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Mend WABCO 75E15 Air Pressure Problem

AIR PRESSURE PROBLEM?

WE HAVE 2004 75E15 AIR PRESSURE WILL NOT GO ABOVE 6 BAR, NO LEAKS, NEW AIR DRIER FILTER,
HAPPENED AFTER STANDING FOR 2 DAYS IN SUB ZERO
TEMPERATURES,

PETER
February 2009
You could try going under the truck and on the bottom of the air tanks there is a small valve get some thin wire or a coat hanger (hook end) and pull it to the side, this will open the valve and you might find you have water in there this is a build up of condensation, this mite be why you are not getting up the air pressure. hope this helps.

james
February 2009

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