mekanik
Senior Member
Last week we got a call from a local trucking company. They had an air problem with a 2016 Pete. The shop the normally use could not get them in for a while. They desperately needed the truck fixed. The shop they normally use troubleshot the problem as being caused by the air dryer and gave the driver a Bendix ADIS dryer. The dryer was cycling every few seconds. The shop foreman asked "Do you want us to troubleshoot it first?" Owner said "No the tech at the other shop did already". He said the door' is open drive it into the shop and we will get to it right away.
I drained the air and slid under it and replaced the dryer. Once done I ran the engine and cycled the compressor a few times and it worked as should. I released the park brake to back out of the shop and I could hear air blasting from the rear of the truck. A major air leak. A air line to one of the brake chambers had rubbed through in a suspension bolt. I replaced the line and sent him on his way.
I can't believe the driver did not know he had an air leak and I can't believe the "Tech" did not diagnose the leak.
I drained the air and slid under it and replaced the dryer. Once done I ran the engine and cycled the compressor a few times and it worked as should. I released the park brake to back out of the shop and I could hear air blasting from the rear of the truck. A major air leak. A air line to one of the brake chambers had rubbed through in a suspension bolt. I replaced the line and sent him on his way.
I can't believe the driver did not know he had an air leak and I can't believe the "Tech" did not diagnose the leak.