Transmission

Asked by Jul 01, 2016 at 09:30 PM about the 1984 Ford F-150

Question type: Maintenance & Repair

I have a 1984 Ford f-150 4.9 automatic, I
was on the freeway and all of a sudden it
started acting like it was down shifting to a
lower gear! I always use the overdrive when
I'm on the freeway, the engine started to
tacking at high rate, the transmission fluid is
ok, could use some expert advice on where
to troubleshoot first!

5 Answers

257,755

Check the rod/TV cable from the carb to the transmission to see if it hooked up, sometime they come loose or break.

Best Answer Mark helpful

I checked them out they looked ok , do you think it could be a sensor?

257,755

Hard to say until a mechanic looks at it. Being the truck is an 1984 and probably has over 150K miles, I'm thinking it's time for another transmission, because if something internal failed , your doing a rebuild or replacing with a used one.

I have rebuilt the engine and just about everything else on this thing except the transmission. I was hoping that I wouldn't have to but it sounds like that might be the problem. Do you know how much a new transmission would cost, versus a rebuild?

Would the transmission speed sensor cause these problems?

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 197,076 nationwide F-150 listings starting at $1,300.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,100
  • #2
    dandyoun
    Reputation
    4,580
  • #3
    tennisshoes
    Reputation
    3,140
View All

Related Models For Sale

Used Ford Mustang
607 Great Deals out of 36,332 listings starting at $899
Used Ford F-250
475 listings starting at $2,550

Used Cars For Sale

2018 Ford F-150 For Sale
63,665 listings starting at $21,482
2017 Ford F-150 For Sale
123 Great Deals out of 60,052 listings starting at $14,369
2016 Ford F-150 For Sale
136 Great Deals out of 8,039 listings starting at $16,995
2015 Ford F-150 For Sale
375 Great Deals out of 11,616 listings starting at $15,591
2014 Ford F-150 For Sale
514 Great Deals out of 14,515 listings starting at $9,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.