Possible fuel pump issue?
Thread Starter
|
Cross-Country
Joined: Dec 2019
Posts: 60
Likes: 20
Possible fuel pump issue?
21' f250 6.7 Diesel. Approx 21,300 miles. I can hear a humming sound in the cab when going slow through parking lots or sitting still. Sounds like a fuel pump whine. Got under the truck and it's not power steering or anywhere near the front. It's definitely coming from inside the fuel tank. I put my hand on the tank and it's also sounding like it's missing or sucking air off and on. The same sound as the fuel water separator on the frame makes when you drain it and then cycle the key on and off to fill it back up. Like an air/water mix in pipes sound. I always get fuel from good stations and use the ford PM 22 additive once or twice a month.
I'm gonna drain some fuel from the water separator and see if that changes anything, maybe got some air in the line? I don't think that's the issue though.
Thoughts....?
I'm gonna drain some fuel from the water separator and see if that changes anything, maybe got some air in the line? I don't think that's the issue though.
Thoughts....?
Thread Starter
|
Cross-Country
Joined: Dec 2019
Posts: 60
Likes: 20
Nothing seems to be affected, it drives and idles fine, no loss of power or acceleration issues. I'll check the TSB and see if that would be helpful. It's just an odd sound that hasn't been present until about a week ago.
I've got a trip coming up hauling an 8K trailer about 350 miles and just want to be sure nothing's wrong.
I've got a trip coming up hauling an 8K trailer about 350 miles and just want to be sure nothing's wrong.
Lead Driver
Joined: Nov 2005
Posts: 8,454
Likes: 4,952
Nothing seems to be affected, it drives and idles fine, no loss of power or acceleration issues. I'll check the TSB and see if that would be helpful. It's just an odd sound that hasn't been present until about a week ago.
I've got a trip coming up hauling an 8K trailer about 350 miles and just want to be sure nothing's wrong.
I've got a trip coming up hauling an 8K trailer about 350 miles and just want to be sure nothing's wrong.
And, the TSB doesn't say anything about any run failures with the fuel pump noise.
Thread
Thread Starter
Forum
Replies
Last Post
hollygreenman
6.7L Power Stroke Diesel
13
Apr 1, 2018 11:04 AM
97vanswap
1987 - 1996 F150 & Larger F-Series Trucks
7
Apr 28, 2017 02:54 PM
Greywolf
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
2
Sep 29, 2003 03:44 PM
