Is Front Axle supposed to turn in 2WD?
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Junior Member
Joined: Jan 2007
Posts: 1
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From: Arizona
Is Front Axle supposed to turn in 2WD?
I fixed a vaccum leak in my 97 f150 that was causing my 4wheel drive not to work, now looks like my front axle is turning while in 2WD? Wasting tons of gas....Any ideas, I will check the lines again but not sure if there is something else i might miss.
Senior Member
Joined: Dec 2003
Posts: 6,550
Likes: 2
From: Mount Airy,MD
Originally Posted by L_Guero1
I fixed a vaccum leak in my 97 f150 that was causing my 4wheel drive not to work, now looks like my front axle is turning while in 2WD? Wasting tons of gas....Any ideas, I will check the lines again but not sure if there is something else i might miss.
Senior Member
Joined: Dec 2004
Posts: 5,004
Likes: 27
From: Dover AFB DE / Harrisburg PA
The '97-'03 CV half shafts spin all the time. When you lock in 4x4 the Center Axle Disconnect locks the two halves together.
Even with more traditional Dana 44 TTB and 60 solid axles that I leave locked from the first snow 'till spring, I notice only less than a 1mpg loss.
Adrianspeeder
Even with more traditional Dana 44 TTB and 60 solid axles that I leave locked from the first snow 'till spring, I notice only less than a 1mpg loss.
Adrianspeeder
Technical Article Contributor
Joined: Dec 1997
Posts: 9,417
Likes: 11
From: Windsor,Ontario,Canada
When you fixed the leak did you reverse the vacuum lines to the axle disconnect motor? If you did the axle is engaged in 4x2, thus turning the front drive shaft.
JMC
JMC