Question about 1990 GMC Sierra

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Wirering from distributor cap to plugs on 1990 gmc s15 4.3 v6

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Here is the firing order diagram for that vehicle and engine.


wirering from distributor cap to plugs on 1990 gmc - 5471a36.jpg

Posted on Jul 11, 2010

  • 1 more comment 
  • Zaraki Aug 04, 2010

    What else did you want someone to install them for you as well?

  • Zaraki Aug 04, 2010

    I can certainly see why you are having difficulties, after all color coding and numbers can be difficult for some to understand, and you might want to seriously consider having someone else install your spark plug wires correctly. Of course I am only saying this because even my wife could install those spark plug wires correctly in five miutes or less with that diagram, and to give such a low rating for the firing order diagram that you asked for because you can not understand it shows just how un-appreciative you are, and it is not like I or anyone else here have to go through the trouble to upload a diagram just for you. I will definitely be sure to avoid answering any future questions that you would post.

  • Robert Small
    Robert Small Dec 01, 2013

    your diagram is wrong fella. pull your head out and check out the world around you.

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I have a 1990 toyota with the v6 it turns over but no spark and no gas


-Does it have a distributor...?
-If so. Remove the distributor cap cover (Only the cap Cover) and ask a helper to help you crank the car for 3-4 seconds.
Q: Does the distributor turn (Spin) ?
A: Yes. Then check head relay and fuses.
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Spark plug wiring firing order to distributor cap


For the 1988 GMC K2500:
I do not know if you have the 4.3L V6 or the 5.0L, 5.7L or 7.4L V8's however I have included all below:


For the 4.6L V6:
Firing Order:
1-6-5-4-3-2
Cylinders:
......(back)........
'...6...........5...'
'...4...........3...'
'...2...........1...'
.......(front)
Distributor:
......(back)
(+) - screw
..........4
....................3
5
.....................2
....6
.............1
.....................(+) - screw


For ALL V*'s (5.0L, 5.7L and 7.4L)
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
.......(back)........
'..8..............7..'
'..6..............5..'
'..4..............3..'
'..2..............1..'
........(front)
Distributor Connections:
.....(back)
.....6.....5
3...............7
4...............2
.....8.....1
.....(front)
Rotation:
Clockwise

Sep 24, 2010 | 1988 GMC K2500

1 Answer

What is the position of the rotor at top dead center on number one on a 4.3 gmc 1990


Firing end of rotor under number one spark plug wire on distributor cap.

Aug 21, 2010 | 1990 GMC S-15 Jimmy

1 Answer

My 1990 GMC sierra pu dies randomly while driving or even sitting. Seems to be more prevalant when raining but now does it all the time.


COULD BE BAD IGNITION COIL OR MODULE.IT COULD BE BAD FUEL INJECTOR OR INJECTORS.CLOGGED FUEL FILTER. A BAD DISTRIBUTOR CAP ROTOR + BAD PLUGS AND WIRES WILL CAUSE PROBLEMS AND BAD FUEL WITH WATER IN IT.

Mar 01, 2010 | 1990 GMC Sierra

1 Answer

In what order do yu arrange the plug wires on the distributor cap or a 1990 gmc 350


1-8-4-3-6-5-7-2 Distributor turns clockwise Number one should be in the 5 oclock position. You should be able to draw an imaginary straight line between the coil tower and number one tower on the cap and the number one spark plug.

May 15, 2009 | 1990 GMC Sierra

1 Answer

1990 GMC jimmy 4.3 liter v6 is Being a ****


check to see if you have your plug wires at the right location on distributor cap. If you don't have a digram they are as follows- right side 1, 3, 5 front to rear. Left side is 2,4,6 front to rear. #1 should be on the location at front of cap closest to intake manifold. firing order is 1,2,3,4,5,6. Hope this helps. KS

Mar 20, 2009 | 1990 GMC S-15 Jimmy

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