Question about 2000 Chevrolet 3500

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Service engine soon light code P1870????? 2000 gmc van hawknlab@yahoo.com

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Tcc regulator valve is not responding,the valve body may need replacing,the problem occurred from not servicing the transmission

Posted on Jul 10, 2010

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Posted on Jan 02, 2017

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1999 chevy 1500 express van, trys to start but stops, the fuel pump is new, i think it is electrical.


Has your Check Engine or Service Engine Soon light come on? If so, there is a code stored in your van's onboard computer. Have that code read and interpreted at any large auto parts store, and either arrange to have the problem repaired or repost with the code number. If no code is present, we have a whole new ball game.

Oct 01, 2013 | Cars & Trucks

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How to get the service engine soon lamp to turn off for a 2000 gmc yukon xl


If you service engine soon light is on you have a problem and the problem needs to be fixed. This light is turned on when the on board diagnostics see a problem and set a code. this code will point you in a direction to solve your problem. So you need to have some one scan your vehicle for codes

Feb 13, 2011 | 2000 GMC Yukon XL

1 Answer

Service Engine Soon Light - What causes this light to come on? I already checked the gas cap and it did not make any difference. The van had a tune up about 2 months ago (changed plugs, air filter,fuel...


THERE IS A SENSOR OUT OF RANGE THAT IS WHAT MAKES THE LIGHT COME ON YOU NEED TO PUT IT ON A SCANNER AND THAT WILL GIVE YOU A CODE FOR WHAT THE TROUBLE IS

Oct 14, 2010 | 2000 GMC Safari

1 Answer

My 1999 safari van Service Engine Soon light on


you need to find out if there is any code stored in the vehicle's computer. ask your mechanic to hook up the scan tool to it.
if he does not have a scan tool then he should not working on your vehicle.
you can go to ant parts store to have it check for code for free. this is the first step you should do

Mar 07, 2010 | 1999 GMC Safari

1 Answer

1999 denali-5.7- looses power and starts to shimmy...then shifts down and struggles to stay at speed...service engine soon light begins to flash and eventually comes on solid. This happens intermittently...


flashing check engine light is a sever engine misfire that will cause a catalytic convertor failure which is about a $1500 repair in your denali. Have someone scan the code for you and let us know the codes stores in the computer are. Could be as simple as a tune up to fix the problem or bad as a fuel pump

Feb 25, 2010 | 1999 GMC Denali

3 Answers

Dies when started cant find check engine light


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

Feb 22, 2010 | 2002 Ford E350

2 Answers

"service engine soon" light appears.


misfire code (engine miss) check tune up plugs and wires

Oct 21, 2009 | 1994 GMC Sonoma

1 Answer

2001venture van service engine soon light stays on


most any sensor going bad can cause the check engine light to come on,try disconnecting the posative battery cable for 15 seconds ,then put it back on,will reset the codes, or take it to auto zone,they will test your computer for codes at no charge to you.i had a venture van my was ox. sensor. thanks robert b.

Jun 16, 2009 | 1998 Chevrolet Venture Cargo

2 Answers

Service engine light won't go off after tune up


Ok, when the service engine light is illuminated, this Will represent a failed sensor or a malfunctioning cpu that will need to be diagnosed by a service tech. this light has a trouble code that will have all information that you will need to fix what the light is signaling at this time. you will need to take the vehicle to a mechanic or the dealership so they can connect the diagnosis cpu to your in Car cpu port. this diagnostic cpu will download the actual description of the issue at hand and , it Will direct you to the location of the problem with this engine as well.

In most cases, it will be a failed sensor of some sort.

May 18, 2009 | 2001 GMC Savana

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