Boost drops off while towing
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Joined: Feb 2014
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Boost drops off while towing
2006 F250 SUPER DUTY 6.0. STUDDED, LOTS OF UPGRADES. SCT PROGRAMNER
WHEN TOWING MY FIFTH WHEEL CAMPER, MY BOOST USUALLY RUNS ABOUT 20, AND VARIES WITH TERRAIN TO MAINTAIN TORQUE/ SPEED AS EXPECTED.
. LATELY WHILE TOWING MY 5TH WHEEL , WHEN THE TRUCK MAKES ITS FINAL SHIFT ( INTO OVERDRIVE I GUESS) BOOST DROPS TO NEARLY NOTHING...EXHAUST TEMPS START TO RISE , . BECAUSE IM HAVING TO GIVE IT MORE FUEL TO MAINTAIN SPEED, AND IT MAKES A LOW
" DRONING" NOISE. FINALLY I STAND ON IT TO DOWNSHIFT AND GET THE RPMS UP TO REDUCE THE EXHAUST TEMP. SOMETIMES IT WORKS NORMAL, SOMETIMES IT DOESENT. ANY IDEAS GUYS ?
WHEN TOWING MY FIFTH WHEEL CAMPER, MY BOOST USUALLY RUNS ABOUT 20, AND VARIES WITH TERRAIN TO MAINTAIN TORQUE/ SPEED AS EXPECTED.
. LATELY WHILE TOWING MY 5TH WHEEL , WHEN THE TRUCK MAKES ITS FINAL SHIFT ( INTO OVERDRIVE I GUESS) BOOST DROPS TO NEARLY NOTHING...EXHAUST TEMPS START TO RISE , . BECAUSE IM HAVING TO GIVE IT MORE FUEL TO MAINTAIN SPEED, AND IT MAKES A LOW
" DRONING" NOISE. FINALLY I STAND ON IT TO DOWNSHIFT AND GET THE RPMS UP TO REDUCE THE EXHAUST TEMP. SOMETIMES IT WORKS NORMAL, SOMETIMES IT DOESENT. ANY IDEAS GUYS ?
Token Redneck
Joined: Jun 2007
Posts: 9,337
Likes: 346
From: Breckenridge, TX
What does VGT% get commanded to while it's doing this? Unison ring is a pretty common failure.
But since you have a tuner, the first step is to flash is to stock and verify the concern.
But since you have a tuner, the first step is to flash is to stock and verify the concern.
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ShawnQ
Excursion - King of SUVs
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Dec 31, 2018 10:31 PM
