Question about 2000 GMC Jimmy

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2000 GMC Jimmy hard to start problems

When fuel is throwm directly in the throttle body vehicle starts and runs ok until cold then problem re occour

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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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

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  • 6 Answers

SOURCE: heater goes from hot to cold

I WAS TOLD IN THE PAST TO GET RID OF THE ORANGE ANTIFREEZE AND PUT IN THE GREEN IN ALL MY VEHICLES CREATES MORE PROBLEMS THE IT CURES THIS IS BY A SHOP I TRUST.I HAVE A 95/98 AND 99 BLAZERS.I HAD PROBLEM WITH VERY LITTLE HEAT AFTER CHANGING THERMOSTAT. HAD TO GET AIR OUT OF LINES BUY RUNNING IT FROM COLD START WITH RADIATOR CAP OFF UNTIL THERMOSTAT OPENED AND LEFT IT RUNNING UNTIL I SAW NO AIR BUBBLES COMING OUT OF RADIATOR SEEMED TO CURE PROBLEM

Posted on Dec 20, 2008

picatudo
  • 239 Answers

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

you have a vacuum leak

Posted on Jan 07, 2009

  • 14036 Answers

SOURCE: 1999 GMC Jimmy Rear Brakes

where do you live meaning if you live on mountain or driving down steep incline every day you will ride brakes every day.that will wear on them a lot.use manual low1 gear coming down mountain.also buy a good brand brakes .i learned a long time ago if you pay more .it will last more.longer.

Posted on May 24, 2009

  • 1 Answer

SOURCE: 2000 GMC Jimmy won't start

i had the same problem and replaced the fuel pressure regulator. Cost about $45 at advance auto store or about $90 at napa auto stores. Once i replace that my truck started right yup and runs like a champ

Posted on Jul 13, 2009

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1 Answer

97 gmc siera on cold days have to dump fuel into throttle body to start, runs fine after??


look into throttle body while cranking.see if you see fuel spray.if not, low fuel pressure of pluged fuel filter. also coolant temp or tps sensor could be at fault.have vehicle sensors scan tested for values..

Dec 25, 2012 | 1997 GMC Sierra

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My 1995 gmc jimmy wont start but the fuel pump is fine AND THE FILTER IS OK HELP


Fuel injected or throttle body injection? Make sure its getting fuel delivered all the way to the intake.

Jun 20, 2012 | GMC Jimmy Cars & Trucks

1 Answer

My jimmy runs fine once it starts, but i have got to pour a little gas in the throttle body every time to start it


Fuel Pump. Fuel Pumps in some of the newer GMs cannot have a loss of more than 2-3 PSI otherwise cold start pressure is not there.

Oct 19, 2010 | 2000 GMC Jimmy

1 Answer

1999 JImmy after vehicle sits over 3 hours I start (not a problem to start) it will idle at 500 RMPs and start to putter and putter. If I hit the gas it will go to 3000 RPMS with no problem then once I...


Try cleaning the throttle body (throttle body cleanner ONLY). Uncover the TB (engine off) & inspect the butterfly by moving the throttle by hand, if the underside & down inside the TB has a bunch of carbon (black soot) that could hamper with the idle! Also, check the fuel pressure @ the rail, under 60 psi could cause bad idle. Air filter clean? Did you make SURE that the terminals under the spider injector wiring harness has NO pins bent over during connection?! Also could check the throttle possition sensor & the mass air flow sensor if need be.

Aug 25, 2010 | 1999 GMC Jimmy

2 Answers

1997 jimmy 4.3 liter hard start. Have to prime throttle body when


could be your battery is getting old they tend to lose performance in colder weather.

Jun 24, 2009 | 1998 GMC Jimmy

1 Answer

Hard starts in the morning even though replaced most parts


Check the power to the cold start injector. (it's only going to have fire for a few sec. after the key is turned on). If the fire is good, replace the cold start injector. This injector is activated for a few seconds when the engen temp is low to add a little fuel lower down in the intake and closer to the pistons.

May 20, 2009 | 1994 GMC Jimmy

1 Answer

1995 JIMMY HARD TO START & SOMETIMES WON'T.


Hi: Have owned 9 Blazers and Jimmy's. have never heard of a cold start switch on a Jimmy. If the engine is fireing I would rule out the coil for now. What you are describing sounds to me like low fuel pressure, if the pressure is not around 60 PSI then the injectors will not function correctly. If you have ever driven the vehicle for a while, stopped somewhere and it wouldn't start unril it has sat for a while then chances are the problem is the fuel pump located in the fuel tank.

Jan 09, 2009 | 2000 GMC Jimmy

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