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2001 GMC Jimmy misfire - Jimmy GMC Cars & Trucks

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Most misfires are from injector problems /low fuel pressure problems
unless you can be more specific , clean/check injectors
check fuel pressure
check coil packs if individual coils

Posted on Dec 13, 2016


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SOURCE: 2001 gmc jimmy engine warm but heater blows cold air

Disconnect the heater hoses from the water pump and the intake manifold. Get a compressor and blow out the hose (put the air hose into the the hose that came off the mainfold. then flush the system and replace the antifreeze.

Posted on Dec 12, 2008

  • 239 Answers

SOURCE: 2001 gmc jimmy defroster-heater blower will not direct heat

you have a vacuum leak

Posted on Jan 07, 2009

  • 4669 Answers

SOURCE: low pressure knob for gmc jimmy 2001

It is on the accumulator. Passenger side near the air box. The silver can.

Posted on Apr 21, 2010

  • 450 Answers

SOURCE: my cylinder is misfiring on my 2000 gmc jimmy

replace fuel filter, air filter, spark plugs, wires, distributor cap /rotor, if you have one. new oil with your filter ? just thought I'd ask, have a auto parts store pull code to see why your service engine soon light is on. this will tell you what sensor needs replaced, I'll bet its the oxygen sensor !

Posted on Feb 23, 2013

  • 16210 Answers

SOURCE: Starting issue in a 2001 gmc jimmy 4x4

MY opinion is the fuel pump pressure is low and allowing vapor in the lines that dissapates over time. But when you make short trips the fuel does not let the vapor out.

Posted on Dec 08, 2013

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I have a 2001 GMC Jimmy and a computer check has

if it was me i would give these guys a call and talk to them they sells only GM-parts its Schram auto & truck parts 1800-292-1032 and they website is and maybe they can help you narrow it down good luck Michigan Man.

May 09, 2009 | 2001 GMC Jimmy

1 Answer

2000 gmc Jimmy misfiring

change fuel filter ,have inject. system cleaned

Mar 11, 2009 | 2000 GMC Jimmy

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