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If they're really vacuum lines, then they're probably for the differential locks.
But they may also be pressure relief lines for the axles.
The pressure in an sealed cavity(like an axle) will change with temperature, which can cause oil to be pushed out, or water to be drawn in. To avoid that, they may be fitted with pressure relief lines/valves.
What else can I help you with?
1992 dodge Dakota front axle does not engage when in four wheel drive?
Odds are the diaphragm is shot, in the central axle disconnect (CAD). You need to check if you have vacuum at the front axle, and if the vacuum switches from side to side, when you engage four wheel drive. If it does, your CAD is bad. If not, trace your vacuum lines to find the leak.
On your '95 Dodge Ram 1500 the front wheels will not turn in four wheel drive why?
THE FOUR WHEEL DRIVE IN YOU TRUCK IS ENGAGED/DISENGAGED BY VACUUM LINES,START ON THE FRONT AXLE.THERE IS A BOX THAT HAS A LEVER INSDE THAT LOCKS THE FRONT END IN AND OUT.YOU WILL SEE THE VACUUM LINES COMING OUT OF IT,JUST TRACE THESE LINES BACK TO THE TOP OF THE TRANNY,CHECKING THAT ALL SPLICES AND CONNECTIONS ARE GOOD AND THE LINE HAS NO HOLES.I HAD THIS PROBLEM WITH MY DODGE AND FOUND A HOLE RUBBED IN ONE VACUUM LINE WHERE IT GOES ACROSS THE CROSS MEMBER UNDER TRANNY. YOU CAN CHECK FOUR WHEEL DRIVE BY TAKING OFF VACUUM LINE ON FRONT END AND BLOW AIR IN THE LINE COMING OUT OF THAT BOX WITH AN AIR HOSE(20-30 PSI) IF FOUR WHEEL DRIVE ENGAGES THEN YOU HAVE A LEAK OR SOMETHING IN YOUR VACUUM LINES. GOOD LUCK, ROGER PATTON
Where is vacuum lines for 2000 Kia sportage four wheel drive?
vacume lines to 4weel drive unit are located on left sie fender under the hood right side if facing motor
Does anyone have a vacuum diagram for the four wheeldrive of a 1991 Jeep Cherokee 4X4?
A vacuum diagram for the four wheel drive of a 1991 Jeep Cherokee can be found in any Chilton's manual for that year of vehicle. The vacuum system allows the vehicle to switch from two wheel drive to four wheel drive on demand.?æ
Connecting the vacuum line to allow the four wheel drive to kick in on a 1988 S15?
At one point while offroad I had the vaccuum lines for the four wheel drive fail. If you go to the intake manifold, there should be a few ports that are blocked off. With the vehicle running unblock and check for vacuum. If you have vacuum, you can connect an extra bit of vacuum line directly from the port to the actuator that engages the front right axle shaft. This effectively bypasses the vacuum switch on the transfer case.
Where is the vacuum switch located on a 1998 dodge ram four wheel drive?
It is on the top of the transfer case.
Is the 2001 dodge Dakota rear wheel drive?
Rear wheel drive or four wheel drive.
Why won't the four wheel drive work in a 2003 Chevy s10 pickup truck?
over time the vacuum lines can get clogged with gunk and not allow the actuators to engage the trans axle, so replace all the vacuum lines and if it still doesn't work its probably a bad actuator or the motor on top of the transmission.
Can you convert an all wheel drive to a two wheel drive?
No. A "all wheel drive" is all the time four wheel drive. A 4x4 or 4-wheel drive can be set to drive in two wheel drive or four wheel drive.
Is the 2014 Honda Ridgeline front wheel drive rear wheel drive or four wheel drive?
The 2014 Honda Ridgeline has four wheel drive.
Is the 2011 Volkswagen Touareg front wheel drive rear wheel drive or four wheel drive?
The 2011 Volkswagen Touareg has four wheel drive.
Is the 2002 Jeep Wrangler front wheel drive rear wheel drive or four wheel drive?
The 2002 Jeep Wrangler has four wheel drive.
