CRD 3.0 to high fuel consumption. Why ? - JeepForum.com
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Unread 12-30-2014, 01:23 PM   #1
pingwinLegnica
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CRD 3.0 to high fuel consumption. Why ?

Hi. I'v got Commander 3.0 crd (diesel, MB motor) 2006. I've change swiryl motor (it was burn, fuel drain on it and one day i've got a small fire ). Change also new filters etc. After them from time to time i've got error : P0403 . We cleaned EGR but not help. After restart car error goes off. When i drive slowly in traffic error is back. When go normal or fast it's not happend.

It's not the biger my problem. The worst is the car takes about 30 % more fuel (diesel) then before .

now consumption is :
highway at 60-65 mph : 19 mpg (us)
city but not in traffic (go slowly, normal) : 14-11 mpg (us)

Any help ?

(sorry for my english )

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Unread 12-30-2014, 01:32 PM   #2
Zlartibartfast
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I'm thinking fuel leak. I had a leaking hose leading into the fuel filter - cut into my mileage badly, and you could smell raw fuel when you came to a stop.

How did fuel leal into your swirl motor? If that's the point when your mileage went down, then the problem may still exist
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Unread 12-30-2014, 04:20 PM   #3
pingwinLegnica
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I've change hose from fuel filter. They was damage and fuel goes down to swiryl motor
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Unread 12-30-2014, 04:24 PM   #4
pingwinLegnica
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Now fuel doesn't leak, on board computer i see the same consumption as real
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Unread 12-30-2014, 08:58 PM   #5
Drudgery1971
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It may be completely unrelated but please check your turbo intake pipe and it's NOT an eye ball (visual) check you need to pull it off and with it the EGR tube connected to it and see what you see. I didn't think mine was bad but once I pulled it off realized right where it connects to the turbo intake was REALLY brittle and cracked and a chunk fell off - every other inch/mm of the tube was fine. AT the same time you can check your seals (orange seal is bad/should be black in color) and connectors. I have had my swirl motor fail as well but just used a resistor to take it offline and it has run since. I do want to say though 19 isn't that horrible - it's odd but not alarming depending on fuel (winter) wind, etc. Good luck and hopefully something shows up. My US based CRD is down right now waiting for a MAF sensor on backorder so I can understand your pain.
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Unread 12-30-2014, 09:07 PM   #6
Drudgery1971
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If you had a small fire in the engine bay - you may want to check all the electrical wires nearby because it doesn't take much to cook the plastic off.
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Unread 12-31-2014, 03:25 AM   #7
pingwinLegnica
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Quote:
Originally Posted by Drudgery1971 View Post
If you had a small fire in the engine bay - you may want to check all the electrical wires nearby because it doesn't take much to cook the plastic off.
i've changed them all.
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