99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
Am I losing it? Runs better on last half of fuel tank
On the last couple long trips I have done with my truck I have noticed something that seems so strange to me. The truck runs dramatically better on the last half of the fuel tank. Quieter, smoother, better milage. Am I crazy or is there something that could cause this?
probably because of the weight change not having to carry around all that fuel. that or your gauge could move at an uneven speed and go through the second half of the tank at a slower speed. mines definatly off.
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20 years old trying to build my first diesel machine...
2000 F250 red ext cab 7.3L PSD. 4x4 off road pkg. 6 speed manual. diy 6637 air intake w/ afe intake tube. 4" turbo back magnaflow straight pipe. 5" afe tip. DP Tuner F5 stock, 60t, 80e, 100p, 140a. 3 pos pillar pod autometer phantom pyro/boost gauges and DP control. extang trifecta tonneau. 34 in toyo open country m/t. bull bar with 2 6 in. KC daylighters.
Pray for our country.
1928 Ford Model A stake truck. 1931 Ford Model AA dually flat bed.
The fuel guage moving differently I can understand, but the quiter, smoother operation has really got me scratching my head. My passengers have noticed it too.
Haven't noticed it with the diesel, but my Toyota has always been like that since it was new. More so with the last 1/4 tank than just the last 1/2. I have no idea what it would be......it's not the weight issue of the extra fuel though. It does it even if the bed is loaded.
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2001 F-350 Crew Cab XLT PSD 4x4, Long Bed, 6-speed, 3.73, Manual Transfer, Power TTT Mirrors, 122k miles.
1989 Toyota 4x4 xtracab SR5 V6, Beat to heck with 200k+ miles and still running strong.
Perhaps the fuel gets warmed up by the 2nd half of the tank, and since the fuel is warmer, maybe that's what's helping it run quieter/better?
__________________ Some people dream of fame and wealth, others work for it.
Lynn Amick http://www.amickracing.com
'00 F250 SD 7.3PSD S/C, Hillbilly intake sys, CCV mod, 4 position chip, EBPV switch, 4"DP DPPI exh, HX hose, remote fuel drain handle, coolant filter, turbo timer. Cardboard fiber dash kit still in the works.
Lots of things on the "to-do" list
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