Question about 1993 GMC Jimmy

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1993 gmc jimmy 4.3 vortec loud ticking

Light ticking sound when its started when i get under its really loud like almost banging but not close its slight tho in drive its loud but when i drive its fine it goes waya till i take my foot off of the gas

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Pull your valve covers and look at you rocker arms see that none are lose if there isn't any lose then you may have a bad lifter witch once you pull your valve covers you will see rods on the far side of the rocker arms, at the bottom of every rod there is a lifter witch rides on the cam shaft. to fix this you have to tear down the top or the whole motor, good luck

Posted on Feb 25, 2009

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Posted on Jan 02, 2017

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I have a 99 jimmy with the 4.3 vortec. I have spark, and 61 pounds of fuel pressure. when turned over it act like it starves for fuel and is so close to starting but wont even with starting fluid. I d


It can take 70psi to start a vortec engine cold. It should start on starting fluid tho.
You might want to look at a couple of spark plugs to see if they are in good enough condition to run. The spark could be weak under compression if the plugs are worn.

Aug 05, 2012 | 1999 GMC Jimmy

1 Answer

I have a 1997 GMC Jimmy with a 4.3L Vortec V6. It will turn over but won't start. It's getting fire and fuel. All the dash lights come on when the ignition is turned on and you can hear the fuel...


On the vortec engines they require 56 pounds of fuel pressure to start a few pounds shy of that you have a dead vortec you will need a fuel pressure guage to verify

Nov 30, 2011 | 1997 GMC Jimmy

1 Answer

Car won't fire


if you have checked for spark at the spark plug end of the wire and it was not an sporadic,then you need to check the fuel pressure at the fuel rail reed valve,it should be at least 50psi ti start an engine thru the injectors

Dec 10, 2009 | 1993 GMC Jimmy

1 Answer

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no, it sounds like you need brake pads or maybe even a caliper bolt feel out.

Aug 20, 2009 | 1999 GMC Jimmy

1 Answer

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

Aug 10, 2009 | 1996 GMC Jimmy

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1993 jimmy vortec keeps stopping


change he fuel pressure regulator

May 13, 2009 | 1993 GMC Jimmy

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Loud Ticking/knocking Noise From motor; What is it?????


could be yur water pump going do you leak anti freeze or oil? also if a older model could be ot of timeing check your distributor cap and see if its loose
good luck

Jan 21, 2009 | 1996 GMC Jimmy

2 Answers

95 Jimmy


is it the 4.3 vortec or the 2.8 liter? and is there any check engine lights on? if no light then its more likley to be the throttle boddy is dirty and needs clean out you can buy spray and spray it while idleing or take it off and clean it with a tooth brush and kerosene....

Nov 11, 2008 | 1995 GMC Jimmy

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