Boost dropped to zero while towing???
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Joined: Feb 2004
Posts: 15
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Boost dropped to zero while towing???
Last week I went up to Watkins Glen towing my open car trailer, car and bed full of spare wheels, tools, other stuff. Tow load is about 5000 pounds. Took RT15 up. I caravaned up with some friends. We were hauling 65-70 up one of the large hills past Williamsport. Truck was running fine, I looked down to see the boost gauge at 29-30lbs of boost. I was at about 3/4 throttle. All of a sudden the boost gauge dropped to zero, truck continued to pull, no smoke, I went ahead and backed off the throttle. Once we reached the top of the hill, boost came back on. I've searched looking for a thread with a similar issue but haven't found anything. Was this just a loose connection, or did the computer back something off?
I never saw this again, on the trip up or the trip home. My mpg was 15.2 for the round trip.
Thanks
Todd
I never saw this again, on the trip up or the trip home. My mpg was 15.2 for the round trip.
Thanks
Todd
Elder User
Joined: Apr 2004
Posts: 552
Likes: 2
From: Midland, TX
Hey Todd,
Did the truck sound any different? Also is that a pillar guage or dash gauge in the 05+? Did the truck get hot as well?
Might have been a guage malfunction if the truck still pulled fine.
Todd
Did the truck sound any different? Also is that a pillar guage or dash gauge in the 05+? Did the truck get hot as well?
Might have been a guage malfunction if the truck still pulled fine.
Todd
Senior User
Joined: Mar 2005
Posts: 205
Likes: 0
If you lost all boost you would defiantly know it. The turbo failed in our '03 6.0 while going up a steep hill pulling our 5th wheel, I knew instantly. Felt like motor completely shut down, the 6.0 is completely dependent on the turbo. Sounds like your gage just failed for a moment.
Elder User
Joined: Dec 2006
Posts: 594
Likes: 0
From: New Jersey
From your description, I have to agree with slorider. If you lost boost going up a hill the truck would have fell flat on its face. Sounds like a gauge issue. At this point I would just keep an eye on the gauge and the sounds of the engine to see if it happens again.
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Senior User
Joined: Jul 2007
Posts: 233
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From: central valley, CA
boost gauge dropped to zero
That has happened to me too. I was towing about 12,000 up a 6% grade and boost gauge would suddenly drop to zero. Did this a couple times but did not feel any changes in power, sound or smoke. Kept EGT running about 1100-1200 for about 2-3 min up the grade. Idiot temp gauage did not move much but fans was at full tilt.
Lose connection?
Lose connection?
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