1997 S40 TD revving on its own

Spitfire · Jan 24th, 2008, 10:04

Heya .

i have a 1997 s40 td 1.8 which when warm on idle will rev its self and occasionally stall

it idles at 1000rpm and when it revs it jumps up to 2500rpm and then drops back down .
The stalling prob seems to do it when coming to a stop and its a pig to get back started but will after say a min or 2 of trying

Then today i noticed in a short journey it was started juddering at 40mph then cleared its self Any ideas??

Please help

DRILL · Jan 24th, 2008, 10:45

clean up your idle stepper motor

Spitfire · Jan 26th, 2008, 11:32

Thanks for the pic but i cant fine anything remotly looking like that on my engine

DRILL · Jan 26th, 2008, 15:01

just on the edge of the engine cover, right side facing the, there is a black cover thats the one which covers that motor there is a single screw to take off the cover

4 forty · Jan 26th, 2008, 16:48

there is not a stepper motor on the diesel variant.

Spitfire · Jan 27th, 2008, 17:05

Well i'm going to change the Fuel Filter sometime soon and see if that helps

rmt1982 · Feb 4th, 2008, 23:01

I was talking to someone at the dealership about a similar problem on my S40 (1997 1.9TD), and they said that the main cause of the problem is a blockage within the fuel filter somewhere (normally due to it standing for a long time), or the associated pipework.

Jan 24th, 2008, 10:04	#1
Spitfire New Member Last Online: Aug 21st, 2008 11:46 Join Date: Jan 2008 Location: Fareham	1997 S40 TD revving on its own Heya . i have a 1997 s40 td 1.8 which when warm on idle will rev its self and occasionally stall it idles at 1000rpm and when it revs it jumps up to 2500rpm and then drops back down . The stalling prob seems to do it when coming to a stop and its a pig to get back started but will after say a min or 2 of trying Then today i noticed in a short journey it was started juddering at 40mph then cleared its self Any ideas?? Please help

Jan 26th, 2008, 16:48	#5
4 forty VOC Member Last Online: Aug 12th, 2015 14:44 Join Date: Dec 2001 Location: sunderland	stepper motor there is not a stepper motor on the diesel variant.

Jan 24th, 2008, 10:45	#2
DRILL Junior Member Last Online: Oct 18th, 2011 19:43 Join Date: Aug 2007 Location: luton	clean up your idle stepper motor

Jan 26th, 2008, 11:32	#3
Spitfire New Member Last Online: Aug 21st, 2008 11:46 Join Date: Jan 2008 Location: Fareham	Thanks for the pic but i cant fine anything remotly looking like that on my engine

Jan 26th, 2008, 15:01	#4
DRILL Junior Member Last Online: Oct 18th, 2011 19:43 Join Date: Aug 2007 Location: luton	just on the edge of the engine cover, right side facing the, there is a black cover thats the one which covers that motor there is a single screw to take off the cover

Jan 27th, 2008, 17:05	#6
Spitfire New Member Last Online: Aug 21st, 2008 11:46 Join Date: Jan 2008 Location: Fareham	Well i'm going to change the Fuel Filter sometime soon and see if that helps

Feb 4th, 2008, 23:01	#7
rmt1982 Plodding along.. Last Online: Oct 15th, 2008 18:06 Join Date: Oct 2007 Location: Doncaster View Photos By: rmt1982	I was talking to someone at the dealership about a similar problem on my S40 (1997 1.9TD), and they said that the main cause of the problem is a blockage within the fuel filter somewhere (normally due to it standing for a long time), or the associated pipework.

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