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I have a2007 chevy silverado 4x4 1500 that has a check engine light on and codes are co561,bo775,770,780,785,790, b2725 what does this mean

Need to know what these computor codes mean co561, bo770,775,780,785,790, b2725

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Are you sure about those codes?? Virtually all computer codes are 4 digit numbers with two letters in front. Did you just omit the leading zeros maybe? If the truck will run I would take it to Autozone or some other auto parts store and have the codes pulled. They will then give you a print out of what the possible causes are.

Posted on Aug 14, 2014

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Posted on Jan 02, 2017

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SOURCE: 2000 chevy silverado z71 check engine light will not go off.

you have to know what the code is that your truck putting out your truck has 4 O2 sensors. the trucks computer is smart and the code will tell you witch one is bad but if you replace just one the next one on the same exhaust pipe will probley go bad so its safe to replace all four. the draw back to replaceing all of them is thay cost about 80 bucks for one ACDelco O2 sensor. It has to be done before it will pass Emissions. not a hard part to change about a 7/8 open end wrench will take it off. have fun.

Posted on Jul 19, 2009

arauzvictor1
  • 466 Answers

SOURCE: chevy malibu check engine light on code P1665 what

P1665 Evap vent solenoid control circuit

Posted on Aug 30, 2009

  • 32 Answers

SOURCE: po452 trouble code changed sensor engine light

you might try unhooking the battiey for 20min both + and - posties cuz that will force the computor to have to resest only if you have addressied the fuel pressure problem which taht would most likly be your filter which isn't all that much

Posted on Sep 21, 2009

  • 1 Answer

SOURCE: 2003 chevy silverado 1500 check engine light on

2003 chevy silverado
A picture of a engine is on the dashbroad, what can I do to get it off.
Rita

Posted on Oct 07, 2009

  • 23 Answers

SOURCE: 2007 Chevy Silverado when my check engine light

It's a safety feature. For example, if there is no oil pressure when you start the engine, you could not see that unless you were in the car and could spin a bearing or seize the engine by starting it remotely and letting it run unattended. So when the check engine light is on, there is something not working properly with the engine/engine management system and it wants you in the car where you can see the guages and turn the engine off immediately if there's a serious problem.

Posted on Jan 05, 2010

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