Question about 1989 GMC C1500

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Need to see a diagram of the firing order for a 1989 gmc truck, need to see on the distributor what is #1 - #8

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#1 on the cap will be pointing at the drivers side front of motor , then clockwise 18436572 .

http://www.fullsizechevy.com/showthread.php?320317-Quickie-Firing-Order-Question

Posted on Jul 30, 2010

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Firing order diagram and timing degrees 1989 gmc 1500 series 350 engine


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Jan 06, 2016 | GMC Cars & Trucks

1 Answer

Diagram spark plug wiring


my guess, is you removed them and didnt mark them?
the firing order?
what engine, there are 5.

to do this , one need to know 5 things.
2.5L, 2.8L, 4.0L and 5.2/5.9L engine displacements.
the distributor rotation direction CCW, or CW
and last the firing order, sometimes marked clearly on the intake manifold.
you must now where #1 cylinder is (always most front)
1989-98 2.5L Engine firing order: 1-3-4-2 Distributor rotation: Clockwise
2.8L Engine firing order: 1-2-3-4-5-6 Distributor rotation: Clockwise
4.0L Engine firing order: 1-5-3-6-2-4 Distributor rotation: Clockwise
5.2L and 5.9L Engine firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise
on a v6/v8 one cylinder is more forward. this is #1, look carefully.

Nov 26, 2013 | 1997 Jeep Grand Cherokee

2 Answers

Need the spark plug diagram for a 77 gmc 454 engine


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V8 engines with points-type ignition system Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise



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V8 engines with electronic distributor ignition system Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise


Hope heslp.

Jan 30, 2011 | Cars & Trucks

1 Answer

Need firing order for 1989 4.3 L V6 for engine and distributor cap order. A diagram would be apreciated.


I just checked Auto Zone, they have what you are looking for, under repair info.

Oct 08, 2010 | GMC Jimmy Cars & Trucks

1 Answer

I need to know the timing marks for installing the timing chain and in 1992 GMC sonoma st in the firing order on the distributor and the engine block.


I highly recommend you get the Haynes repair manual on your vehicle. The Haynes Manual has photo references that show the alignment as well as a diagram of the firing order on the Distributor. Typically the #1 is marked on the the Distributor cap and they are sequential clockwise after that. The Firing order is actually controlled by the order you connect the wires to the Distributor.

Sep 30, 2010 | 1992 GMC Sonoma

1 Answer

I need a diagram for spark plugs to distibuter cap for a 89 gmc suberban


For the 1989 GMC Suburban I do not know if you have the 5.7L or 7.4L, however both have the same firing order, cylinder layout and distributor layout:

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

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

Aug 27, 2010 | 1989 GMC Suburban

2 Answers

What is the firing order for a grand cherokee laredo. I change the distributor for sgrand cherokee laredo jeep. I lined up tdc, had the rotor turned to number 1, but it is still missing.


You didn't post your engine size so please choose the apprpriate diagram:



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1989-98 2.5L Engine firing order: 1-3-4-2 Distributor rotation: Clockwise



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2.8L Engine firing order: 1-2-3-4-5-6 Distributor rotation: Clockwise



427e129.gif

4.0L Engine firing order: 1-5-3-6-2-4 Distributor rotation: Clockwise



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5.2L and 5.9L Engine firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise

May 12, 2010 | 1996 Jeep Grand Cherokee

2 Answers

Need firing order for 1995 gmc jimmy


For the 4.3L (6Cyl)
Firing Order:
1-6-5-4-3-2

Cylinders:
(back of engine)
| 6 |---------| 5 |
| 4 |---------| 3 |
| 2 |---------| 1 |
(front of engine)

Distributor:
...(back)
(+)..4...3
.5...........2
....6...1..(+)-screw
...(front)

Let me know if this helped or if you have additional information or questions. Feel Free to contact me at FixYa.com!

Mar 04, 2010 | 1995 GMC Jimmy

2 Answers

Firing Order Diagram


the firing order is
1-6-5-4-3-2

Jul 23, 2008 | 1991 GMC C1500

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