Question about 1981 Ford F 150

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Where is my idle adjust on my 1981 F100 pickup?

Posted by Anonymous on

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Posted on Jan 02, 2017

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SOURCE: ford f100

0.81 - 0.91 millimetre

Posted on Jun 08, 2008

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emissionwiz
  • 76164 Answers

SOURCE: I am trying to find a 3 speed shfiter cloumn for a 1981 F100

we are a tech help site no links to parts, sorry, have you tried ebay, there are allot of vintage parts there like this column, have bought lots of parts for cars back to the 1940's on ebay.

Posted on Sep 14, 2009

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1 Answer

My 1973 ford f100 will idle rough at lower rpm's


This can be a vacuujm leak or a cylinder missing.

Aug 10, 2011 | 1981 Ford F 100

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Cleaned out carburator on a F100 straight 6. Now


I would suspect there is dirt in the idle system, did you blow the jets and passages out with compressed air.

Jun 04, 2010 | 1981 Ford F 100

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F100 pickup stalls out when coming to a stop. It restarts and drives fine. I've rebuilt the carb., changed the fuel filters and line, and replaced the gas tank and sending unit. What am I missing or do i...


It might be the float but if you don't have any trouble getting the truck up to speed then it's likely fine. The trouble is more likely to be in the idle circuit. The curb idle should be 500 to 750 RPM depending on if it's standard or automatic ( higher for auto). If that's okay then you may have to play with the idle screws. Turn them both the same amount, 1/4 turn at a time. Turn them once and then rev the engine 2 or 3 times and let it idle down suddenly. You will have to re-adjust the curb idle to keep it at the right spot as well.
If the truck is an automatic, once you have it set up so it runs right then put it in gear and try again although that will probably only need the curb idle adjusted if it stalls. hope this helps.

May 09, 2010 | Ford F-100 Cars & Trucks

1 Answer

Ned to now wat the firing order for dist cop shood be for a 1987 ford f100 pick-up truck 300sixcylender stick shift model#333


The F100 ended in 1983, so there is some confusion on your 1987 Ford F100. The F150 started in 1983 and was available in 1987, but not the F100. You have this listed under the 1981 Ford F100 category.
The 300 CID = 4.9L In-Line (Straight) 6-Cylinder.
In order to best answer your question I have included both the 1981 F100 4.9L and 1987 F150 4.9L below. The only difference is with the Distributor Cap Configuration and Connections.

For the 1981 F100 300cid=4.9L:
Firing order:
1-5-3-6-2-4
Cylinders:
(back)
...6
...5
...4
...3
...2
...1
(front)
Distributor:
...(back)
.........4..[.]-clip
2
...................1
6
................5
[.]....3

For the 1987 F150 300cid=4.9L:
Firing Order:
1-5-3-6-2-4
Cylinders:
(back)
..6
..5
..4
..3
..2
..1
(front)
Distributor:
.......(back)
.................4
.....2
[.]
.......................1
..6
.........................[.]-clip
....................5
.......3
.........(front)

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

May 07, 2010 | 1981 Ford F 100

2 Answers

Transmission for a 1978 Ford F100


The transmission should have the label "FMX" upon the center lower drivers side of the body. This was Ford's largest and heaviest tranny they ever made for commercial(privately owned) trucks.They only produced this model for 8 years.

Oct 05, 2009 | 1981 Ford F 100

1 Answer

I am trying to find a 3 speed shfiter cloumn for a 1981 F100


we are a tech help site no links to parts, sorry, have you tried ebay, there are allot of vintage parts there like this column, have bought lots of parts for cars back to the 1940's on ebay.

Sep 14, 2009 | 1981 Ford F 100

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