Question about 2005 GMC Sierra 2500HD 4WD

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Troubleshoot to fix a PO102 dtc on my 2000 gmc 2500 series 3/4 ton van with5.0 liter engine

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

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SOURCE: Thermostat problem? 99 GMC savanna cargo 2500 5.0 liter

jt\\it could be the water pump or the thermostat giving you problems

Posted on Jan 22, 2009

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SOURCE: P0101 p0171 p0174 engine codes

Those are lean codes and a MAF (P0101) code. Make sure the MAF sensor is plugged in, and there are no leaks/ loose hoses between the air filter and the engine. You may have a vac leak at the intake also, but check these first, If all appears OK a repair shop will need to check it out for you.

Posted on Dec 16, 2009

wracefans24
  • 1985 Answers

SOURCE: Check engine light on, code P2761

P2761=Torque Converter Clutch Pressure Control Solenoid Control Circuit/Open

Posted on Dec 18, 2009

  • 14036 Answers

SOURCE: recently I had my 2000 gmc 2500 6.0 liter truck

ROUGH IDLING CAN BE CAUSE BY MANY THINGS.I AM LOOKING AT LEAKING VACUUM HOSES OR INTAKE MANIFOLD GASKET LEAK.DIRTY FUEL INJECTORS AND WORN ENGINE VALVES WILL CAUSE ROUGH IDLING.ALSO LOW IDLE SPEED CAUSE ENGINE TO RUN ROUGH.

Posted on Apr 18, 2010

  • 14036 Answers

SOURCE: diagnostic trouble codes dtc po420

CODE PO102 IS MAF SENSOR CIRCUIT LOW FREQUENCY CONDITIONS / CODE PO420 IS CATALYST SYSTEM LOW EFFICIENCY BANK 1 CONDITIONS. BAD MASS AIR FLOW SENSOR WILL AFFECT CONTAMINATE DAMAGE CATALYTIC CONVERTER DUE TO RICH EXHAUST EMISSIONS.

Posted on Jan 26, 2011

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1999 Dodge RAM 2500 ¾-Ton Pickup 5.9 liter V-8 VIN "5" HDC

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1999 Dodge RAM 2500 ¾-Ton Pickup 5.9 liter V-8 VIN "Z" LDC

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We changed spark plugs & wires on our 1991 GMC & seem to have the order wrong on the distributor cap because truck won't start. need diagram


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Nov 28, 2010 | 1991 GMC C2500

1 Answer

Sprak plug Wires Need To Be Installed Correctly


You have several RAM sub-models in here:
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RAM 1500 1/2 ton 4WD
RAM 2500 3/4 ton 2WD
RAM 2500 3/4 ton 4WD
RAM 3500 1 ton 2WD
RAM 3500 1 ton 4WD

Chrysler Full-Size Trucks 1989-1996 Repair Guide
To avoid confusion, remove and tag the wires one at a time for replacement.


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Fig. 1: 2.5L 4-cylinder Engine. Engine Firing Order: 1-3-4-2. Distributor Rotation: Clockwise


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Fig. 2: 3.9L V6 Engine. Engine Firing Order: 1-6-5-4-3-2. Distributor Rotation: Clockwise


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Fig. 3: 5.2L and 5.9L V8 Engines. Engine Firing Order: 1-8-4-3-6-5-7-2. Distributor Rotation: Clockwise


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Fig. 4: 8.0L V10 Engine. Engine Firing Order: 1-10-9-4-3-6-5-8-7-2. Distributorless Ignition


Hope helped with this (remember rated this help) Good luck.

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I changed the intake manifold on my 1997 gmc safari van that has the 4.3L engine. Now the check engine light comes on. it puts out 3 codes ( po102 ) ( po300 ) and ( po507). What did i do wrong and where...


its soaking air somewere around the manifold make sure you thigten the bolts on the wight pattern if yoou dont know the pattern start from te center to the outside or reset the computer just unhooked the negative cable from the batery for 5 minutes,

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