PRND432 all lit up part 2
01-02-2004, 11:08 AM
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PRND432 all lit up part 2
Further to my earlier post on this, an update.
The original post reported that two days after a service, PRND432 lit up on the dash. A flying visit to the dealer revealed that the car was showing error codes (still don't know what), but that they could not be cleared. I suspected at the time that the car was driving normally.
Now the update: 350 miles later, the car is definitely driving normally. Gears 1-5, full kickdown (floored it at 70mph today, dropped two gears tothird then revved to 6000 rpm showing at about 90mph - then shifted up, and up again). No roughness in up or down shifts. Full tip control on the lever or the steering wheel (except that you can't see what gear you're in, and therefore have to count).
The dealer had the car for 3/4 of a day today. He determined that there were no faults in any wiring, and therefore(?) the fault was genuine - the computer says it is a solenoid in the gearbox.
However, the computer is also telling the dealer that I only have gears 1-3 - so much for that!
The dealer says the next step is to open up the tranny and check the solenoid that's at fault (I am going to try to get the error codes tomorrow). He also says this exercise will trash a gasket, which will therefore need to be replaced - cost not yet reported.
What I can't get is how anything mechanical can be wrong when the 'box in use is not showing any signs of mechanical error. So my question is whether it is possible for a solenoid to have gone, with no obvious effects. I think from other posts that one controls the torque converter, and wonder if you could live without that quite happily in a 4.2.
Any insights from those that understand trannies?
The original post reported that two days after a service, PRND432 lit up on the dash. A flying visit to the dealer revealed that the car was showing error codes (still don't know what), but that they could not be cleared. I suspected at the time that the car was driving normally.
Now the update: 350 miles later, the car is definitely driving normally. Gears 1-5, full kickdown (floored it at 70mph today, dropped two gears tothird then revved to 6000 rpm showing at about 90mph - then shifted up, and up again). No roughness in up or down shifts. Full tip control on the lever or the steering wheel (except that you can't see what gear you're in, and therefore have to count).
The dealer had the car for 3/4 of a day today. He determined that there were no faults in any wiring, and therefore(?) the fault was genuine - the computer says it is a solenoid in the gearbox.
However, the computer is also telling the dealer that I only have gears 1-3 - so much for that!
The dealer says the next step is to open up the tranny and check the solenoid that's at fault (I am going to try to get the error codes tomorrow). He also says this exercise will trash a gasket, which will therefore need to be replaced - cost not yet reported.
What I can't get is how anything mechanical can be wrong when the 'box in use is not showing any signs of mechanical error. So my question is whether it is possible for a solenoid to have gone, with no obvious effects. I think from other posts that one controls the torque converter, and wonder if you could live without that quite happily in a 4.2.
Any insights from those that understand trannies?
