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Haribo2k7

Member

• May 29, 2017

• #1

Started last night when driving all of a sudden it went very vibey and can feel it all the time I did unplug my maf sensor the other day as had loss of power and it made it.loads better could this be the problem?

 

Nodge68

Well-Known Member

• May 29, 2017

• #2

I'm assuming it's a TD4?

Is the MAF still unplugged?

 

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Haribo2k7

Member

• May 29, 2017

• #3

Yea td4 yes still unpluged at the minute it ran good without it.for a week now vibrating badly.

 

GrumpyGel

Well-Known Member

• May 29, 2017

• #4

Could be the crank shaft pulley - they have a rubber damper between the inner and outer elements which delaminates. If its dark, shine a torch on it while the engine is running and see if there are and shiny flecks of metal floating around.

 

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Haribo2k7

Member

• May 29, 2017

• #5

Just drove it to the garage and its gone away now strangely

 

Dippypud

Never Knowingly Understood

Full Member

• May 29, 2017

• #6

Engine mounts ?
Is the vibration frequency related to the engine speed? If not is it road speed dependant?

 

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Haribo2k7

Member

• May 29, 2017

• #7

It went away but seems to come on when I turn full lock one way and then disapeares when drive down the road a bit mainly noticable on stamd still

 

GrumpyGel

Well-Known Member

• May 30, 2017

• #8

Defo check the main pulley as it turns the PAS pump

 

Nodge68

Well-Known Member

• May 30, 2017

• #9

Haribo2k7 said:

It went away but seems to come on when I turn full lock one way and then disapeares when drive down the road a bit mainly noticable on stamd still

Click to expand...

Sounds like the damper pulley has de-laminated.
I've not really noticed an increase in engine vibration when they have failed. This is why they are difficult to detect on occasion. Most of the time there is a just a noise when at full lock or when the AC is on.