had oil change done about week later oil filter blew and lost all oil in drive. replace filter next day and it blew again immediately. oil housing removed and cleaned well. new oil filter in place but now oil pressure reads 100 but filter holding thus far worried will blow again. garage states unable to get replacement housing. any suggestions?
oil filter blows shows oil pressure at 100 on 2001 Pontiac Firebird
by Visitor in Decatur, IL on March 30, 2010
ANSWER by patrick mannion on March 30, 2010
Better quality oil filters advertise higher burst pressures but oil pressure in an engine once warmed to operating temperature shouldn't exceed 85psi for most engines. cold the pressure will be higher as the oil is thicker. The oil pressure reaches a specified pressure then the oil pressure relief valve opens and allow the oil to divert back to the oil pan. 60 psi is specified oil pressure at operating temperature for your engine at 1850 RPM.