Intermittent Loss of Power. Jaguar S-Type Diesel Sport

Intermittent Loss of Power. Jaguar S-Type Diesel Sport

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Harvest

Original Poster:

11 posts

139 months

Monday 23rd March 2015
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Hope someone can advise.

I have recently purchased a 2004 S-Type 2.7d Sport (the one with the exhausts bent down facing the road) with 161,000 miles on the clock.

I have an intermittent fault developing and would like some advice as to what may be wrong before I visit a dealer.

Symptoms are as follows:

Most of the time, having started the engine and accelerating away from stationary the car performs as it should with good power. However, sometimes the car holds back and wont accelerate at all, being lucky to reach 30mph. It feels similar to driving a car which has a speed limiter fitted and you try to go above the limit.

If I pull over and turn the engine off and turn on again the fault clears. At no time is there any fault code displayed.

If however, instead of doing the above procedure, I kick down the accelerator and hold the pedal there, after a delay of at least 5-6 seconds, acceleration will suddenly kick in but in the process smoke is seen to come out of the exhaust when normally there is none.

Today I also noticed that although the car started out ok, when I pulled away from traffic lights on the same journey the fault came back.

Here's hoping someone can advise.

Harvest

Original Poster:

11 posts

139 months

Thursday 26th March 2015
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Thanks for your suggestions

Harvest

Original Poster:

11 posts

139 months

Thursday 26th March 2015
quotequote all
Mopar440 said:
Have you actually plugged in fault code reader? And there was "no fault code displayed"?
No.I'm referring to the dashboard warning display

Harvest

Original Poster:

11 posts

139 months

Friday 27th March 2015
quotequote all
LFB531 said:
I've just had a look at the paperwork I got with my EGR blanking kit and it is the same for the S type as the Range Rover Sport, apparently pre '07 is ok for the ECU. My local garage replaced both EGRs in an hour with blanks for less than £100 including the kit price. No noticeable difference in the way it runs, I had the V6 re-mapped shortly afterwards and the total cost of the blanks, labour and re- map was not far off the the cost of swapping the two EGRs with new ones.
Any issue with blanking off EGRs and passing MOT emissions test?

Harvest

Original Poster:

11 posts

139 months

Saturday 28th March 2015
quotequote all
LFB531 said:
No, MoT fine, the garage that blanked it also does the annual test as well and are pretty hot on the rules and regs as I know to my cost!
Thank You. I'll need to diagnose if it is the EGRs then I'll consider my options.