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1995 GMC Jimmy Support Question

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Question posted by dfwcris on July 24th, 2012

What Is Wrong With My Jimmy???

it backfires then bogs up and down then shuts off. sometimes it will run for about 15 minutes and then do this, sometimes it does it right from start, and sometimes it just wont start at all. Does anyone know what could be wrong? I have taken it to 6 shops already and dropped 850 for a sensor and that didn't fix it. I don't wanna drop anymore money unless I know for sure what is wrong

Current Answers

Answer #1: Posted by roadrunnertim on July 25th, 2012 12:16 PM
This answer was accepted by the poster of the original question.
roadrunnertim

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I can't imagine what sensor the garage replaced for $850, but I do know that they ripped you off. 

My best guess is the crankshaft position sensor is going bad. That would cause all of the symptoms you describe. They cost around $75 for your vehicle and it's very easy to replace it by yourself. 

It's located behind or next to the crankshaft pulley (harmonic balancer, looks like a small wheel). Here's what it looks like:

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Related Manual Pages

Owner's Manual - Page 4

...to service, keep in mind that your GMC Truck dealer knows in U.S.A. 11 .. When it your to Owner satisfaction,...Michigan @Copyright1994 General Motors Corporation, GMC Truck Division All Rights Reserved Second Edition Printed in your vehicle best and is ...maintenance of your 1995 GMC Jimmy and to provide important safety information. lnfroduction 1995 GMC Jimmy Owner's Manual Welcome This manual...
Owner's Manual - Page 5

...name "General Motors of Canada Limited" for AUTOMOTIVE SERVICE EXCELLENCE 11 1 ... About Driving Your Jimmy As with other vehicles of control or an accident. Besure to Owners and Drivers About This ...please leave this manual in loss of this type, failureto operate this manual. We reserve the right to make changes in this manual. (See "Driving Guidelines" and "Off-Road Driving With ...
Owner's Manual - Page 6

... others could hurt you if you learn about things that could be hurt. GMTRUCK General Motors, GMand the GM Emblem, GMC and the GMC Emblem, JIMMY and the JIMMY Emblemare registered trademarks of all that pictures and words work together toexplain things quickly.
Owner's Manual - Page 23

...belt should go over the shoulder and across the chest. In a crash,this ? And you slid under the lap belt. Q: What's wrong with this applies force to slide under it, the belt would apply force at your abdomen. The shoulder belt should be less likely to ...The safety belt locks if there's a sudden stop or a crash. If you 'd be worn low and snug on the hips, just touching the thighs.
Owner's Manual - Page 24

Q: What's wrong with this? 1-14
Owner's Manual - Page 25

Q: What's wrong with this? A: The shoulder belt is worn under the arm. It should be worn over the shoulder at all times. 1-15
Owner's Manual - Page 67

... your vehicle is , then turn the steering wheel leftand right while youturn the key hard. But turn off (for example,...Don't operate accessories in the ACC position for driving. This starts your ignition, steering wheel and transmission. If it is off...accessories in motion whilethe engine is all the way in. START - OFF - Using a tool to force it could ...15 This position locks your engine...
Owner's Manual - Page 94

...fluid beforethe windshield washer.If you apply your foot on the wiper, press WASH. The wipers will shut off . 2-42 However, the rear window washerwill run out of your fluid level. If you have an automatic transmission and you can really help on... speeds below about 25 mph (40 km/h) or more without keeping your brakes push the or clutch pedal, the Cruise Controlwill shut off .
Owner's Manual - Page 103

...light. 2-51 Mirrors Inside Mirror Press the tabunder the mirror to RUN or ACC. They will also stay on for 15 seconds when the interior light switch on the dash is turned to ... the lighted mirror, the lights will also stay on for approximately 15 seconds after you . The lights will automatically come on for approximately 15 seconds when either frontdoor is opened, or until the ignition is...
Owner's Manual - Page 117

... to let you Know at a glance how your vehicle is designed to drive safely and economically. 2-65 Instrument Panel 1. Vents 2. Cigarette Lighter 6. Light Switches 9. Rear Defogger (Option) 11. Shelf 13. Ashtray 12. Rear Hatch (Option) Instrument Cluster Your instrument cluster is running. Instrument Cluster 3. Parking Brake Release 8. Glove Box 5. Audio system 6 . Fog...
Owner's Manual - Page 120

...part describes the warning lights and gages that something is wrong before it Warning lights and gages can be a problem,...know they're working. You should If not be on briefly when youstart the engine just to a higher gear, or lift your engine speed is running... with your engine speed is running at 2,000 revolutions per minute (rpm). So please get to know when there'sa problem with ...
Owner's Manual - Page 137

...comes on again. Theselines heat your vehicle has this option, the rear window will shut itself off . 3-3 For best results, clear the window of the defogger.Your warranty...defogger. It will stay on for 5 - 7 minutes, then turn the defogger on , then release it. To turn thedefogger off . The defogger will havelines running across the glass. Rear Window Defogger (Option) If...
Owner's Manual - Page 150

...a secured radio, the radio won't turn on and "LOC" will show the numbers as follows.Pause no more than 15 seconds between steps. 5 . Press the 1 and 4 buttons together. Press BAND and "OOO" will turn on....secret code before the radio will appear again. Now you how to ACC (Accessory) or RUN position. To Lock The System: 1. This time "SEC" will appear - Press the SET button. Enter ...
Owner's Manual - Page 189

...feel really uncomfortable from rolling. Then, shut the engine off and close the window...it keeps get out of the vehicle and do it goa little faster than just idle. This uses less fuel for awhile. You will need a well-...the heater run the engine, make it as little as possible. If your vehicle from the cold. Start the engine again and repeat this only when you run for the ...
Owner's Manual - Page 200

... trailer wheels. If be damaged. Apply your regular brakes, but gear for a few minutes before turning the engine off immediately after towing at normal altitudes. the 3. When the ... run while parked (preferably on levelground) with the automatic transmission in NEUTRAL (N). 6. People can injured, and both your vehicle and the trailer can be something goes wrong, yourrig could start to...
Owner's Manual - Page 217

... level should be no leak, start theengine again. ADD mark. See if the fan speed increases when idle speed is boiling, don't do anything else until it cools down . If it doesn't, your vehicle needsservice. I NOTICE: Engine damage from running your engine without coolant isn't ... radiator hoses, heater hoses, radiator, water pump somewhere or else in thecooling system. Turn off the engine. 5-15
Owner's Manual - Page 255

...A cold check is made after the vehicle has been sitting for three minutes or more. 6-15 Let the engine run at idle for about 15 miles (24 km) when outside temperatures are above 50°F (10...system parts, starting a Be sure fire. If it 's colder than 50°F (10 O C), drive the vehicle in hot weather. Thiswill give you check your transmission fluid. Keep the engine running. 0 With ...
Owner's Manual - Page 269

... on the brake pedal firmly). Brake Wear Your vehicle has front disc brakes and reardrum brakes. NOTICE: Continuing to normal height, or if there is wrong with worn-out brake pads could be removed and inspected each time the tires are firstapplied or lightly applied. Adjust them by backing up and...
Owner's Manual - Page 270

..., when your braking system - for 25 days or more, take off the black, negative (-) cable from running down and you have to add water to learn how prepare your front and rear brakes can change - for... no longer work well together the vehicle isto have new ones put in the wrong replacement brake parts. This will help keep your battery from the battery. to longer storage Contact your...
Owner's Manual - Page 313

... vehicle. Improper vehicle maintenance or the removal of important components can increase the level of the air we breathe. Improper fluid levels or even the wrong tire inflation can significantly affect the quality of emissions from your vehicle, Your vehicle needs these services to help keep your vehicle in good condition...

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