Flatspot-fuel starvation

Gunmetalgrey · Apr 27th, 2013, 19:14

Does anyone know what could be the problem here? On 2 recent long journeys my 57 reg 1.6 diesel V50 has developed this very disconcerting problem. When trying to accelerate on an incline(to overtake a slower vehicle) and latterly when just driving up a hill,the car has started to loose significant power,as if being held back by an unseen force/dragging a jolly heavy load. This seems to get significantly worse as the journey progressed. Allthough I have always found yhe engine slow to respond to the throttle,I always put this down to yje size of the engine. However,this is a new problem,which is really rather scary. The car has driven just over 60.000 miles,is well cared for and much loved! If anyone has come across this,I would appreciate hearing how you solved this problem! Thank you!

Clan · Apr 27th, 2013, 20:16

the first thing to do is change the fuel filter ... if it runs ok at low power but not at over say half power.

Gunmetalgrey · Apr 27th, 2013, 20:53

Thank you very much,Clan,for your speedy reply. I will have a look at that and post the results!

Clan · Apr 27th, 2013, 21:44

Quote:

Originally Posted by Gunmetalgrey

Thank you very much,Clan,for your speedy reply. I will have a look at that and post the results!

The filter has to be eliminated first and it has done about 24000 miles with another 12000 to go before it is changed . One bad batch of fuel can block it . It WAS changed at the 36500 mile service wasnt it ?
You will need a hand bleeding tool to bleed it after changing the filter or you will never get it going again .

DieselDoNicely · Apr 28th, 2013, 22:42

Quote:

Originally Posted by Clan

The filter has to be eliminated first and it has done about 24000 miles with another 12000 to go before it is changed . One bad batch of fuel can block it . It WAS changed at the 36500 mile service wasnt it ?
You will need a hand bleeding tool to bleed it after changing the filter or you will never get it going again .

Does this engine self bleed, even my 850 Tdi does that.

DDN

Gunmetalgrey · May 4th, 2013, 16:54

After reading your advice,I took the car to an independent garage who assessed the situation,found that the hoses leading to the DPF had melted and replaced these. They cleaned out the nossles and had a good look at the DPF,did to that what was needed and put my car back on the road within 36hours. With some driving advice speciffic ro a diesel engine(stop being so "gentle") I left a happy customer without the astronomical bill I was expecting. Thank you for you quick response,it was really most kind and put my mind at rest.

Apr 27th, 2013, 19:14	#1
Gunmetalgrey New Member Last Online: Jul 27th, 2013 16:18 Join Date: Sep 2012 Location: Washington	Flatspot-fuel starvation Does anyone know what could be the problem here? On 2 recent long journeys my 57 reg 1.6 diesel V50 has developed this very disconcerting problem. When trying to accelerate on an incline(to overtake a slower vehicle) and latterly when just driving up a hill,the car has started to loose significant power,as if being held back by an unseen force/dragging a jolly heavy load. This seems to get significantly worse as the journey progressed. Allthough I have always found yhe engine slow to respond to the throttle,I always put this down to yje size of the engine. However,this is a new problem,which is really rather scary. The car has driven just over 60.000 miles,is well cared for and much loved! If anyone has come across this,I would appreciate hearing how you solved this problem! Thank you!

Apr 27th, 2013, 20:16	#2
Clan Experienced Member Last Online: Yesterday 16:31 Join Date: Jun 2007 Location: L/H side	the first thing to do is change the fuel filter ... if it runs ok at low power but not at over say half power. __________________ My comments are only based on my opinions and vast experience .

Apr 27th, 2013, 20:53	#3
Gunmetalgrey New Member Last Online: Jul 27th, 2013 16:18 Join Date: Sep 2012 Location: Washington	Flat spot-fuel starvation Thank you very much,Clan,for your speedy reply. I will have a look at that and post the results!

May 4th, 2013, 16:54	#6
Gunmetalgrey New Member Last Online: Jul 27th, 2013 16:18 Join Date: Sep 2012 Location: Washington	Flatspot-fuelstarvation After reading your advice,I took the car to an independent garage who assessed the situation,found that the hoses leading to the DPF had melted and replaced these. They cleaned out the nossles and had a good look at the DPF,did to that what was needed and put my car back on the road within 36hours. With some driving advice speciffic ro a diesel engine(stop being so "gentle") I left a happy customer without the astronomical bill I was expecting. Thank you for you quick response,it was really most kind and put my mind at rest.

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