low fuel pressure
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low fuel pressure
My 2015 has been at the dealer for 2 weeks with a low fuel pressure problem. they first thought it was water in the fuel filters, so the replaced both filters. Drove it for about 10 miles and the same thing happened, could only go about 4 mph, had it towed back to the dealer they replaced the fuel pump in the tank, and this still hasn't. fixed the problem. any ides I understand there is a high pressure pump also could this be the problem
Thank for any help
Thank for any help
FTE Legend
Joined: Mar 2017
Posts: 31,969
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From: Western NY
My 2015 has been at the dealer for 2 weeks with a low fuel pressure problem. they first thought it was water in the fuel filters, so the replaced both filters. Drove it for about 10 miles and the same thing happened, could only go about 4 mph, had it towed back to the dealer they replaced the fuel pump in the tank, and this still hasn't. fixed the problem. any ides I understand there is a high pressure pump also could this be the problem
Thank for any help
Thank for any help
If so, sure could be the HPFP (high pressure fuel pump) under the hood. How many miles? Any codes? You get a bad batch of fuel recently?
Hotshot
Joined: Jul 2013
Posts: 14,302
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the dealership has tools to measure expected vs actual lift pump pressure and expected vs actual high pressure at the engine bay fuel pump.
if you want to dive into this..you can use forscan to get the data.
there have been cases of bad pressure sensors so its not always a pump problem. there have also been bad connection problems.
if you want to dive into this..you can use forscan to get the data.
there have been cases of bad pressure sensors so its not always a pump problem. there have also been bad connection problems.
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So they replaced the DFCM (diesel fuel conditioning module; aka primary pump/fuel filter/water separator) on the driver's side frame then?
If so, sure could be the HPFP (high pressure fuel pump) under the hood. How many miles? Any codes? You get a bad batch of fuel recently?
If so, sure could be the HPFP (high pressure fuel pump) under the hood. How many miles? Any codes? You get a bad batch of fuel recently?
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