Question about 2001 GMC Jimmy

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High rpm at idle

My jimmy rpm at idle has started running at very high idle already caused one accident due to high rpm at red light

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  • 147 Answers

Check the vacuum hoses, and the intake manifold gasket for a leak.

Posted on Jan 04, 2015

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 217 Answers

SOURCE: 1995 Jimmy Rough Idle

w/o much more info it sounds like it needs a good tune up plugs wires fuel filter pcv vave throttle bore clean and injecter clean,try to do most of this your self it is costly

Posted on Jan 18, 2009

  • 634 Answers

SOURCE: 1989 gmc jimmy s-15 idles high on start then idle

best thing to do is go to a big parts store and have them scan error codes usually they do for free and they can help find whats wrong u find how to repair, a chiltons manual for around $25 can help u with many repairs with diagrams and step by step help, also u can call several parts stores ahead of time and ask if they do free scans

Posted on Jul 08, 2009

iambanshee74
  • 3489 Answers

SOURCE: I have A 1993 gmc jimmy,It has A rough idle,idels

this is related to the egr system and makes sense when you describe a rough idle. the egr is probably stck open slightly. remove and attempt to clean with carburretor cleaner. it also helps to have a vacuum pump so you can work the diaphragm up and down. happy holidays

Posted on Dec 28, 2009

daves944
  • 1050 Answers

SOURCE: 96 Jimmy 107,000 miles. Idles high at

You have a vacuum leak somewhere. Possibly an intake manifold gasket or a vacuum hose that has come off. Open the hood with engine running and see if you can hear a hissing sound. You can also buy a can of aerosol carb cleaner and try spraying it at suspect locations. The carb cleaner will cause the engine speed to change if you hit the spot where the leak is.
Happy New Year,
Dave

Posted on Dec 31, 2009

rfoulds85
  • 128 Answers

SOURCE: 1996 gmc jimmy 4.3 v6

You should have your fuel pressure checked the problem is one of two things It is either your fuel pump or your fuel pressure regulator. It goes to high idle because it is starving for fuel.

Posted on May 01, 2011

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1 Answer

2001 kia sportage will brake lit switch cau the truck stall whil driving


Yes, If your idle RPM is too low it can kill the engine due to the high current of the brake lights will cause a stall.

Most cars use an RPM idle of 750 to 775 RPM. Check your manual then increase your idle a little.
Hope this helps.

Mar 23, 2015 | 2001 Kia Sportage

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Runs very rough and idles at 950 rpm, is this fast?


Sounds like a vacuum hose leak. Look under the hood for any cracked vacuum hoses and replace. listen for hissing noise.

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After battery in my 2001 jimmy manual 5 speed battery was run low till almost dead twice in 24 hour period, due to leaving key on too long while not running, it started after using jumper cables both...


The reset rate for vehicle computers vary by manufacturer, but 50-100 miles sounds good for the relearning process. As with the RPM's climbing unexpectedly, as a precaution I would look for a vacuum leak under your hood... it will be a hissing sound around some rubber hoses, as this can cause the RPM's to fluctuate and possibly give check engine light codes.

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1987 ford tempo 2.3 Litre fuel injected will idle


this sometimes occurs with age due to egr and intake becoming carbon filled , inturn requireing more vacuum inturn raising rpm to keep up , check all vac lines for poss leaks this will cause prob , to check for leaks crank engine let idle use can of wd40 or starting fluid and spray lightly around suspected area , if rpms raise when u spray then u have found ur leak

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My car slams when put into drive. is it the idle


Yes, sounds like the idle speed is too high. If you keep driving like that, you will fry the torque converter / turbine. Since idle is computer controlled, you will have to take it for service tune up. There is one possibility that the rich, high rpm idle used for cold start is not disengaging properly after the engine warms up. Air conditioning will raise the idle speed by a couple hundred rpm, so avoid using it until you have the problem fixed. BTW.....warm engine rpm in idle, and neutral should be around 700-800. Anything over 900-1100 will result in a hard shift into 1st gear and dragging at stop lights.

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Hi, you problem is the rail oil pressure sensor having a high voltage input -  P0193 code set . This will also cause your faults . 
Change the sensor which is under the cam cover and the smaller of the two there and it will run ok .
You need the sensor set up on a tech II after fitting to run at its best.

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Hi, I have a 2006 Altima with 31,500 miles. Recently, the engine start shaking when car is Idle but I still feel the shake when driving or at red lights. My second problem is a weird loud (humming) noise...


You don't need to change the spark plugs since it has only 31.5 K. The plugs should last 60K. There is a an adjustment at the gas cable end at engine to increase the idle a little bit. You can increase rpm at idle to 600 RPM. Since your RPM at idle is low that why it is shaking at idle, red lights. Let me know it it is shaking at high speed ( 2500 RPM)

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