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1995 Ford E-350 7.3 Diesel Bogging Problem

14 messages,  Last post on May 27, 2012 at 1:13 PM

You are in the Diesels Forum.

What is this discussion about? Ford E-350, Diesel, Van

Messages Page 3 of 3

#13 of 14 99 7.3L Diesel Bogging Down - Fuel System? by mmj48

Nov 28, 2011 (1:16 am)

I have a 99 7.3L Diesel with about 284K miles. We're original owners and it has been well maintained. We discovered a fuel leak and thought it was a leaking weld.....it wasn't. When the tank was pulled we found the rubber hoses/washers disinigrating where it goes from where you put in the fuel to the tank, at the vent, and a couple of other places. Those were all replaced. Since then the vehicle has been bogging down. The first 200 miles after the repair everything was fine. Then it starting dying every 5-10 min. We filled up the tank (it was down to 1/4 full) and added fuel injector cleaner. It ran for 15-20 minutes before dying. After another 150 miles of this, we replaced the fuel filter (earlier than usual-we've replaced it at 100K and 200K). It was falling apart...from what appears to be pressure. The car now runs for 30-45 min on a flat highway. But, when we go up a hill it really boggs down and we need to pray it makes it. The funny part is that after it sits for 2-5 minutes it starts right up and acts like nothing was wrong. I don't think it's the sensor since we had it replaced about 25K miles ago and the car restarts too easily...it's not like a loss of power but rather like it is starving. Could there be sediment in the tank that is causing this? Is there a way to check this without removing the tank AGAIN? What else could be the problem? Could a kinked hose cause this and is it possible to kink a hose when one re-installs a diesel fuel tank? Could a blocked-off vent cause this? (They blocked the vent (I think temporarily) to test for a fuel leak.) Oxygen sensors? Fuel pump? Injectors? (It's not missing except when it is acting like it's starving for fuel.) Are there any sending units or is there a "sediment" tank? HELP! We have 7 chidlren and need the vehicle to last another 8 years at least, affordably.

#14 of 14 1995 F450 fuel starving by papajack

May 27, 2012 (1:13 pm)

Anybody out there know a thing or 2 about 7.3 diesels and the fuel systems?

Messages Page 3 of 3

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