Hi I have had a check engine light come on in my truck several times. First it was code P0755 shift solenoid b malfunction. I had it cleared several times before finally replacing the shift solenoids in my trans for $115 for the part. It was fine for a couple weeks untill the light came on again. Now I have code P1714, I think, which is something real simmilar to before.
The truck runs and drives fine no transmission problems. I just towed a 4500lb trailer 5.5 hours. Has anyone heard of this problem. The autozone I took it to wouldn't clear the code and haven't gotten to a different one.
97 250LD 5.4L w. E40d trans

 

A P1714 is for a SS1 (shfit solenoid 1) mechanical failure. The pinpoint test says to clear the code, which you can do by disconnecting the battery for a few minutes, and then doing a Drive Cycle test and then checking for codes again. If the code comes back then it says to replace the solenoid pack.

 

Thanks for the info. What is a Drive Cycle test? Just taking it for a test drive through all the gears? What if the code doesn't come back for a while like before?
Appreciate the help.

 

NOTE: The Transmission Drive Cycle Test must be followed exactly. Abnormal operation has to occur four times consecutively for codes P0781, P0782, and P0783 to be set, and five times consecutively for continuous codes P1728, P1744, P0741, P0743.

NOTE: When performing the Transmission Drive Cycle Test, refer to Shift Solenoid Operation Chart in the Specifications portion of this section for proper solenoid operation.

Record and then erase Quick Test codes.

Warm engine to normal operating temperature.

Make sure transmission fluid level is correct.

With transmission in OVERDRIVE, moderately accelerate from stop to 80 km/h (50 mph). This allows the transmission to shift into fourth gear. Hold speed and throttle open steady for a minimum of 15 seconds.

With transmission in OVERDRIVE, press transmission control switch (TCIL should illuminate) and moderately accelerate from stop to 64 km/h (40 mph). This allows transmission to shift into third gear. Hold speed and throttle opening steady for a minimum of 15 seconds (30 seconds above 4000 ft).

Press TCS (TCIL should turn off) and accelerate from 64 km/h (40 mph) to 80 km/h (50 mph). This allows transmission to shift into fourth gear. Hold speed and throttle position steady for a minimum of 15 seconds.

With transmission in fourth gear and maintaining steady speed and throttle opening, apply and release brake pedal (2455) lightly (to operate stoplamps). Then hold speed and throttle steady for an additional 5 seconds (minimum).

Brake to a stop and remain stopped for a minimum of 20 seconds.

Repeat Steps 4 through 8 at least five times.

Perform Quick Test and record continuous codes.