Question about 1986 Pontiac Fiero

1 Answer

Firing order fiero v6

Why is my firing order 145632 instead of 123456?

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  • 4 more comments 
  • arno Lacres
    arno Lacres Nov 20, 2013

    i try the order 1 2 3 4 5 6

    but it th sound that was comming out of the enine was so bad and therewas comming smoke out of the airfilter so i guess its a bad order.

    plz help me more

  • arno Lacres
    arno Lacres Nov 20, 2013

    i try the order 1 2 3 4 5 6

    but it th sound that was comming out of the enine was so bad and therewas comming smoke out of the airfilter so i guess its a bad order.

    plz help me more

  • mikadot
    mikadot Nov 20, 2013

    the order is critical as to when each cylinder has the piston up at top dead center and as to which ones have the intake valves open and which have exhaust valves open etc.

  • mikadot
    mikadot Nov 20, 2013

    2.8 liter?

  • mikadot
    mikadot Nov 20, 2013

    it may very well be 123456 but where you put #1 on the distributer can change everything

  • arno Lacres
    arno Lacres Nov 20, 2013

    yes its a 2.8 liter. but is it normal thatt it is an other firing order ??

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  • Contributor
  • 23 Answers

Maybe it's not a Fiero engine?

Posted on Feb 26, 2016

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Posted on Jan 02, 2017

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SOURCE: i need the firing order for an '86 fiero 2.8L V-6

The firing order for this car from right to left is:-

4 Cylinder is 1-3-4-2.

and

V6 or 6 Cylinder is 1-3-6-2-5-4.

Good luck and thanks for using Fixya.

Posted on Apr 11, 2010

BCAS1298
  • 3092 Answers

SOURCE: looking for the fire order

2.5L fire order 1-3-4-2

2.8L fire order 1-2-3-4-5-6

Posted on Aug 10, 2010

  • 14036 Answers

SOURCE: WHAT IS FIRING ORDER V6

FIRING ORDER IS 1 2 3 4 5 6

Posted on Sep 07, 2010

  • 2002 Answers

SOURCE: Firing Order for 85 Fiero GT 2.8L

The firing order is 1-2-3-4-5-6. The odd numbers are front to back on the left of the fan and the even ones on the right side of the fan. The distributor turns clockwise and #1 is at the 5 o'clock position. Hope this helps.

Posted on Oct 10, 2010

taran_2005
  • 10515 Answers

SOURCE: 1987 pontiac fiero spark plug firing order fron

Hi,

The firing order is - 1 2 4 5 6

taran_2005_2.gif

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Nov 26, 2010

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1 Answer

V6 fiero runs rough no power, vibrates and a has different exhaust sound


Have you checked fuel pressure?
Vac leaks ?
Restriction in the air intake ? Faulty EGR valve ?

Jul 31, 2012 | 1986 Pontiac Fiero

1 Answer

I replaced the timing gears and chain in my 85 fiero gt and it wont fire up ive checked the compression and tried 123456 and that dont work


Thats the correct firing order 123456,You know on those engine the push rod tends to fly out and the rocker arm nuts tend to loosen out.

Mar 20, 2012 | Cars & Trucks

1 Answer

I need a firing order diagram for a 1987 pontiac fiero


1987 Pontiac Fiero
2.5 liter L492717859.gif 1987 Pontiac Fiero
2.8 liter V-641894283.gifPlease rate this help.....Notice there is v6 and 4 cyl makesure you get the write one

Nov 30, 2010 | Pontiac Fiero Cars & Trucks

1 Answer

1987 pontiac fiero spark plug firing order fron distributor to spark plugs


Hi,

The firing order is - 1 2 4 5 6

taran_2005_2.gif

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Nov 26, 2010 | 1986 Pontiac Fiero

1 Answer

Firing Order for 85 Fiero GT 2.8L


The firing order is 1-2-3-4-5-6. The odd numbers are front to back on the left of the fan and the even ones on the right side of the fan. The distributor turns clockwise and #1 is at the 5 o'clock position. Hope this helps.

Oct 10, 2010 | 1985 Pontiac Fiero

2 Answers

Looking for the fire order on fiero 85 g


The exact firing order for the vehicle depends upon the engine model.But you have not mentioned that but still i will mention the firing order for yor vehicle and year which you have provided.Check the engine model too that is either 2.5 L4 or v6.

Firing order on the 2.5 L L4 engine is 1-3-4-2.
---------------

firing order for a Pontiac Fiero 1985 V6 28the firing order of a GM 60degree V6 is 1,2,3,4,5,6. 
1,3,5 are next to the trunk. 
2,4,6 are next to the back glass. 

the distributor rotates clockwise



Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Aug 10, 2010 | Pontiac Fiero Cars & Trucks

1 Answer

Do you know plug wire line up for a 1995 pontiac fiero 2.3


The Pontiac Fiero was made from 1984 to 1988
In the 84 thru 88 Fiero's they had the 2.5L In-Line 4-Cylinder or the 2.8L V6.
I have included both below

For the 2.5L In-Line 4-Cylinder:
Firing Order:
1 - 3 - 4 - 2
Cylinders:
.........(back)............
|...1....2....3....4...|
.........(front)
Distributor Connections:
..............2
...................(+)
....4
....................1
(+)
..........3

For the 2.8L V6:
Firing Order:
1 - 2 - 3 - 4 - 5 - 6
Cylinders
.......(back).........
|...1.....3.....5...|
|......................|
|...2.....4.....6...|
........(front)
Distributor:
............2
......1.........3
(+)...............(+)
......6.........4
............5

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

Jul 09, 2010 | 1985 Pontiac Fiero

2 Answers

I need the firing order for an '86 fiero 2.8L V-6


The firing order for this car from right to left is:-

4 Cylinder is 1-3-4-2.

and

V6 or 6 Cylinder is 1-3-6-2-5-4.

Good luck and thanks for using Fixya.

Apr 11, 2010 | 1986 Pontiac Fiero

1 Answer

Runs rich and miss fires


Make sure the spark plug wires are on right (propper firing order), and check the TPS sensor. Are there any exhaust leaks or vacuum leaks? Did you use the original intake manifolds and Holley throttle body? If not you need to replace the PROM chip with the one from the donor car.

Sep 20, 2009 | 1986 Pontiac Fiero

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