Question about 1988 GMC S-15

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Took cap off what wire goes where on dis cap

Dis. cap firing order for 1988 s15 gmc 2.5

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  • reduncan03 May 31, 2009

    where do you start on the cap

  • Anonymous Mar 22, 2014

    starter not turning over

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I think the firing order is 1-3-4-2. The intake might or might not be marked which cylinder is which. Hope this helps

Posted on Aug 28, 2009

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1 Answer

Firing order on a 2000 gmc Sonoma v/6


Shelia, 2000 gmc Sonoma v/6 Firing order, firing order for the 4.3L engine is 1-6-5-4-3-2.
Cylinder order drivers side 1-3-5 and passenger side 2-4-6,
Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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Aug 20, 2016 | GMC Sonoma Cars & Trucks

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How do I set the ignition timing on my 1988 GMC S15 2.5L


Best bet, go to your local parts store and pick up a haynes manual, but i can offer my advice if you dont want to do that, first make sure your ignition parts are all good, coil cap rotor, then make sure your firing order is correct, (again haynes manual would be helpful,) then if that fails loosen the distribitor enough you can turn it but not loose enough it would turn on its own, bring your number one cyilinder up to TDC (TOP DEAD CENTER) <(the top of the compression stroke, you do this by getting a buddy to help you, remove the coil wire take the number one spark plug out and USE ONLY YOUR FINGER, cover the hole and have your buddy bump the key untill the compression blows your finger out of the hole, then verify the rotor under the distributor cap is pointed at the number one plug wire on the cap. Again the haynes manual would be a great investment as it explains all this in detail and even has pictures too. good luck and let me know if that helped

Mar 23, 2013 | Cars & Trucks

1 Answer

Fireing order for GMC S15


2.5L ENGINE FIRING ORDER 1 3 4 2 / THE 2.8L ENGINE FIRING ORDER IS 1 2 3 4 5 6 / THE 4.3L ENGINE FIRING ORDER IS 1 6 5 4 3 2

Mar 29, 2011 | GMC S-15 Cars & Trucks

2 Answers

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 firing order, diagram, and distributer rotation on 1988 GMC truck with a 4.3 litre AT 4x4


The firing order is almost always cast in the intake manifold in front of the throttle body.But here it is 1-6-5-4-3-2....Rotation is clockwise. The cosest front terminal on the cap is #1.

Jan 04, 2010 | 1988 GMC S-15

2 Answers

Firing order diagram for 1986 GMC S15 2.8L


For this models:
1986 GMC S15/T15 4WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 4WD Jimmy 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD Jimmy 2.8 liter V-6 VIN "R"

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Hope helped woth this. Remember rated this help. Good luck.

Nov 24, 2009 | 1986 GMC S-15

1 Answer

Firing order for a 1986 gmc s15


FIRING ORDERS

To avoid confusion, ALWAYS replace spark plug wires one at a time.

The most important thing to remember about the removal and installation of a distributor, cap or spark plug cable is that all wires MUST be labelled before they are disconnected. Keep in mind that these figures depict a firing order where the distributor cap terminals are relative to EACH OTHER only and they do not necessarily depict the tower positions in relation to the rest of the engine. This is true because any distributor which has been removed and reinstalled may have been installed with the No. 1 spark plug tower at any position (360 degrees) in relation to the rest of the motor, as long as the rotor aligned to the No. 1 tower when the No. 1 cylinder was at TDC of the compression stroke (valves closed, ready for the plug to fire). As long as the remaining wires were connected in the correct firing order sequence (depending on direction of distributor rotation) the engine will run. DO NOT EVER remove more than one wire from the distributor cap at a time unless you tag ALL wires and towers to assure proper installation.

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Fig. 1: 1.9L engine . Firing order: 1-3-4-2 . Distributor rotation: counterclockwise

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Fig. 2: 2.0L engine . Firing order: 1-3-4-2 . Distributor rotation: clockwise

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Fig. 3: 2.5L engine . Firing order: 1-3-4-2 . Distributor rotation: clockwise

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Fig. 4: 2.8L engine . Firing order: 1-2-3-4-5-6 . Distributor rotation: clockwise

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Fig. 5: 4.3L engine. Firing order: 1-6-5-4-3-2 . Distributor rotation: clockwise

I hope help you with this (remember rated this help) Good luck.

Oct 05, 2009 | 1986 GMC C1500

1 Answer

What is the firing order for an 89 gmc s15 2.8 liter v6?


Hello cman0906: My name is Roger and I will answer your question. The fire order is 1 5 6 4 3 2. See picture. Please rate the answer you recieved. This way we know your answer was correct. Should you need further halp please just ask. Thank You for using Fix Ya. Roger6bd011d.jpg

Jul 31, 2009 | 1988 GMC S-15

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