faulty vss?
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Cross-Country
Joined: Apr 2004
Posts: 69
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faulty vss?
Has anybody ever purchased a faulty vss? The dealer diagnosed and replaced mine but it still seems like it is not right. The E4OD wants to shift way too soon, especially out of first. Could the new vss be bad or is there something mimicing the problem? They reflashed the computer and it did not help. thanks.
kb
kb
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Cross-Country
Joined: Apr 2004
Posts: 69
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Originally Posted by 1997F-350
it could be the new shifting parameters of the new pcm code that you are not used to.
I had thought about that. However, with a 10,000 pound trailer behind it, it is shifting way too early. It seems to do only do it when the truck is warm. I had even wondered if the oil in the rear was getting hot and altering the signal. Any more ideas would be greatly appreciated. It is not throwing any codes and my dealership mechanic probably thinks I am imagining it all. thanks
Elder User
Joined: Mar 2004
Posts: 509
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From: Pasco, WA
The signal from the VSS won't be altered by heat; too much heat would make it pulse on & off or shut it down completely as the clearance between to VSS and exciter ring grew. Any change would be immediately visible on the speedometer.
Senior User
Joined: Oct 2005
Posts: 136
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From: Oregon
My truck started shifting too soon and it would shift in/out of OD at random times. Turned out my programmer didn't return the full stock code when I took it out, so I'm waiting on a new pcm from dp-tuner.
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DJdemon6696
1987 - 1996 F150 & Larger F-Series Trucks
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Aug 1, 2007 07:56 PM
