Question about 2005 Chevrolet Express

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P0174 p0300 2005 chevy express van missfiring

Ok when cold misfiring when hot

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  • Chevrolet Master
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Could possibly head gasket . check for air bubbles in radiater

Posted on Feb 03, 2015

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Posted on Jan 02, 2017

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SOURCE: 1996 chevy express van audio wiring diagram

go to www.the12volt.com

Posted on Aug 31, 2008

jgwhomeequip
  • 1902 Answers

SOURCE: how to rmove fuel from fuel tank of 2000 chevy express van?

Some fuel tanks have a drain **** that will allow you to drain all of the gas neatly. If you have a drain ****, it will be located at the lowest point on the tank. Loosen the valve and allow the gas to completely drain.
If your tank has no drain ****, you'll have to drain it by removing one of the fuel lines. The rubber hose that exits the tank at its lowest point will drain the tank fully. It will either be connected to an electric fuel pump, fuel filter, or to a hard fuel line that goes to the front of the car. Loosen the clamp on the end of the line that connects to the gas tank. Pull the hose off and allow the gas to run out of the tank into your container until it is drained completely.

Posted on Feb 07, 2009

  • 10 Answers

SOURCE: Wiring/electrical schematic info for a 2000 chevy express van

Check www.autozone.com.

Posted on Jun 14, 2009

  • 14036 Answers

SOURCE: I need the serpentine belt diagram for a chevy Express Van

DRIVE BELT DECAL SHOULD BE UNDER THE HOOD.OR YOU CAN GO TO DEALERSHIP GET ONE AUTO ZONE OR ADVANCE AUTO PARTS CAN GET YOU ONE.OR YOU CAN BUY A HAYNES REPAIR MANUAL IT HAS BELT DIAGRAM.

Posted on Mar 10, 2010

  • 4 Answers

SOURCE: Reverse and interior lights out, chevy express van

Fuse block under the hood. Driver's side, under the brake master cylinder. Number 18. TCB#2. Replace the fuse.

There is an under-engineered ground in the reverse circuit. If you back up with the dome lights on, it could blow that fuse. There should be some extra fuses under the cover of the fuse block.

Posted on Aug 05, 2010

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1996 Chevy Express 1500 w/5.0 bogging only when warm.


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Typically, the catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream 02 sensor reading should be fairly steady. Typically the P0420 code triggers the check engine light if the readings of the two sensors are similar. This is indicative of (among other things - such as faulty sensors in the "emissions loop") a converter that is not working as efficiently as it should be.

I do not believe that it is a problem with a valve/head gasket or cam.

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Diagonostic trouble codes reported p0171 p0174 p0302 2001 Taurus, only reports P0171


P0171 is system too lean bank 1, P0174 is too lean bank 2, and 302 is misfire bank 1. Look for vacuum leaks. If you don't find them, put a vacuum gage on it can check. The P0171 is almost always a vacuum leak. If not other possibilities are front O2 sensor is too old and should be replaced (if mileage is greater than 100k then replace). Try injector cleaner. Misfires are usually bad spark plugs, but could possibly be caused by insufficient fuel. I've never had a car of mine in bad enough shape to have that error.

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