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

Tom Demyan

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

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

Tom Demyan

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

Add photo

Related Questions

  • Transmission 1 answer

    Will a 04 f150 transmission work in a 07 f150

    2007 Ford F-150 FX2 SuperCab


    Maintenance & Repair

  • Transmission 2 answers

    I have a 2010 f150 5.4 liter. I have approximately 162000 miles. There are no service lights on. Over the last year it has begun to have a sporadic issue when it down shifts into first gear. It ...

    2010 Ford F-150 Lariat SuperCrew 4WD


    Maintenance & Repair

  • looking for a transmission for 2007 ford harley davidson truck, in or around orville, ca area? 1 answer


    2007 Ford F-150


    Maintenance & Repair

  • Transmission 2 answers

    I have a bad transmission in my truck. Can I put a 2004 transmission in my truck for a replacement. I know the 2004 transmission has 2 sensors on it & my old one just has 1. The mechanic said, my o...

    2001 Ford F-150 XLT Crew Cab 4WD SB


    Maintenance & Repair

  • transmission 1 answer

    1998 ford f150 and a Lincoln 1992 mow r the transmission compatible

    1998 Ford F-150 STD LB




Looking for a Used F-150 in your area?

CarGurus has 216,652 nationwide F-150 listings starting at $1,500.


Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
Reputation 6,020
#2 dandyoun
Reputation 3,900
#3 tennisshoes
Reputation 2,300
View All

Related Models For Sale

Used Ford F-250"
609 listings starting at $3,995
Used Ford Mustang"
739 Great Deals out of 41,066 listings starting at $900
Used Ford Ranger"
266 Great Deals out of 7,708 listings starting at $988

Used Cars For Sale

2017 Ford F-150 For Sale
8,164 listings starting at $17,015
2016 Ford F-150 For Sale
149 Great Deals out of 136,859 listings starting at $16,985
2015 Ford F-150 For Sale
235 Great Deals out of 8,875 listings starting at $17,958
2014 Ford F-150 For Sale
502 Great Deals out of 10,890 listings starting at $10,450
2013 Ford F-150 For Sale
721 Great Deals out of 14,746 listings starting at $7,727