Hi All

I have a slight problem with my MK2 mondeo,
every now and again when changing gear the engine revs its nuts off and then the revs drop down again, someone has said its a seal thats gone, so 1 if so which one ,
2 is it easy to repair
and 3 do we know the average cost and where the best place to get them
Many thanks

rammer

 

VSS sensor I should think, yes fairly and Ford's or motor factor, the bay etc.

Martin

 

Thank you martin will have alook
are they easy to replace, also what is the VSS and where is it please

george

 

VSS (Vehicle Speed Sensor) it's fitted to the box, not not particually difficult to replace.

Martin

 

this happens on focus and fiesta as well but is caused usually by the clutch switch on those

 

Thank you Martin and Botters
Will have a look tomorrow and try and get this sorted, always seems to rev up in the middle traffic and clouds of black smoke for and instant, a bit embarrassing but would like to sort it ,
Thanks again
George

 

Is it a diesel, and when you say it revs up, does it rev flat out, black smoke and knocking from engine?

If so -There is a capsule on the diesel pump with a long thin pipe that's connected to the turbo, inside the capsule there is a diagphragm, if it splits it can suck diesel through the pipe straight into the turbo

 

Morning GVK
Yes it is a diesel 1997 MK2 I have checked this pipe and there is no splits but it fills up with diesel, What is the technical name for this diaphram , where will I get one from and is it easy to change, Thaks in advance
George

 

Now we know it's a Diesel, ignore what I have said.

Martin

 

Thanks Martin
I have senior moments here in France. OK so where do we find this Diaphram any pics. and how do I rectify the problem,
I am sure there was an issue on this forum 18 months ago or more but I cannot find it,
Any suggestions please
George

 

It's called a 'boost capsule' - from memory, it's not available from Ford, but seem to remember having one done by a local diesel specialist. CF Parkinson in Boston, Lincs.

http://www.parkinsons.co.uk/Boston.aspx

Disconnect/block the pipe as a temporary measure.

 

Thank you Gary there must be a Guru on here somewhere that would know how to change this diaphram, hopefully someone will reply.
I will give them a ring tomorrow fingers crossed

George

 

Has anyone ever changed a boost diaphrm before and whats the best way to tackle it,
On a Mondeo diesel MK 2 1997
Thanks in advance
Rammer