Question about 2001 GMC Yukon Denali

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2003 gmc jimmy loses power on steep hills check engine light begins to blink stalls upon restart light is gone and runs great

2003 jimmy loses power on hills check engine light blinks stalls

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DO YOU ALSO LOSE POWER ON HARD ACCELERATION? IF SO CHECK THE FUEL FILTER AND THE CAT FOR RESTICTIONS. IF THE CEL IS BLINKING OR STAYING ON CHECK CODES FIRST. THE STORED CODES WILL GIVE YOU A GOOD PLACE TO START.

Posted on Dec 08, 2014

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Check for trouble codes.

Posted on Dec 08, 2014

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Posted on Jan 02, 2017

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SOURCE: HARD TO START WHEN COLD AND WHEN IT DOES IDLES BAD AND STALLS.

Try replacing the ignition control module it is located under the distributor cap Cost is around $30.

Posted on Jan 11, 2009

registerthis
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SOURCE: 2003 Hummer H2 check engine light is on steady

This is Obama's new energy policy to to save gas !

Seriously, go to Autozone and they'll read the code for free.

Posted on Jan 27, 2009

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SOURCE: my 2003 gmc yukon stalls

Had similar problem with my 2001 pontiac grand prix. replace engine coolant temperature sensor. Vehicle may start , but run very poorly, blowing black smoke, running very rough and misfiring. Cost $15 autozone.

Posted on Feb 03, 2009

rockitman187
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SOURCE: Losing power/acceleration on hills

Change or clean the EGR valve and install a new catalytic converter.
This should take care of the problem.

Posted on Mar 20, 2009

  • 38 Answers

SOURCE: 97 gmc jimmy loseing fuel power

The first thing I would recommend is that you change your fuel filter and recheck your fuel pressure once you do that. If is persists I would check your fuel pressure regulator as well. A fuel pressure regulator for a 1997 GMC K2500 ran about $45.00 and a fuel filter runs about $7-10.00. That's a lot cheaper to go that route first than to have to spend $350.00 for a new (Lifetime Warrenty) fuel pump that comes with a new sock and sending unit.

Posted on Mar 29, 2009

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1 Answer

2003 gmc jimmy on hills loses power check engine blinks then stalls upon restart performs great runs well on flats and even not steep hills .


when engine light blink it is only one thing.......misfire you could have P0300,P0301 and so on
P0300 is multiple misfire
P0301 is cylinder no 1 misfire,the last number tell you the no cylinder
hope it helps

Mar 24, 2014 | 1995 GMC Jimmy

1 Answer

Loss of power& at times stalls Fuel pressure


LOSING POWER WHEN RUNNING COULD BE LOOSE BATTERY CABLE.FAULTY ALTERNATOR.NOT CHARGING BATTERY.CHECK BATTERY VOLTAGE SHOULD BE 12.6 VOLTS.WITH ENGINE RUNNING ALTERNATOR POWER OUT PUT SHOULD BE 13.5 - 14.5 VOLTS WITH ENGINE RUNNING IF NOT ALTERNATOR BAD.CHECK ALTERNATOR BATTERY FEED WIRE CHECK ALTERNATOR VOLTAGE REGULATOR WIRES AND CHECK ALTERNATOR FUSE AND MAKE SURE DRIVE BELT NOT LOOSE.BESURE TURN OFF RADIO BEFORE REMOVING NEGATIVE BATTERY CABLE TO KEEP FROM LOSING RADIO CODE.

Mar 05, 2011 | 2000 GMC Jimmy

1 Answer

I have a 1997 jimmy and it cranks up fine but it starts bogging down when i am driving and when i try to climb a hill


You may have a clogged up egr valve. When the egr valve gets clogged up with carbon, the truck will run rough, surge stall, and be very anemic on power. Is the service engine soon(check engine) light on? I've dealt with this issue before, and those 4.3 v6's tend to get egr issues. Try this: when it bogs and runs rough, stop truck, open hood, and tap on egr valve base( where it bolts to engine) if rough running clears up, there's your problem. Egr valve is located on front of engine just to the rt of alternator bracket.

Mar 07, 2010 | 1997 GMC Jimmy

1 Answer

When im going up hill my jimmy loses power i give


yes i could be slipping.try manually shifting down going up hill.

Jan 15, 2010 | 1997 GMC Jimmy

1 Answer

Car died after stopping at a light and proceeding up a small hill


Let's start with the simple things. Change the fuel filter first and check the fuel pressure at the shredder valve. The fuel pressure should be 60 to 65psi with the fuel line pressurized and should drop by 5 psi when engine is running. Keep me posted, be glad to help.If there is an Auto Zone around your area you can lone out a fuel pressure gauge and they will have the step y step instructions for you to get the job done. Good luck.

Jun 28, 2009 | 1997 GMC Jimmy

1 Answer

It just stoped running


Depending on how much gas was in the tank and how steep the hill was, the fuel pump most likely started pumping air instead of gas, thereby stalling the engine.

May 10, 2009 | 2003 Ford Ranger Regular Cab

1 Answer

Losing power/acceleration on hills


Change or clean the EGR valve and install a new catalytic converter.
This should take care of the problem.

Mar 20, 2009 | 2002 GMC Savana

1 Answer

Car loses power


When the check engine light is flashing that indicates an engine misfire, which is catalyst damaging. Because you said that it generally only happens up a long hill or at higher speed, and it doesnt happen all of the time, most likely you are in need of a full tune up.

Dec 11, 2008 | 2003 Hummer H2

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