Im working on a 2001 bluebird tc2000. All of the sudden the drivers air seat wont build up air. It will release it but wont fill it back up. I checked the air bag under the seat no leaks or tears. No audible air leaks. Any ideas on what to check or what to do?
The most common thing I have seen in this case is the air line is being pinched when the seat is down. The supply line goes to the switch first then the to the airbag. If the supply line is pinched you could lower the seat but not raise. Foolow the lines from the fllor around the seat and make sure they arent pinched or kinked.
If it also has air brakes there is a valve that won't supply air to the "non essentials" until the pressure is above a certain threshold...might check its function.