Question about 1995 GMC Jimmy

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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 .

Loss of power on hills

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  • GMC Master
  • 1,250 Answers

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

Posted on Mar 25, 2014

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Posted on Jan 02, 2017

  • 36 Answers

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

  • 375 Answers

SOURCE: '04 GMC Yukon Denali Check Engine Light

Did u put in fuel shortly before the light came on? I own 2 service centers & the most common situation with "Check Engine" lights are because the fuel cap wasn't re-installed or not tightened. When you refuel make sure it "clicks" when putting back on. We don't charge for a "Code Reading" but a dealer will, don't go there. Go, like the others suggested. If it is the fuel cap & you re-install it correctly, the light will go off after a short drive. Good Luck. PS-Don't panic when the "Check Engine" light comes on unless it blinks, if that happens don't drive. PSS-RE: Murray's, Auto-Zone.......If it's a "Code" (the reader will give a #) the code book will tell you the problem. PSSS-Some1 please have Troy W's Mommy & Daddy take away his keyboard. Just because you can put together a "Lego" car doesn't make you a master mechanic. You only repeated what we said except you have a "Napoleon" complex against any1 plugging something in to a vehicle. It's the same as plugging in a light @ home. In conjunction with "kinder" nine out of ten time in my experience it usually is the oxygen sensor(s) which would be about right with the year model

Posted on May 18, 2008

  • 1 Answer

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
  • 2559 Answers

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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2992 Cadillac Seviile stalls, restarts - runs then loses all power - no power sterring. Turn car off and it immediately restarts, runs for a while - 10-15 miles then no power and stalls. This repeated...


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Check your vacuum hoses for broken, cracked or loose connections. Attach a Fuel Pump Pressure Tester to the service port on the fuel injector rail and monitor fuel pump pressure specially when engine is losing power. If CHECK ENGINE light is on, perform a DTC scan. Autozone, Checkers or similar Auto Parts stores perform this service FREE of charge.
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Ticking noise coming from engine, loss of power, runs very rough!


check inj thay do click but not very load but becuase it might be it damaged it is doing this

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Loss of power when driving up hill


It depends: how steep are the hills? Assuming you have the standard 4-speed or 5-speed gearbox, it's likely that the tiny engine (built for economy, not for power) is simply not generating enough torque to pull the car up in high gear. Have you tried simply downshifting? If the problem truly is the engine losing power and not just lugging due to being in too high a gear on a steep grade, you should check your fuel pressure and you may also want to check the condition of the fuel pump and feeder lines inside the gas tank. A 20 year old car will probably have some disintegration of the feeder lines, they may even be partly broken off inside the tank resulting in poor fuel flow, or disintegrated rubber may be gumming up the strainer or the pump itself. Personally, I'd replace the fuel lines, fuel filter and if low pressure still exists, the fuel pump as well.

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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.

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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.

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