Time to see how good the warranty is on the tranny rebuild! Driving home today - went to accelerate from a stop - clunk, gear box fault
read codes and am getting a P1747 - assuming the 99 codes are the same - pressure regulator 3 malfunction - can I reset or should I reset?


Would it be safe to drive to the shop (10miles) or get towed?

 

I have been following your advice here for 3 years, so I hesitate to suggest that a valve problem is not going to cause a major failure, but that's my feeling.

 

Five pressure regulator solenoids should read between 4.8-6.8 ohm
The three shift solenoids should be between 25-35
Transmission to TCM pressure regulator (3) circuit, open, or short circuit
Transmission internal pressure regulator (3) circuit, open, or short circuit
Pressure regulator (3) failure

Please check fuse #4 (5 amp) in the smaller engine management fuse box in the engine compartment and fuse #1 (10 amp) in the larger engine compartment fuse box,check your brake booster hose and all areas for vacuum leaks.

This is a very common issue, you might even get away with clearing the codes by removing the neagaitve cable and touching to the positive for 30 seconds

 

aode06 - thanks for the advice - will take a look here shortly and report back. Hope it is something as simple as described


rj - yeah I definitely don't want to make it any worse - so will try the fuses first

 

wasn't fuses and cleared for a day only to return -took to my indie and they are sending the car back to the tranny shop under warranty - valve body issue. driving an British Land yacht (XJ8) as a loaner. very nice ride as well!!!

 

While I have been enjoying driving an XJ8, the tranny shop has isolated the issue to a short in the internal cable harness to the valve body and are replacing the harness. Should have kitty back tomorrow!!!!!!!!

 

Like man! When mine was rebuilt they reused the old harness and I popped "high temp in Trans" for a month or two. Seems a total rebuild should include a new harness but we live and learn!

 

let's hope others see our plight and force the issue should they ever have to get a rebuild

 

LaRue - curious - how long after the rebuild before you started seeing issues??? Mine was rebuilt in May/June time frame of this year. This was the first problem and luckily it came with a 2 year warranty

 

Steve, the light on for high temp came on in about a month. I had a one year warranty so I took it back to the shop. The tranny was rebuilt by another shop and the price for the rebuild included reusing the existing harness, not a new one! The valve body was replaced in the rebuild as the old one had a crack. Due to the very high cost of the Jaguar tranny fluid I decided not to have the harness replaced. It would trigger every month or so but cleared with a restart. Now it has been about a year since it triggered, hope it says that way! Yes, others should be aware of the harness issue in rebuilds.

 

http://www.jagrepair.com/images/TSB/...body%20TSB.pdf

is a pic, our electrical connectors are garbage lol, the moment you take em off crack, snap, pop !

 

got her back this afternoon - had to drop the top for a nice brisk afternoon ride!!!!!!!!!!

 

I hope you've gotten it straightened out now. Did they give you any explanation of what they suspect happened or what they did to correct the problem?

 

Craig, I had the tranny rebuilt a few months back and they reused the old harness. One of the connectors on the harness was damaged causing a short - which was seen as a pressure fault in the valve body. they put in a new harness as part of the rebuilds 2year warranty - so far so good!


as aode06 mentions, the connector on the cable harness is garbage. It may be good for a few years but over time (14+years, 132650miles), just like some of the other plastic parts, the heat they are subject to causes them to break down.

 

Thanks for keeping us posted on the harness fix. Here's to many trouble-free miles ahead for you now....