fuel problems
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Freshman User
Joined: May 2011
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fuel problems
i have a 1992 f250 with 7.3 it runs great the problem is when it gets warm let it sit 30 minutes it wont start and also it only gets 5-7 mpg (the low fuel millage only happens every now and then not all the time)
Posting Guru
Joined: Feb 2011
Posts: 2,216
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From: Princeton MN
Sounds like your ip might be taking a big ol' s@#t on you. How many miles are on the truck? Does the pump and injectors look original? i.e. gray paint? Are the return lines gray as well? I'm assuming when you say its a fuel problem that the truck cranks well, crack the shrader valve at the filter head and make sure you are getting fuel to the ip, but with the low mileage it sounds like the ip. Check out u-haul for a lower price then you will find everywhere else, 274 IIRC is what i payed for mine. I would strongly suggest doing injectors as well, they can be had from pensicola diesel for about 108bucks for a set
Lead Driver
Joined: Jan 2005
Posts: 7,782
Likes: 221
From: Huntington Indiana
If when hot. Turn of engine. Put cool water on IP. If you start right up then the IP went south. Replace both IP and injectors at the same time as they are probably worn badly also.
According to your profile you have 250K miles. As stated before if the injectors and pump are painted gray. You have original equipment. So replacement is warranted.
Also check the fuel pump on the block as it will be badly worn and not giving enough fuel volume to the IP.
According to your profile you have 250K miles. As stated before if the injectors and pump are painted gray. You have original equipment. So replacement is warranted.
Also check the fuel pump on the block as it will be badly worn and not giving enough fuel volume to the IP.
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Freshman User
Joined: May 2011
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The miles on the truck are 367500 and the ip is gray but the injectors look like there are 2 different ones also i was wondering why it wont idle below a quarter tank ive replaced the mechanacle pump
Posting Guru
Joined: Feb 2011
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From: Princeton MN
Sounds like the ip is way overdue for a change, Normal life is about 160,000mi on the high end, the injectors may be there also. The two different ones I'm going to venture to guess were found to be bad enough to affect the way the truck ran and were replaced. If it doesn't idle under a 1/4 tank the pickup tube in the tank may have cracked and its sucking air.
Senior User
Joined: Aug 2010
Posts: 399
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From: Central, Florida
Sounds like the ip is way overdue for a change, Normal life is about 160,000mi on the high end, the injectors may be there also. The two different ones I'm going to venture to guess were found to be bad enough to affect the way the truck ran and were replaced. If it doesn't idle under a 1/4 tank the pickup tube in the tank may have cracked and its sucking air.
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