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Paullr90

Member Since: 06 Feb 2011
Location: Derby
Posts: 93

2003 Defender 90 Td5 XS CSW Bonatti Grey

Delayed throttle response

Evening guys, anyone had this before?
I'm getting about a second delay in throttle response. It's most noticeable when pulling out a junction shifting up the gears the engine continues at high revs when the clutch is dipped before dropping off as usual and then it's slow to build up the revs again.
I've already changed the injector harness and fitted a new throttle pedal but that hasn't had an effect. I'm now wondering if it's a clutch problem?
Anyone any ideas?
Cheers,
Paul. 2003 Td5 90XS
1970 Series 11A 2.25TD
2013 Freelander 2 HSE Lux (the wife's)

31st Jul 2019 10:03pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5422

2006 Defender 110 Td5 USW Zermatt Silver

Does it think it is in low range on the transfer box?

MAF always effects acceleration, but wouldn’t cause it to hang onto revs, but unplug and try.

Is it the same when on tickover? With mine the slightest touch of the pedal gets it reving

31st Jul 2019 10:36pm

Vogler

Member Since: 02 Nov 2014
Location: Brussels
Posts: 309

Most likely the clutch pedal switch / fuel cut-off switch is defective. For the Td5 it's part MSK500010. It sits on top of the clutch master cylinder.
Mind that it is not compatible with its Td4 counterpart, although they look the same.

Regards,

Joris Antares Treadwell, a MY06 110 Td5 in Chawton White

1st Aug 2019 12:59pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5743

1999 Defender 110 Td5 SW Caledonian Blue

Mine is much better after having new injector seals and the timing set correctly. Still have a delay but not as bad as it was. Low revs/1st gear starting off is better as well. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2019 1:34pm

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

I drive with the clutchpedal sensor disconnected. You can try that. Or if that doesn't help short the connector you pulled off the sensor. If both do not solve the problem then it is not the clutch pedal sensor. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

2nd Aug 2019 7:30am

Paullr90

Member Since: 06 Feb 2011
Location: Derby
Posts: 93

Vogler wrote:
Most likely the clutch pedal switch / fuel cut-off switch is defective. For the Td5 it's part MSK500010. It sits on top of the clutch master cylinder.
Mind that it is not compatible with its Td4 counterpart, although they look the same.

Regards,

Joris

Thanks Joris. I took the connector off to find it full of oil. Looks like the seal must have gone and this caused the clutch pedal switch to short. Got a new switch on order so fingers crossed that's it solved.
Thanks again.
Paul. 2003 Td5 90XS
1970 Series 11A 2.25TD
2013 Freelander 2 HSE Lux (the wife's)

4th Aug 2019 10:41am

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Without the plug connected, is the problem gone? You can drive it this way, the ecu doesn't really need the clutch signal. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

4th Aug 2019 7:57pm

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