REVERSE ACCELERATION?????
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Mountain Pass
Joined: Nov 2006
Posts: 163
Likes: 9
From: marrero, la.
REVERSE ACCELERATION?????
Started truck, foot on the brake, put in reverse, as I was letting off brake and starting to move in reverse, it reved-up an accelerated. Its done it twice in two days now. Whats the deal???
FTE Leadership Emeritus
Joined: Aug 2007
Posts: 42,085
Likes: 6
From: Lakewood, Ca.
That's not a lot of info to go on, but on '03/early '04's failed ICP sensors are fairly common and can cause a surge like that. There's a good write up on it in the tech folder sticky at the top of the page.
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Mountain Pass
Joined: Nov 2006
Posts: 163
Likes: 9
From: marrero, la.
thanks, i just bought a icp that im changing this weekend due to oil leak suspect. would this also cause some irradic turbo opening/closing-at least thats what it sounds like at the exhaust when at start-up?
Hotshot
Joined: Dec 2003
Posts: 15,369
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From: Stuttgart, Ar
If you're familiar with the workings of a VGT turbo, sweep would mean that the turbo vanes get moved through their operating range to prevent carbon buildup from freezing them in one position. Sweep could also be read cycle. I've never heard that the EGR valve went through the same cycling sequence though.
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sprad1970
1968-Present E-Series Van/Cutaway/Chassis
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Feb 21, 2017 03:07 PM
