Question about 1999 GMC Yukon

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1999 yukon spark plug diagram - 1999 GMC Yukon

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Firing order 1-8-4-3-6-5-7-2. looking from front of vehicle driver-side front to rear 1-3-5-7 passenger-side 2-4-6-8. hope this helps Tim 1999 yukon spark plug diagram - moz-screenshot-1.png

Posted on Oct 16, 2010

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Posted on Jan 02, 2017

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SOURCE: i need the spark plug wiring diagram for a 1998

Here you go: 868f850.png

Posted on Dec 11, 2009

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countrysi248
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SOURCE: what is the spark plug diagram for the chevrolet

8 7 1 8 4 3 6 5 7 2 firing order
6 5
4 3
2 1

front
of
engine

Posted on Sep 23, 2009

kirkx
  • 2019 Answers

SOURCE: 1999 yukon 5.7 not starting, getting fuil,

Sounds like the ignition coil. You can take the coil in to places like Autozone and they can check it for you. Could also be bad plug wires, resistor in rotor, etc., but not likely.

Posted on Jan 16, 2010

SOURCE: 1999 Yukon Denali spark plug wiring diagram

driver side of engine is odds from radiator to fire wall is 1-3-5-7
Passenger side from radiator back is evens 2-4-6-8-
FIRING ORDER IS 1-8-4-3-6-5-7-2-

fae8bb5.jpg

Posted on Feb 15, 2010

rfoulds85
  • 128 Answers

SOURCE: spark plug wires are arcing

If the wires are arcing that means that they need to be changed they have worn out and they can no longer keep the high voltage inside the wire just replace them about $100 and all your problems will be solved

Posted on May 05, 2011

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  • 1997 Yukon has the 5.7 correct? See the diagram below for your firing order.


ironfist109_96.png



  • Cylinder #6 is on the left side of the engine 3rd cylinder back.
  • Check the spark plug, wire, coil/distributor dealing with #6 to find out the problem.
  1. First replace the plug and see if this helps.
  2. Next swap wires from another cylinder and reset the code. If the error code follows the placement of the wire then the wire will be the problem.
  3. Check the distributor real well for cracks.
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  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

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Oct 04, 2011 | 1999 GMC Yukon

1 Answer

Spark plug wires are arcing on 1999 Yukon Denali, runs rough, wants to stall while idling


If the wires are arcing that means that they need to be changed they have worn out and they can no longer keep the high voltage inside the wire just replace them about $100 and all your problems will be solved

Dec 15, 2010 | 1999 GMC Yukon Denali

1 Answer

1999 Yukon Denali spark plug wiring diagram


driver side of engine is odds from radiator to fire wall is 1-3-5-7
Passenger side from radiator back is evens 2-4-6-8-
FIRING ORDER IS 1-8-4-3-6-5-7-2-

fae8bb5.jpg

Feb 15, 2010 | 1999 GMC Yukon Denali

1 Answer

1999 yukon 5.7 not starting, getting fuil, replaced fuel filter, new plugs, weak spark at plug.


Sounds like the ignition coil. You can take the coil in to places like Autozone and they can check it for you. Could also be bad plug wires, resistor in rotor, etc., but not likely.

Jan 16, 2010 | 1999 GMC Yukon

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