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Old 11-01-14, 08:52 PM   #1
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Default 90hp HDI Estate 53 plate poor running + fan runs at before starting

406 estate problems help needed.

Turn ignition and fan starts up, shut down even cold fan will run for 1 minute - why?

Poor starting and low power particularly when pulling away in 1st gear.

Changed glow plugs and fuel filter / air filter - its a Siemens system - 3rd cylinder glow plug was wet so I guess injector is leaking - not enough to contaminate the oil - but running with load is lumpy.

My thoughts;

fan is on because relay has current - is there a junction that could be wet?

injectors (car is 160k miles) are worn and leak and need overhaul? or a sensor has failed and ECU is over-fueling?

Not really dome much diesel work so all help very welcomed.

cheers

Nick
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Old 12-01-14, 08:39 AM   #2
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Quote:
Originally Posted by Nicolasticit View Post
406 estate problems help needed.

Turn ignition and fan starts up, shut down even cold fan will run for 1 minute - why?

Poor starting and low power particularly when pulling away in 1st gear.

Changed glow plugs and fuel filter / air filter - its a Siemens system - 3rd cylinder glow plug was wet so I guess injector is leaking - not enough to contaminate the oil - but running with load is lumpy.

My thoughts;

fan is on because relay has current - is there a junction that could be wet?

injectors (car is 160k miles) are worn and leak and need overhaul? or a sensor has failed and ECU is over-fueling?

Not really dome much diesel work so all help very welcomed.

cheers

Nick
your best bet is get it on live stream data to have a look at the measurements on everything but could possibly be related to common rail pressure sensor or wiring, fuel pump, fuel line, injectors and lots more that it could be
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Old 15-01-14, 08:47 PM   #3
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Default Diagnostics

thanks I just brought an OBD-II compliant tester and will run it up and see whats what.
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Old 16-01-14, 09:08 AM   #4
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On mine is was dirty contacts on the fan relay. Cleaned them all up and it was fine.
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