Like the title says, Volvo engineers tried to show off and over-enginiered simple stuff. I can’t hate them enough for that.
Half electronic Half mechanical air dryer:
Bought this truck almost a year ago. It was nothing but a constant money pit. And for one reason only. I can’t get its air dryer and governor work properly.
1. Fixed all the air-leaks (hoses, transmission leak, fan clutch leak (very small) was fixed). You can leave the truck for a day and pressure is around 60-90 psi the next morning.
2. Replaced air compressor.
3. Replaced Wabco air dryer (the whole freaking assembly) 4 TIMES!!!
Symptoms:
It purges air sometimes in 2 mins, sometimes every 30 seconds. Sometimes (more often than not) when I leave it to idle, it stops purging and the pressure goes over 140 psi until Safety Valve kicks in.
Also, while driving on the highway, when I glide down a hill (when glide speed goes over cruise control), air compressor pumps like hell and governor doesn’t cut it until safety valve comes to rescue. When it is back to pulling purge valve starts working. (Electronically freaking controlled governor! Who the h€ll thought it was a good idea?)
Today it wants a new air dryer ($600) because the one on it currently had already been used for 15,000 miles. And I can’t find one in dealerships.
I really want to burn it to ground but I’m a poor guy.
Anyone had this experience?
What else should I look into?
Is there a way to switch it back to primitive yet working system (like with mechanical governor, etc)?
And yes, #### You Volvo!
