Hi,
My Mondeo 2.0 TDCI 130 53 reg seems to run fine, but when I start the engine there is a rattle that lasts a second or two.
Engine runs smoothly , but I get a slight rattle when I turn the engine off.
I know little about diesel engines, actuall less than little, but did read online that diesel engines can rattle when overfilled with oil.
My oil warning light was on intermittently after I left the car standing for a five week period over the cold christmas period.
After adding a bit extra oil and running for a couple of days the warning light stopped.
Also read rattles can relate to belts / chains.
I bought the car in Feb 2010, the mileage is 91000 and the car has a full service history including a full service in early december.
Any views on diagnosis / prognosis would be welcome.
Thanks
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A rattle on start up and turn off could be the start of the dual mass flywheel breaking up.Does the noise change if you put your foot on the clutch pedal?
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Thanks for the feedback.
I've just been in the car. The following happens regardless of whether I have the clutch down or not.
On start up, there is a thudding noise and car seems to shake. This lasts less than a second , and then engine sounds ok.
When I rev the engine it sounds fine.
When the engine idles after revving there is a bit of a rattle for a short while (depressing clutch has no effect ) but it settles down.
When I turn engine off there is a thudding noise / slight shake, similar but less pronounced than that experienced when starting the engine.
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Sounds as though might have metal to metal contact as the engine tends to move more on start and stop, could be the exhaust coming into contact with something or a faulty engine/gearbox mounting.
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Thanks.
Does the fact that pressing the clutch has no effect suggest it is not a DMF issue ?
I know nothing about DMFs other than that they can prove expensive.
If it was engine mounts , does that require immediate attention, and is it a big problem, with costly remedy ?
Could it result in catastrophic (i.e. to car) event , or is it just something that will get progressively worse ?
I guess the car is worth about 2k without the problem.
Might it be worth adopting a breakdown maintenance approah and scrap when it does go pop ?
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I had a similar sort of 'difficult' start my TDCI - slow to start, rattles. I put it down to just normal for diesels, as once started the engine ran smoothly. However after cleaning out the EGR valve and giving the car a bit of an italian tuneup, the engine seems to start a lot easier. Turning the aircon off may also have helped.
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I took the car to my mechanic and explained the symptoms.
He grimaced and said oh dear as I went through what I'd found.
'Sounds expensive' he muttered. '....... they've got this thing called a Dual Mass Flywheel ..... oh dear ...'
I started the engine, and it made the usual noise.
'Oh that sounds like a dodgy exhaust bracket'
stopped the engine
'So does that !!'
He climbed under and confirmed exhaust was a bit loose.
So, taking it back on Monday (earliest I could manage) when he'll sort the exhaust fittings, and hopefully that will be it.
Sorry if I've been a bit dim and wasted your time.
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There you are then - that will be 7/6d
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I had the same problem noisy as hell on tick over and when starting and switching off.Bet your bottom dollar it needs a new crankshaft pulley and belt. Mine ticks over like a goodun now(which it isn't ) but it also feels so much smoother. the pulley is like a small dmfw.to absorb stop start shocks.pulley £85.00 belt £15.00 plus fitting.jj
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