S40 19td surge ???

genoff2000 · Jan 1st, 2008, 21:06

Hi all

I have a 03 S40 19td and sometimes it surges when i am driving along.

when i am driving at a constant speed of 50 or 60 you can feel the car surge

generally the car is spot on

any ideas or advice would be great

cheers

G

Bob Clark · Jan 1st, 2008, 21:32

If the accellerator pedal is being held in a constant position and the car surges forward without altering the pedal's position it usually means that air is getting into the fuel system. Have you recently worked on it? Check the tightness of the fuel unions and the fuel filter. You could try draining the filter and then repriming it, I don't know if it has a priming button tho. The fuel system usually works on a vacuum so it very easily draws air in. Hope this helps Bob

genoff2000 · Jan 1st, 2008, 22:20

cheers bob

i have not done any work lately, the car sort of surges back and forward,

it does not happen all the time

it starts fine, and runs and drives fine

i have been reading a lot about the egr valve could it have anything to to with it

Jan 1st, 2008, 21:06	#1
genoff2000 Junior Member Last Online: Aug 4th, 2014 14:30 Join Date: Nov 2003 Location: Belfast View Photos By: genoff2000	S40 19td surge ??? Hi all I have a 03 S40 19td and sometimes it surges when i am driving along. when i am driving at a constant speed of 50 or 60 you can feel the car surge generally the car is spot on any ideas or advice would be great cheers G

Jan 1st, 2008, 21:32	#2
Bob Clark Bob Clark Last Online: Oct 2nd, 2008 19:34 Join Date: Aug 2007 Location: South Shields	Re surge If the accellerator pedal is being held in a constant position and the car surges forward without altering the pedal's position it usually means that air is getting into the fuel system. Have you recently worked on it? Check the tightness of the fuel unions and the fuel filter. You could try draining the filter and then repriming it, I don't know if it has a priming button tho. The fuel system usually works on a vacuum so it very easily draws air in. Hope this helps Bob __________________ The crumple zone of a Volvo is the other car.

Jan 1st, 2008, 22:20	#3
genoff2000 Junior Member Last Online: Aug 4th, 2014 14:30 Join Date: Nov 2003 Location: Belfast View Photos By: genoff2000	cheers bob i have not done any work lately, the car sort of surges back and forward, it does not happen all the time it starts fine, and runs and drives fine i have been reading a lot about the egr valve could it have anything to to with it

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