PO305 error code on 1999 Jeep Cherokee

Jeep has started to idle rough. OBDII code reader says PO305 (#5 cylinder misfire). Changed plug and wire, no help. Problem only at idle.

by in Hanover, PA on July 21, 2010
1 answer 1 comment
ANSWER by on July 21, 2010
check the injector and do a compression test. lots of problems with exhaust valve seats going bad. Roy
COMMENT by on July 21, 2010
Compression check done. O.K. How do you "check" the injector? What about the EGR ?

Related Content