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04 Jaguar x type 3.0 A/T gearbox fault & transmission systems fault

Hello Richard, 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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Posted on Jan 02, 2017


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

  • 682 Answers

SOURCE: 2002 Subaru Forester P0136 see P2270 P2271 intermittent idling fluctuation and acceleration hesitation

Is the wiring good going to the O2 sensors? Maybe just look the car over and see if you have any bad grounds. They can do weird things. Could be a bad ICU.

Posted on Jan 22, 2012

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