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Why will my V8 will only fire on 4 cylinders?

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  • Cars & Trucks Master
  • 436 Answers

There are many reasons. I'm not sure where to start, since I don't know what kind of vehicle, how old, how many miles.
You more than likely have bad coil/coil pack, spark plugs or cap and rotor, depending on the age and make of car.

Posted on Apr 25, 2015

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2 Answers

Jeep 4.0 firing order


1999 Jeep Cherokee 4WD 4.0 liter L6 VIN "S"

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Hope this helps (remember rated this).

Aug 09, 2010 | 1998 Jeep Cherokee

1 Answer

WHAT IS THE FIRING ORDER FOR A 1998 FORD EXPLORER


google "ford explorer firing order"

4.0L OHV Firing Order Firing order for the 4.0 liter OHV V6 is
  • 1-4-2-5-3-6
http://autorepair.about.com/od/enginefiringorders1/ 4.0L SOHV Firing Order Firing order for the 4.0 liter SOHV V6 is
  • 1-4-2-5-3-6
http://autorepair.about.com/od/enginefiringorders1/ 5.0L Firing Order Firing order for the 5.0 liter V8 is
  • 1-3-7-2-6-5-4-8
http://autorepair.about.com/od/enginefiringorders1/ How to Find the Cylinder Order V6 When standing in the front of the vehicle the cylinders are numbered 1-3 up the passenger's side and 4-6 up the driver's side. How to Find the Cylinder Order V8 When standing in the front of the vehicle the cylinders are numbered 1-4 up the passenger's side and 5-8 up the driver's side.

Jun 07, 2010 | 1998 Ford Explorer

1 Answer

Need firing order for 1998 Jeep Cherokee gand


For the 1998 Jeep Grand Cherokee Laredo:
I do not know if you have the 4.0L In-Line 6-Cylinder, the 5.2L V8, or the 5.9L V8; however I have included ALL below:

For the 4.0L In-Line 6-Cylinder:
Firing Order:
1-5-3-6-2-4
Cylinders:
(back)
...6
...5
...4
...3
...2
...1
(front)

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

For the 5.2L V8: AND 5.9L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
.......(back).......
|..8..|.........|..7..|
|..6..|.........|..5..|
|..4..|.........|..3..|
|..2..|.........|..1..|
.......(front)
Distributor:
.....(back)
.......3
..4.........6

8.............5
..1.........7
.......2
......(front)

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

May 28, 2010 | 1998 Jeep Grand Cherokee

2 Answers

Firing order for 1989 cadillac fleetwood


For the 1989 Cadillac Fleetwood:
I do not know if you have the Fleetwood Brougham with the 5.0L V8, or the Fleetwood FWD (Front Wheel Drive) with the 4.5L V8; however I have included both below.

For the Fleetwood Brougham 5.0L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
......(back)......
|..8............7..|
|..6............5..|
|..4............3..|
|..2............1..|
......(front)
Distributor:
......(back)
.....8.....1
4..............2
3..............7
.....6.....5
.....(front)

For the Fleetwood FWD (Front Wheel Drive) 4.5L V8
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
..........(back)..........
|...2....4....6....8...|
|.........................|
|...1....3....5....7...|
..........(front)
Distibutor:
......(back)
.........4
..3...........8
6.................1
..5...........2
.........7
......(front)

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

May 19, 2010 | 1989 Cadillac Fleetwood

1 Answer

Firebird firing order diagram


For the 1992 Pontiac Firebird:
I do not know if you have the 3.1LV6, 5.0L V8, or 5.7L V8; however I have included all of them below:

For the 3.1L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.....(back).....
|..5..|...|..6..|
|..3..|...|..4..|
|..1..|...|..2..|
....(front)
Distributor:
....(back)
......(+)-screw
...3......4
2............5
...1......6
......(+)-screw
....(front)

For the 5.0L V8 and the 5.7L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
......(back)........
|..8..|.......|..7..|
|..6..|.......|..5..|
|..4..|.......|..3..|
|..2..|.......|..1..|
.......(front)
Distributor:
....(back)
(+).6...5
3............7
4............2
.....8...1.(+)-screw

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

May 10, 2010 | 1992 Pontiac Firebird

2 Answers

Lost firing order


For the 1985 Jeep Grand Wagoneer:
I do not know if you have the 4.2L In-Line 6-Cylinder, or the 5.9L V8; however I have included both below:

For the 4.2L In-Line 6-Cylinder:
Firing Order:
1-5-3-6-2-4
Cylinders:
(back)
|..6..|
|..5..|
|..4..|
|..3..|
|..2..|
|..1..|
(front)
Distributor:
.....(back)
....5....3(+)-screw
1............6
(+)4....2
....(front)

For the 5.9L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
........(back)........
|...8...|.......|...7...|
|...6...|.......|...5...|
|...4...|.......|...3...|
|...2...|.......|...1...|
........(front)
Distibutor:
....(back)
(+).6....5
3.............7
4.............2
.....8....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!

Apr 20, 2010 | 1985 Jeep Grand Wagoneer

1 Answer

What is the firing order on the distributor cap on my 1997 Grand Cherokee


For the 1997 Jeep Grand Cherokee:
I do not know if you have the 4.0L In-Line 6-Cylinder or the 5.2L V8, however I have included both below:

For the 4.0L In-Line 6-Cylinder:
Firing Order:
1-5-3-6-2-4
Cylinders:
(back)
...6
...5
...4
...3
...2
...1
(front)

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

For the 5.2L V8: (Side Note 5.9L V8 = Same)
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
.......(back).......
|..8..|.........|..7..|
|..6..|.........|..5..|
|..4..|.........|..3..|
|..2..|.........|..1..|
.......(front)
Distributor:
.....(back)
.........3
....4........6..(+)-rounded tab screw
8................5
[ ].1.........7
.........2
......(front)

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



Apr 18, 2010 | 1997 Jeep Grand Cherokee

1 Answer

Spark plug firing order Diagram


For the 1984 Ford F150:
I do not know if you have the 4.9L In-Line (Straight) 6-Cylinder, the 5.0L V8, or the 5.8L V8; however I have included all below.

For the 4.9L In-Line 6-Cylinder:
Firing Order
1-5-3-6-2-4
Cylinders:
(back)
...6
...5
...4
...3
...2
...1
(front)
Distributor:
...........4
.....2
[].............1
..6.............[]-clip
.............5
.....3
Rotation: Clockwise

For the 5.0L V8:
Firing Order:
1-5-4-2-6-3-7-8
Cylinders:
........(back).......
|...4...|......|...8...|
|...3...|......|...7...|
|...2...|......|...6...|
|...1...|......|...5...|
.......(front)
Distributor:
..[]....5...1
4................8
2................7
....6....3..[]-clip
Rotation: Counter Clockwise

For the 5.8L V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
........(back)........
|...4...|.......|...8...|
|...3...|.......|...7...|
|...2...|.......|...6...|
|...1...|.......|...5...|
........(front)
Distributor:
..[]..3....1
7..............8
2..............4
....6....5..[]-clip
Rotation: Counter Clockwise.


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

Apr 13, 2010 | 1984 Ford F 150

1 Answer

Firing order on a 1998 Econoline


For the 1998 Ford Econoline Van:
I do not know if you have the Econoline E150, E250, E350 Model; or the 4.2L V6, 4.6L V8, 5.4L V8, or the 6.8L V10 Engine; however I have included all below.

For the 4.2L V6:
Firing Order:
1-4-2-5-3-6
Cylinders:
......(back)......
|..3..|.......|..6..|
|..2..|.......|..5..|
|..1..|.......|..4..|
......(front)

For the 4.6L V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
Click on the following direct free Link:
http://autorepair.about.com/library/firing_orders/bl-fo-4591.htm

For the 5.4L V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
.........(back).........
|...4...|........|...8...|
|...3...|........|...7...|
|...2...|........|...6...|
|...1...|........|...5...|
.........(front)

For the 6.8L V10:
Firing Order:
1-6-5-10-2-7-3-8-4-9
Cylinders:
............(back)...........
|....5....|.........|...10....|
|....4....|.........|....9.....|
|....3....|.........|....8.....|
|....2....|.........|....7.....|
|....1....|.........|....6.....|
...........(front)

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



Apr 06, 2010 | 1998 Ford Econoline

1 Answer

What is the firing order and spark plug connection?


4.0L OHV Firing Order Firing order for the 4.0 liter OHV V6 is
  • 1-4-2-5-3-6
4.0L SOHV Firing Order Firing order for the 4.0 liter SOHV V6 is
  • 1-4-2-5-3-6
5.0L Firing Order Firing order for the 5.0 liter V8 is
  • 1-3-7-2-6-5-4-8
How to Find the Cylinder Order V6 When standing in the front of the vehicle the cylinders are numbered 1-3 up the passenger's side and 4-6 up the driver's side. How to Find the Cylinder Order V8 When standing in the front of the vehicle the cylinders are numbered 1-4 up the passenger's side and 5-8 up the driver's side.

Jul 30, 2009 | 1999 Ford Explorer

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