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GMC Jimmy Fuel System

93 messages,  Last post on Aug 17, 2009 at 8:23 AM

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What is this discussion about? GMC Jimmy, GMC, Fuel System, Truck

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#77 of 93 Re: 2001 GMC Jimmy Running Erratic [jstew41] by singe Feb 02, 2009 (6:32 pm)
Replying to: jstew41 (Dec 30, 2008 11:41 am) Hi,   Did you find a solution for this problem? I have the same vehicle with nearly the same problem.   Reply to this message with any info. It will email me automatically. Thanks!
#78 of 93 studdering while at steady speed by tiffs26 Mar 11, 2009 (10:40 am)
I have a 2000 Jimmy 4.3 vortec v6. while driving at a steady speed, there is a small hesitation or studder. It seems to only happen if there is 3/4 tank or more. It doesn't matter the temp or weather. I don't know where the fuel pressure regulator is. Can someone tell me where it is so it can be checked. Or any suggestions of what else could be wrong. BTW just changed plugs, wires, cap, rotor, fuel filter, air filter. Not idea.
#80 of 93 fuel systems by shootert Mar 21, 2009 (1:37 am)
tiffs26 catylic converters problems normaly cause your vehicle to run slugish with no power. Before costing a lot of money to replace take exhaust pipe loose from manifold and drive around block. It will be loud but if it does not run much better it's not the converter. Bolt it back up and look for a different problem.
#81 of 93 re studding while at a steady speed by bud357 May 20, 2009 (10:28 am)
right behind the master cylinder on the drivers side two little black boxes with wire going into it on the fire wall.
#82 of 93 I have a 1993 gmc jimmy by bud357 May 20, 2009 (10:29 am)
when you step on the gas going down the road it acts like it wants to bog out. like it is getting to much fuel. then when i let off th gas it picks back up speed. what can cause that. Replies to this message: shootert (May 20, 2009 11:38 am)
#83 of 93 Re: I have a 1993 gmc jimmy [bud357] by shootert May 20, 2009 (11:38 am)
Replying to: bud357 (May 20, 2009 10:29 am) Sounds like your fuel filter is starting to stop up.That's what mine was when it acted like that.
#84 of 93 $100 ignition question by jpmacky Jun 05, 2009 (2:38 pm)
My 99 Jimmy has power going to the igniton coil through the 2 wire plug but does not have power coming out of it. When you first crank it over you can get one spark out of the ignition coil wire then nothing.Because of that im not geting any spark to my distributor and nothing out of my distributor Replies to this message: tech1help (Jun 06, 2009 8:26 am) jpmacky (Jun 08, 2009 6:42 am) tech1help (Jun 09, 2009 10:24 pm)
#85 of 93 Re: $100 ignition question [jpmacky] by tech1help Jun 06, 2009 (8:26 am)
Replying to: jpmacky (Jun 05, 2009 2:38 pm) check your crank position sensor.if it is no good it will not allow ignition coil to give spark.it has three wires and is located at the front bottom right of engine.it has a 10mm hex nut with a bracket mounting it to the engine.you remove it then check it for ohms.it cost around $40 at your local autozone.so that leaves you $60. Replies to this message: jpmacky (Jun 08, 2009 6:42 am) tech1help (Jun 09, 2009 10:24 pm)
#86 of 93 Re: $100 ignition question [tech1help] by jpmacky Jun 08, 2009 (6:42 am)
Replying to: tech1help (Jun 06, 2009 8:26 am) I messed with the sensors over the weekend and was able to get it to fire, but only once. Now when you turn it over it will fire one initial spark and then nothing. Replies to this message: tech1help (Jun 09, 2009 10:24 pm)

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