Question about 1997 GMC Jimmy

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Set timing 1997 jimmy

How do i set timing on a 1997 gmc jimmy with vortex motor?

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  • 9 more comments 
  • grgmoreton Jan 05, 2009

    i  changed the intake manifold gasket,so i had to remove the distributor, i marked and removed when i started to put it back couldnt find the mark so i stopped 

  • grgmoreton Jan 07, 2009

    i haven't set the timing yet ,will the jimmy run if timing isn't set and what type of noise will it make?

  • grgmoreton Jan 07, 2009

    it starts but is making a clunking sound,im going to set the timing as your directions, but is the clunking  normal when timing is off? 

  • grgmoreton Jan 07, 2009

    thank you i will try that and get right back too you

  • grgmoreton Jan 07, 2009

    it hesitated and stumble but kept running ,also making a screeching sound, i asked a mechanic in town he said i must have drop something in the motor when i changed the gasket ,but i counted all tools nuts and bolt and i am not missing any and the oil is the color of chocolate milk

  • grgmoreton Jan 07, 2009

    i change the manifold gasket because it was leaking coolant from the top of motor,when i remove the intake manifold the gasket it was totally gone in the motor too so coolant may have got in then .There is no oil in rad  no white in filler

  • grgmoreton Jan 07, 2009

    thank you for all your help i will let you know how it went when i'm done

  • grgmoreton Jan 08, 2009

    i set the timing this morning ,my jimmy is running great thank you for all your help

  • O Mclean May 11, 2010

    Ignition timing or timing Chain??

  • willardmina2
    willardmina2 Jul 15, 2013

    it starts easy and idles great on flat roads it runs like it should just trouble getting it to go up a hill from a stop

  • Anonymous Mar 16, 2014

    where is the abs fuse for a 1997 gmc jimmy



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  • 740 Answers

Ok that's pretty simple Put cylinder # 1 on TDC= top dead center on the (compressionstroke piston all the way up). Mark on metal part of distributor (with marker) where the number one is on the cap( that's where the number 1 wire plugs in) Then in-plant distributor make sure that rotor point is pointed to #1 on the cap, turn distributor shaft until this is achieved or as close as possible try to center shaft so you can adjust... ****** or advance to fine tune after you in-plant distributor if needed. Contact if you need more help . Good Luck

Posted on Jan 06, 2009

  • 4 more comments 
  • O Mclean Jan 07, 2009

    If its not too much off it may start, but may hard start and run funny like shaking and low power on take off etc. However if it really off it will NOT start.

  • O Mclean Jan 07, 2009

    Can be does the vehicle have power when you try to DRIVE if it doesn't then that a sure tell tail sign that timing is OFF. Try to take of fast by gunning it should hesitate stumble or even cut off. Let me know... what happened

  • O Mclean Jan 07, 2009

    Oh No........if the oil looks like Chocolate milk then you have a bad Head Gasket. Check under oil filler cap for creamish whites reside and check in radiator for oil mixing. I'm starting to believe that you have a bad head gasket(Atleast) or may be a caked water jacket in head.

  • O Mclean Jan 07, 2009

    OK so that's how it got in there just follow the steps I told you and get the IGNITION TIMING right and you should be good to go... Sorry to alarm you like that I actually forgot that you changed the intake Contact if you need more help. Good Luck.

  • O Mclean Jan 07, 2009

    You're Welcome Good Luck

  • O Mclean Jan 08, 2009

    GOOD... Your Welcome



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Ok i need your help I got a 95 gmc jimmy with a 4.3 vortex that's not starting I got fuel coming to the filter but no fuel going to the motor anybody got any ideals?

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I hav a 98 gmc jimmy rwd 4.3 vortex vin# w it knocks all the time gets louder as u accelerat sound like it in the middle of the engine

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How long to install intake gasket on 97 gmc jimmy 4.3 vortex

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Apr 05, 2010 | 1997 GMC Jimmy

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Where about is the oil filter for a v6 vortex it is a gmc jimmy

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Timing Problem??

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Apr 29, 2009 | 1997 GMC Jimmy

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