Ford Mondeo III (2000 - 2007) - 04 TDCi Lack of power and hissing noise - Turbo ?

Honest John Back Room » Technical matters
What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
View Threaded
Sun 26 Aug 2007 23:27
04 TDCi Lack of power and hissing noise - Turbo ? - boumph
I have a Ford Mondeo TDCi on a 54 plate. After an extended motorway run I stopped for 10 mins. On rejoining the motorway I noticed a noise like rushing air when accelerating. The torque is down and grey smoke is appearing from the exhaust. MPG is also down (according to the computer). It is running a bit lumpy when accelerating. There are no strange noises at tick over and there are no warning lights flashing. I got home OK but am not happy. Turbo problems?
Any suggestions?
Reply | Report as offensive | Link
Mon 27 Aug 2007 00:55
04 TDCi Lack of power and hissing noise - Turbo ? - Screwloose
boumph

Any hissing or similar noise under load suggests a turbo duct or intercooler problem. Leaks often give themselves away with oil stains; worth a look.

You might be able to get it to do it stationary if you can get someone to quickly blip the throttle while you listen under the bonnet.
Reply | Report as offensive | Link
Mon 27 Aug 2007 09:49
04 TDCi Lack of power and hissing noise - Turbo ? - bikerider
Sounds like you have a split intercooler pipe, most likely to be the one on the egr valve . But as a precaution i would check them all.
Reply | Report as offensive | Link
Mon 27 Aug 2007 10:11
04 TDCi Lack of power and hissing noise - Turbo ? - boumph
Thankyou Screwloose, I have tried listening for the hissing with the bonnet open, but can hear nothing out of the ordinary. I also can see no oil leaks. Where should I be looking? I did see a wisp of smoke coming from the toop of the turbo? Where the air induction pipe goes. There is a wire in there which rotates round a wheal when the accelerater is operated.
Boumph
Reply | Report as offensive | Link
Mon 27 Aug 2007 12:42
04 TDCi Lack of power and hissing noise - Turbo ? - Screwloose
boumph

If there's no obvious signs - and they can be very hard to see; then maybe take it somewhere that can get it up on a lift and check from underneath.
Reply | Report as offensive | Link
Mon 27 Aug 2007 14:29
04 TDCi Lack of power and hissing noise - Turbo ? - boumph
Thankyou screwloose and Bikerider.
Is this a job for my extremely competent local mechanic or do I go to a main agent?
Reply | Report as offensive | Link
Mon 27 Aug 2007 14:33
04 TDCi Lack of power and hissing noise - Turbo ? - Screwloose

An "extremely competent local mechanic" sounds like the perfect choice.
Reply | Report as offensive | Link