Question about 1997 GMC Jimmy

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Hello ! Motor shakes while idling, 1997 gmc jimmy4x4, it's not the motor mounts it has 300 000 km on it !

& also new spark plugs but not sure if Thier pregap,when I bought them

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: Freeze Plug Leak on my 1996 GMC Jimmy

i would hardly call this repair simple or inexpensive. the part itself yes the labor probably not. i have made this repair myself to my 97 jimmy if you have 4 wheel drive the transfer case up front makes this repair next to impossible from the underside of the car plus the fact that it is behind the motor mount means the the mount must be removed. this involves raising or removing the motor. simple? on a car of this age you will probably find (as i did) the motor mounts are damaged might as well replace them too the parts are fairly inexpensive. also look into replacing all the plugs so you dont have to do this again in a few years. oh yea use the proper antifreeze mix in your radiator water is what rusts out the plugs

Posted on Nov 17, 2008

  • 740 Answers

SOURCE: set timing 1997 jimmy

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

  • 11 Answers

SOURCE: como hago para poner a tiempo el motor de gmc

you need to disconnect the wire in the rh floor board of cab and then you can check timing.

Posted on Nov 13, 2009

  • 14036 Answers

SOURCE: 96 gmc vortec will not start

I AM LOOKING AT TIMING ISSUES OR INTAKE MANIFOLD LEAK.OR EGR VALVE STUCK OPEN.

Posted on Dec 30, 2009

  • 169 Answers

SOURCE: 1996 gmc k1500 4x4 5.7 vortec motor no start keep

Replace the coolant sensor on the front of the intake manifold.The coolant sensors on this engine does go bad and wont set a check engine light. The sensor will read about -32 to 0 degrees when they do go bad. The computer thinks it is that cold and sends tons of fuel to the engine. If you try to start the engine with the throttle depressed to the floor it puts the fuel system in clear flood mode and wont fire the injectors. Engine will start then and run very rich. The coolant sensor has two wires on it and sometimes you need to replace the wiring pigtail going to it as the sensor can seep coolant into the connector and corrode the terminals. All the parts are available at pepboys and autozone or napa. Good luck

Posted on Jan 05, 2010

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I have a 2004 gmc envoy with a 4.2 motor....it has a slight vibration while at idle but my main concern is why my entire motor and vehicle shakes violenty when i shut the vehicle off.


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Ignition Problems
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