All of a sudden while driving the car will lose power?

Tiny
BROOKLYN56
  • MEMBER
  • 2004 JAGUAR X-TYPE
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 50,000 MILES
I have a 2004 jag xtype 3.0 awd all of a sudden while driving the car will lose power but still run with trans light then engine light. You have to turn the car off and then back on and its fine. Its happened 3x in 4 days. Please help. Thanks
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Tuesday, February 23rd, 2010 AT 8:33 AM

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Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

One of the common reasons for an engine to go into low power or limp mode is a dirty throttle actuator. Over time the throttle actuator can have dirt and debris built up inside. Which can cause it to send incorrect data to the ECM and that could trigger the limp mode.

https://www.2carpros.com/articles/reduced-power-limp-mode

Many times, cleaning out the throttle bore can improve the drivability.
Here is a helpful guide on how to clean the throttle body:

https://www.2carpros.com/articles/throttle-actuator-service

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Thursday, December 9th, 2021 AT 9:14 PM

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