Question about 2003 Jaguar S-Type

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Restricted performance My restricted performance light flashed on and then disappeared. A few minutes later it seized up. Then it didn't do it again; a few days later did it again. It starts and rides when cold but once it gets hot it seizes and shuts itself off. The oil is full, new radiator, new brakes... What could it be?

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  • Jaguar Master
  • 64,241 Answers

POSSIBLY THE THERMOSTAT NEEDS REPLACED

Posted on May 08, 2019

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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johnthejag
  • 286 Answers

SOURCE: Immobiliser won't unlock on XJ TDVi

Hi

I suspect the cold weather was the fundamental problem, usually emanating from a battery voltage drop, and kicking in the on board computer gremlins.

Jags just don't like it !

Lets hope the weather improves for you there in UK, and your little gremlin does not return.

Good Luck !

John.

Posted on Jan 19, 2009

  • 1986 Answers

SOURCE: check engine light is on,display says restricted performance

Anything can cause the check engine light to go on from a loose gas cap, to a transmission issue. When the onboard computer detects an issue, it will restrict performance so as to not damage the engine any further. An Oil change won't affect this light. The only way to determine the cause of the light is to have the computer scanned with an OBD-II tool (Autozone does this for free) to determine the codes and cause for the light. You can also clear the light with the OBD-II tool, but if the problem is still there, the light will just come back on

Posted on Sep 16, 2009

  • 1 Answer

SOURCE: jaguar s-type restricted performance

I had the same problem. Restricted performance and running rough at 3000 RPM. I have an OBDII code reader and found that the problem was in the air mass flow sensor, which is just after the air filter. I pulled this out and found it was dirty and had butterfly wings in it. The last shop where I had the oil changed replaced the filter for me but put in the wrong size. Close but no cigar. Bought some *** Flow Sensor cleaner at auto store and fixed the problem. Get an OBDII reader with the ability to erase the codes. Comes in real handy.

Posted on Mar 01, 2010

raygin
  • 322 Answers

SOURCE: park brake seized on

Often caused by low battery voltage - quick check = disconnect battery (make sure you have the radio code) leave for 10 mins then reconnect. follow the instructions on the dash board info panel and if this resets your brake then the battery is probably suspect. If it does not you may have a problem with the park brake module or the motor. hope this helps - good luck!

Posted on Jan 24, 2011

creg_912
  • 196 Answers

SOURCE: My S-type will sometime read restricted

its sounds like its between the oxygen sensor..and your throttle body sensor..Normally the difference between the oxygen sensor it will display all these things except the dsc mil.Make sure that you dont wash the engine caompartment near the firewall,this can lead to water getting into the TBS and cause the sensor to go bad,and also near the MAF in the air cleaner elbow.Water can short this sensor.But intermitant restricted performance can show do to a knock sensor malfunction also it will code p0327 or the oxygen sensor.Go by Antozone let them scan the car for codes and freeze frame data.The Actron obdii scanner does well with Jaguars.

Posted on Aug 05, 2011

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