6.2 hard start
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Cargo Master
Joined: Jul 2003
Posts: 3,357
Likes: 250
6.2 hard start
Are there any updates on the newer style fuel pumps that are suppose to fix the hard start issues with the '17+ 6.2 motors? We have two at work that are getting pretty bad, but the weird thing is they do it when cold also so maybe it's something else
Also, I read a couple years ago that some people were going to try and add a check valve inline to keep from removing the fuel pump. Any recent info on this option?
Just want to get my info straight before I go to the boss again.
Also, I read a couple years ago that some people were going to try and add a check valve inline to keep from removing the fuel pump. Any recent info on this option?
Just want to get my info straight before I go to the boss again.
Mountain Pass
Joined: Aug 2006
Posts: 193
Likes: 2
Same for me as well. My truck seems to not do it so often in the winter months, but when it is say 77 or warmer its a guarantee it will long start. I wish Ford would look into this.
Laughing Gas
Joined: May 2020
Posts: 951
Likes: 438
From: Adirondacks
An interesting restart thing began with my truck this winter. Cold engine crank time starts have always been fast and strong. Previous to this winter, any extended crank long start was only in hot summer weather after driving at least a half hour. This winter, my truck engine does a medium long extended crank start after washing my truck and sitting a while. Yesterday was typical: got home, 35 degrees outside, washed truck, truck sat three and a half hours, then medium long crank restart. It never did that until this winter. Everything else is perfect like usual.
Laughing Gas
Joined: May 2020
Posts: 951
Likes: 438
From: Adirondacks
An interesting restart thing began with my truck this winter. Cold engine crank time starts have always been fast and strong. Previous to this winter, any extended crank long start was only in hot summer weather after driving at least a half hour. This winter, my truck engine does a medium long extended crank start after washing my truck and sitting a while. Yesterday was typical: got home, 35 degrees outside, washed truck, truck sat three and a half hours, then medium long crank restart. It never did that until this winter. Everything else is perfect like usual.
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Mountain Pass
Joined: Dec 2019
Posts: 206
Likes: 12
From: Rathdrum, ID
Following, the check valve sounds like the best solution. I would like to hear feedback if anyone has done it.
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Cross-Country
Joined: Dec 2025
Posts: 95
Likes: 44
I update the PCM and do a dechoke per tsb 18-2188 and it helps with the long crank when its cold out. I live in the south so I've only had maybe 3 or 4 total that I've fixed..
Last edited by LEEDSnDeed; Feb 18, 2026 at 08:14 PM.
2nd Gear
Joined: Mar 2026
Posts: 2
Likes: 0
Pump 6.2
Just ordered an updated pump according to FORD and the brands they use for the replacement and contacting several dealerships on the brands and model numbers. Apparently Ford uses several different brands or manufacturers so i went with one of them, cost was WAYYYYY lower than dealerships. Gonna drop tank when it comes in…
Mountain Pass
Joined: Aug 2025
Posts: 121
Likes: 64
Just ordered an updated pump according to FORD and the brands they use for the replacement and contacting several dealerships on the brands and model numbers. Apparently Ford uses several different brands or manufacturers so i went with one of them, cost was WAYYYYY lower than dealerships. Gonna drop tank when it comes in…
Mountain Pass
Joined: Jun 2011
Posts: 202
Likes: 44
From: Extreme Northwest, Pa.
Are there any updates on the newer style fuel pumps that are suppose to fix the hard start issues with the '17+ 6.2 motors? We have two at work that are getting pretty bad, but the weird thing is they do it when cold also so maybe it's something else
Also, I read a couple years ago that some people were going to try and add a check valve inline to keep from removing the fuel pump. Any recent info on this option?
Just want to get my info straight before I go to the boss again.
Also, I read a couple years ago that some people were going to try and add a check valve inline to keep from removing the fuel pump. Any recent info on this option?
Just want to get my info straight before I go to the boss again.
Cross-Country
Joined: Dec 2025
Posts: 95
Likes: 44
By putting a check valve inline your putting a band-aid on the problem. Get a new in tank pump and change it out and that's done ! Then you need to relocate the tank vent breather to some place like the engine bay to help keep it out of dirty conditions. Splice a hose and extend it to the engine bay and then hook up your breather after cleaning it. All done.
1st Gear
Joined: May 2026
Posts: 1
Likes: 0
My 17 6.2 yesterday just out of the blue failed to start. 80 degrees, I had just drove two hrs,...One hr each way. shut off and start at ends of the road,
I pulled in the feed mill, ordered my stuff screwed around a bit, about... 30 min stop. went to start the truck and it would not start, it tried, sounded like it wanted to but couldn't get enough gas.. tried everything with gas pedal I could think of. no start! called for a ride. waited 10 min. hit the key it slow started but started up. no lights. idle was perfect?? seemed like it never happened. but now I don't trust it!
I pulled in the feed mill, ordered my stuff screwed around a bit, about... 30 min stop. went to start the truck and it would not start, it tried, sounded like it wanted to but couldn't get enough gas.. tried everything with gas pedal I could think of. no start! called for a ride. waited 10 min. hit the key it slow started but started up. no lights. idle was perfect?? seemed like it never happened. but now I don't trust it!