Question about 1991 Isuzu Pickup

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1991 Isuzu 4X4 Pickup 3.1 V6 won't warm start plus shudder in low

2 problems really... 1. won't start when warm or very humid. sometimes stalls when idling and same thing - won't restart. 2. when releasing clutch, as it gains speed, in 1st and 2nd the truck shudders, but don't think it is the clutch. with clutch completely disengaged in 1st and then applying gas it shudders, unless i go really easy. it also shudders when decelerating in 1st with clutch disengaged. will NOT climb steep hill slowly without major shuddering, except in low 4x4. 267,000 (yes) miles on engine, replaced plugs, wires, dist cap, rotor, coil, and used injector cleaner which all helped, but only temporarily. runs great when it runs, except misfiring every once in a while while "lugging" (unintentional)

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Your flywheel sound like it has hot spots on it, making the clutch chatter. You might need to pull the flywheel off and get it re-surface. This is like turning your rotor, or brake drum. If you pull the flywheel, you will see discolor spots on your flywheel. This is called hot spots, and will make the clutch slip.

On the other problem, have you changed to fuel filter and fuel pump. It almost sound like your running out of fuel????

Posted on Jan 29, 2009

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Posted on Jan 02, 2017

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Hi I have a 1991 Isuzu rodeo 3.1L V6 and can't figure out or find the right fireing order can I help please


For the 1991 Isuzu Rodeo with the 3.1L V6:

Firing Order:
1-2-3-4-5-6
Cylinders:
....(back).....'.5...........6.'
'.3...........4.'
'.1...........2.'
....(front)
Distributor:
.....(back)
.................(+)-screw
..........4
..3
...................5
2
.................6
.........1
(+)-screw
.....(front)
Rotation: Clockwise

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Stalls and shudders warm and cold


Mass air flow sensor. Can be cleaned before you buy a new one

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Spark plug firing order


For the 1991 Isuzu Rodeo
I do not know if you have the 2.6L SOHC In-Line 4-Cylinder or the 3.1L V6; however I have included both below.


For the 2.6L:
Firing Order
:

1-3-4-2
Cylinders:
(back)
...4
...3
...2
...1
(front)
Ignition Coils:
(back)
[///]1....2
[///]3....4
(front)

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

Jul 29, 2010 | 1991 Isuzu Rodeo

2 Answers

What is the complete firing order digram for a 91 isuzu rodeo with a v6?


Hello jaymcintosh: My name is Roger and I will help you.The fire order is 1-2-3-4-5-6. I also attached a picture to help you. Should you need further help please just ask. Please rate the answer you received. Thank You using Fix Ya. Roger08c41b9.jpg

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1991 v6 3.0l 4runner starts when cold and when warms up stalls out


my experiences with toyota 4runners is that the ignition will do this when it is going bad. another problem that could cause this is a faulty injector that when it heats up it will short out.Hope this helps

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