code P2195?http://schematicsdiagram.blogspot.in/2012/02/diagnostic-code-p2195-on-toyota-avalon.html--------------Diagnostic code P1330?http://technoanswers.blogspot.in/2012/02/diagnostic-code-p1330-on-kia-2wd.html------------Diagnostic code P0700, P1330, P1121?http://technoanswers.blogspot.in/2012/02/diagnostic-code-p0700-p1330-p1121-on.html-------------shows error code P1330?http://technoanswers.blogspot.in/2012/02/2003-kia-sorento-shows-error-code-p1330.html--------OBD code P1330?http://technoanswers.blogspot.in/2012/02/obd-code-p1330-on-2003-kia-sorento.html------------OBD code P01300?http://technoanswers.blogspot.in/2012/02/obd-code-p01300-on-toyota-rav4.html--------------OBD code P0768?http://repairhelpcenter.blogspot.com/2012/01/obd-code-p0768.html------------Evaporative Emissions System codes details?http://schematicsdiagram.blogspot.com/2011/11/evaporative-emissions-system-codes.html--------------- Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html

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-------------


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http://howtobyme.blogspot.com/2011/11/obd-code-p0172-on-buick-park-avenue.html

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---------
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Feb 18, 2012 | 1997 Chevrolet C/K 2500

2 Answers

My 2003 Chevy Silverado 2500 4x4 check engine light flashes randomly and different number of flashes each time like some sort of code is this posible?


It is misfiring. It likely needs a tune up. Have it scanned. This will tell you which cylinder is misfiring. Recommend replacing the plugs and wires

Feb 28, 2011 | Chevrolet 2500 Cars & Trucks

1 Answer

Truck Stereo Locked


The stereo will have to be removed from the dash and taken to the Chevy dealer with the vin of the truck to even begin to get that code.I have been trough that process before.

Feb 05, 2010 | 2000 Chevrolet 2500

1 Answer

Runs rough at idle and low rpm. misfires. gets better @ high rpm


sounds to me you have a emissions problem check your EGR valve and MAP senser

Dec 28, 2008 | 2004 Chevrolet Malibu

1 Answer

Audi v6 2.8l (AAH) warm misfire at idle


It is necessary to replace rings on pistons.

Nov 07, 2008 | 1998 Audi A6

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