freio da carreta travando as rodas e valvula relé vazando quando pisa

TRAILER RELAY VALVE IS LEAKING. PRESS THE BRAKE AND THE TRAILER WHEELS GET STUCK. PRESS THE BRAKE AND IT TAKES A LONG TIME TO RELEASE THE TRUCK WHEELS. PRESS THE BRAKE AND THE AIR BALLOONS DRY QUICKLY. LINK:    • PISA NO FREIO E O BALAO DE AR SECA RAPIDO ...   A.P.U. VALVE FILTER DRYER AND THEIR PROBLEMS AND DEFECTS LINK.    • filtro secador ou a.p.u e seus problemas e...   HOW TO FURTHER IMPROVE TRUCK BRAKES LINK.    • COMO MELHORAS MAIS AINDA O FREIO DO CAMINH...   HOW THE ABS VALVE ON TRAILERS OR TRUCKS WORKS LINK.    • COMO FUCIONA A VALVULA ABS DA CARRETA OU D...   HOW TO ADJUST THE DRYER VALVE OR A.P.U. TO FURTHER INFLATING BALLOONS LINK.    • como regular a valvula secadora ou a.p.u p...   TRUCK ENGINE GENERATING BLACK SMOKE LINK.    • motor dos caminhoes gerando fumaça preta 2...   ENGINE GIVING AIR DOES NOT WORK LINK.    • MOTOR DANDO ENTRADA DE AR NOS CAMINHOES,MO...   WHO SEND MORE AIR TO THE TRAILER BRAKES LINM.    • quem manda mais ar para os freio da carreta