Piston Slap: Crystal Ballin' The Mighty Dak's Tranny

by Sajeev Mehta

Updated: May 16th, 2014 Published: May 29th, 2013

piston slap crystal ballin the mighty dak s tranny

TTAC Commentator PartsUnknown writes:

Hi Sajeev,

I have a transmission issue, but to mix it up a little, it’s not attached to a Honda. This is my dad’s 1999 Dodge Dakota with the 3.9 liter V6 boat anchor. When shifted into drive, it will move forward but will not shift itself out of first gear. Moving the column shifter does nothing. Reverse gear works fine. The level and condition of the trans fluid is good. The truck isn’t worth much as it’s a 2WD regular cab (worthy of a scarlet A in New England), but here’s the thing: it only has 74,000 miles and is in otherwise good shape.

My dad needs to decide whether to fix it or sell it as-is. Is he looking at a new tranny, or something simple (and relatively cheap) like a solenoid or a control module?

As always, thanks for the advice.

Sajeev answers:

The “Magic Box” known as any automatic transmission is impossible to diagnose from an armchair position. If no warning light appears or an error code on a diagnostic tester, odds are the transmission must be somewhat disassembled and repaired. Which means it’s time for a full rebuild, because once you crack that bitch open (at this age, even at this low mileage) you might as well do the damn thing.

As much as I’d like to stay fair and balanced with such modest information, I’ve seen/heard too many horrible Chrysler transmission nightmares from the past 20+ years to not jump to one conclusion: replace the transmission with one that works (and has a warranty) from the junkyard and sell it immediately.

If it quacked like a duck but now smells like pâté…it is probably a grenaded Chrysler transmission. Such is the life of an old Chrysler product.

Send your queries to sajeev@thetruthaboutcars.com. Spare no details and ask for a speedy resolution if you’re in a hurry…but be realistic, and use your make/model specific forums instead of TTAC for more timely advice.

#Chrysler #Dakota #Dodge #Rebuild #Repair #Replace #Transmission #V6

Sajeev Mehta

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2 of 6 comments

PonchoIndian on May 29, 2013

Had the exact same problem with a 2000 Dakota 3.9 with 4wd @51000 miles. Turned out to be a valve body issue. I believe all of the transmissions in that body style Dakota are electronic. Brought it to the dealer and they replaced the valve body and it has been fine ever since. As others have said, it most likely doesn't need a complete rebuild if the fluid looks ok and it suddendly just started doing this out of the blue. There is a slight chance that it is an o-ring internally, but that usually causes other shifting problems (of course depending on how the transmission is set up). Have you tried disconnecting the battery to reset all of the electronics? Sometimes a re-boot of all the computers can do wonders.

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Greaseyknight on May 29, 2013

A bit of googling reveals that the transmission in this truck is a descendant of the A904 TorqueFlite from the 60's with another gear and electronic controls. So I don't think its that unreliable of a beast. Now, to fix it, I would get the vehicle to a good shop that is skilled in diagnosis of both transmissions and electronics. It could be everything from a wasted trans to the VSS not working and thus not telling the computer to up-shift.

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