DISCO4.COM - View topic - Long delay before power comes in

brianabbot

Member Since: 06 Feb 2010
Location: Rye
Posts: 85

2010 Discovery 4 3.0 TDV6 HSE Auto Santorini Black

Long delay before power comes in

Hi, I pulled off a bit quick today and not a lot happened, as I had pulled onto a busy dual carriageway I kept my foot to the floor and crawled along at 5 mph for 4 or 5 seconds which seemed a lot longer before the revs shot up and the car launched off, all the way back the car has been almost undriveable when pulling away with a complete loss of power until it suddenly takes off. Driving on the motorway everything is fine, it pulls normally around 70mph, but if the revs drop it takes ages to pick up again, my helpful dealer can't look at it till next week, doesn't have a courtesy car for two weeks and said it was probably a software issue and would be ok to drive. Has anyone any ideas? There are no warning lights or untoward noises and the weird thing is that once the power does come in it still flies along. I drove around 200 miles and filled up the tank in case it was a fuel issue.

29th Nov 2012 6:21 pm

Woolmeister

Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464

Initial thoughts are one or both EGR valves. Get them blanked rather than replace them. Best option. Buy a BAS blanking kit from Bell Autos.

Steve 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
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29th Nov 2012 6:24 pm

Disco_Mikey

Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20836

2005 Discovery 3 TDV6 HSE Auto Cairns Blue

EGR valve failure

Get yourself a pair of blanking plates off eBay for Â£10

My D3 Build Thread

TDV8 Retrofit Build Thread

Last edited by Disco_Mikey on 29th Nov 2012 6:27 pm. Edited 1 time in total

29th Nov 2012 6:25 pm

NJSS

Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10792

2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo Grey

It would be nice to know mileage & service history.

Many of us have had a remap by Pete Bell of Bell Auto Services to cure this problem - search the forum and:-

http://bellautoservices.co.uk/bas-remap-interface/

NJSS Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
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29th Nov 2012 6:25 pm

brianabbot

Member Since: 06 Feb 2010
Location: Rye
Posts: 85

Hi, it's got pretty much a full history apart from a couple of services very early on,it's done 120,000 miles and is due for its service again, I had the cam belts etc done last time

29th Nov 2012 6:33 pm

Woolmeister

Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464

http://bellautoservices.co.uk/products/lan...nking-kit/

Don't bother replacing them. They'll only fail again and your D3 will effectively be passively smoking as long as you still have EGR Valves fitted. They are the work of the devil.

Steve 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park!

29th Nov 2012 6:37 pm

al cope

Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10350

I'd stake my money on a duff EGR valve. If it doe it again, instaed of keeping you foot down, lift off and re-plant your right boot. Sometimes helps, but fix is blank the EGR's off. As has been said, less than a tenner for blanking plates, and approx 1hrs work (can be done in less

)

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29th Nov 2012 6:39 pm

brianabbot

Member Since: 06 Feb 2010
Location: Rye
Posts: 85

Thanks everyone, I've emailed bell auto to see if there's any chance of getting a Saturday delivery for the blanking bits so fingers crossed,

29th Nov 2012 7:05 pm

Bosvark

Member Since: 11 Jan 2012
Location: Stalybridge
Posts: 24

2005 Discovery 3 TDV6 HSE Auto Java Black

Hi Brian
I have a simular problem on mine at the moment, same simptoms but also have a fault flashing up on dash "transmision reducing trac" fault and HDC fault.
I had the Torq-converter changed a week ago- had the cattle grid effect issue. was not happy with it when returned, cause when you lift foot of accellerator it almost nose dive, release, nose dive, release ( thats without touching the brake pedale)
So its going back in tomorrow

The mechanic suggest it might be a comm/link issue between brakes/traction control and gearbox.
Please keep us up-dated on to the results of blanking the EGR's please

30th Nov 2012 6:33 pm

brianabbot

Member Since: 06 Feb 2010
Location: Rye
Posts: 85

Hopefully I'll be fitting the blanking kit tomorrow so ill let you know as soon as its done

30th Nov 2012 11:14 pm

brianabbot

Member Since: 06 Feb 2010
Location: Rye
Posts: 85

Hi, good news, I've just fitted the blanking kit and the car is running perfectly, the instructions were really easy to follow and it only took a couple of hours from start to finish, the only thing I had to do was to fit washers above the blanking plates as my bolts were a bit corroded further down and I think the blanks were a bit thinner. The inside of the butterfly section was thick with black gunk which I cleaned out although bizarrely the map sensor did not have any muck on it at all. I know people say this all the time but really if I can fit this then anyone can, the hardest part was stopping my stupid German shepherd running off with any bits I laid on the drive!

1st Dec 2012 1:01 pm

Woolmeister

Member Since: 26 Mar 2007
Location: Chandler's Ford
Posts: 3464

Good news. Well done. Did mine a year or so ago and had no trouble since.

Steve 2021 BMW iX3 Premier Edition in Carbon Black ⚡️🔌
2019 Škoda Kodiaq 2.0 Tdi 190 DSG Sportline in Quartz Grey. Excellent vehicle. Gone.
2017 Discovery Sport HSE Auto in Carpathian Grey and Ebony Leather. Modern JLR Junk. Gone.
2007 Discovery 3 TDV6 S Manual in Zermatt Silver with Ebony Cloth (143k) Gone, but now patrolling the Asia section of the West Midlands Safari Park!

1st Dec 2012 9:19 pm

brianabbot

Member Since: 06 Feb 2010
Location: Rye
Posts: 85

Cheers Steve, I've done about 150 miles today and it all runs fine, I can't see much improvement in mpg or performance so I'm thinking mine failed suddenly and were probably working ok up until Thursday.

1st Dec 2012 10:22 pm