I picked up a '95 F-150 last weekend (161K, 351W) as a spare vehicle. Seems a bit firm on the downshifts when decelerating but fine on the upshifts. Almost a "bang" like a broken mount. I looked underneath and nothing is obviously broken. Was going to get a floor jack underneath and check but before I did, I thought I would as those more familiar with Ford trucks for an opinion or what else to look into. This is basically a spare to run to the airport (I travel for work) if it snows, get mulch in the spring, maybe haul stuff to the dump, etc so I'm not looking to make it 100% but I'd still like to know what might be going on.

Thanks

 

That trans is completely computer controlled so step 1 is pull the codes. If you get an all clear code 111 then go back to looking for broken engine or trans mounts or worn out driveshaft U -joints, you'll need to remove the D shaft to properly inspect the joints. If however you get any codes from the computer make repairs to clear those codes, a single PCM controls the whole powertrain so all sensors affect transmission operation.

 

Cool. Thanks. How do I pull codes from the tranny? Is this the first year of OBD II? I've got a code reader.

 

No your truck is OBD1, see here for code retrieval procedure..Fuel Injection Technical Library » How To Run a Self-Test

 

Struggling a bit to read them correctly. First, how can I tell which are two and 3 digit codes? the spacing beween the rapid blinks is hard to gauge. I think there are a lot of codes stored, (or I can't seem to pick up when the repeat is starting), even though it seems to be running well. I will try again. I see that it's 1/2 sec from initial pulse, 2 sec then 4 sec then the next code. Is that correct?

 

Looks like 5th time is a charm. I've got -
KOEO -
114 - ACT out of self test range 0.3 to 3.7 volts.
116 - ECT out of self test range 0.3 to 3.7 volts.
636 - TOT sensor voltage out of self test range.

From the CM
334 - DPFE or EVP circuit above the closed limit of 0.67 volts.
452 - Computer detected an error in the VSS or PSOM signal during the last 80 warm-up cycles.

Knowing that the other night, the linkage slop (presumably) caused the OD light to flash and it to get whacked out. Should I clear the codes and drive a bit to re-read? What do you make of the above combo of codes?

 

So I googled all of these and wound up in threads in other parts of this board. Looks like the only one transmission-related is the TOT (Trans Temp) which could cause a hard downshift, right? maybe not. The others I am not going to worry about right now because the truck is running well.