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2000 Dodge Dakota Transmission shifting problems
i have a 2000 dodge dakota 4.7L 4wd
here is my problem
-when shifting into drive there is a delay then hard shift, you can feel it shift
-while driving when it goes to shift from 2nd to 3rd there is also a delay then hard shift
-when going over 45 miles per hour there is a jumpy feeling like lightly taping on the breaks, almost like its jumping in and out of a shift.
a coworker said he had a 2001 dodge ram with these same symptoms and said it was a sensor but cant remember which one
any solutions are helpful
here is my problem
-when shifting into drive there is a delay then hard shift, you can feel it shift
-while driving when it goes to shift from 2nd to 3rd there is also a delay then hard shift
-when going over 45 miles per hour there is a jumpy feeling like lightly taping on the breaks, almost like its jumping in and out of a shift.
a coworker said he had a 2001 dodge ram with these same symptoms and said it was a sensor but cant remember which one
any solutions are helpful
1
Comments
Yes, there are sensors in the transmission that help the PCM accomplish
smooth shifting through the gears at the correct rpm.
1. (TSS) Transmission speed sensor, located around the rear of the transmission.
2. Variable pressure solenoid (located inside the transmission) in the
shift valve control body.
3. Transmission fluid pressure sensor (located inside the transmission
valve body)
4. Transmission temperature sensor
5. Transmission relay (located in the PDC) which controls +12v power
the a) variable (shift) force solenoid
b) 3-4 shift solenoid (to get into O/D)
c) TCC (torque convertor clutch) solenoid control
the PCM provides gnd (control) to the other side of these solenoids.
There could also be a mechanical issue in the transmission:
front band (which controls the front planetary gear set, could need adjustment;
or the 2-3 shift valve sticking inside the valve control body of the transmission
Or
the following electrical issues inside the transmission:
a) IF Torque convertor locks up in 2nd or 3rd gear;
Lockup solenoid.....( relay or wiring issue)
b) IF harsh 1-2, 2-3, 3-4 shifts, it could also be:
Lockup solenoid malfunction (remove valve body and replace solenoid)
Shortly after purchase I noticed I a clunking sound on gear change going reverse to forward. This happens pretty much every time I back up.
Two times, backing out of driveway with wheels cranked, the truck stalled on gear change.
A couple of times on start-up, the truck would not move at all when put in reverse.
Another sporadic but ongoing issue: I pull truck out of garage and head up driveway, unable to gain full power and there is a sound of air being pushed. Passerbys turn to look so it is noticeable. After a minute or so of “whooshing” up the road the truck returns to normal. The most recent incident,I was highway driving, going downhill, somewhere between 50-70 km, when the truck made a clunking sound and lurched, as though changing gears on its own or slipping.
Minutes later, on the flat, same speed, it did the same thing. I drove it to pro mechanic, staying under 40 km and under 2000 rpm, with no repeat of incident. Shop owner drove it and it did it again, but when he sent tech out to test drive and its stopped doing it. It is not showing any codes. Best description my girl brain can muster, can anyone offer advice?