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Jaguar X type gearbox fault and transmission systems fault

Hello all, my name is Eddie and I live in St. Louis MO. I purchased my 04 Jag X type in March of 2013 and it is Feb 2014. I have had an instance, maybe 8-9 months ago, where I'm driving normally and I slow down at a light. A "gearbox fault" & a "transmission systems fault" light come on and the car idles high and will not accelerate. I turn the car off and back on it idles high and does not accelerate again. Happens 1-2 more times. I restart the car again and as if nothing happened it drives normal. Neglecting the CEL that comes on and off periodically after that I push it off until "warmer weather." It wasn't a problem until recently, but this time in 5 miles of driving it happens 3-4x!!! I take it to Jaguar on Olive in Creve Cour Missouri and they barely diagnose it as a throttle body issue(6-7months ago). Now that the problem has increased I decide to unplug the battery and clean out the throttle body w a throttle body and carb. cleaner. I drive it to test it out again, SAME PROBLEM!!!! The throttle body is clean (I'm assuming) could it be a TPS or some other sensors around it? Should I just replace the throttle body or what? I obviously want this problem to go away but would also like the cheapest route available (at least to begin w/) are there any remedies or things I can do before I make a costly decision? I've been reading the reviews and there are problems similar but not any that are 100%exact. Thank you VERYYYY much! -Eddie

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  • 7 Answers

It is going to be your TPS. I have a 04 a type r that had that exact problem. The only problem is they do not just sell the sensor by itself. The quick and easy fix is to loosen the tps and turn it sligty as and tighten it back up.

Posted on May 02, 2014


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Posted on Jan 02, 2017

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The transmission model in your car is a 5R55N which is manufactured by the Ford motor company.There are currently 3 different modles of the 5R55,including also the W and S models.The Pressure Control Solenoid is a part of,the solenoid block.The solenoid block is mounted just inside the transmission pan,and can be replaced with a new one to see if it fixes the problem.If the trans ultimately needs to be rebuilt,a new solenoid block would be installed on one of my rebuilds anyways.If the solenoid block doesn't fix the problem,the trans would either have to be removed and rebuilt,replaced with a remanufactured unit,or replaced with a salvage yard,good used unit.Good luck.

Posted on Aug 06, 2008

SOURCE: jaguar x-type 2002 2.5L

most likely the ran it up on the lift and that triggers all these. you should be able to bring it any local garage and they should clear it. 

Posted on Sep 11, 2008

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