sudden engine miss

[ls1alltheway]

i drove my baby about 100 or so miles with no problems. suddenly heard what sounded like an exhaust leak then it went away, a few moments later the ses light came on and she started running rough. had her scanned and they told me that she had a missfire on #5. fixed that and no change. please,please someone help!!!

[0rion]

How did you fix it? Is it still showing number 5 as the cylinder? Have you checked the plug boot and all obvious things like that? There are several things it may be. From simple to not so simple.

[ls1alltheway]

havn't yet, and i checked all the norm. plug wire ect. i even changed plugs and wires, but no help there. i also check the harness connection and it seemed to be fine. my only other option is to swap coils and see if the miss moves to another cylinder.

[0rion]

Also try using a long screwdriver as a stethescopic and listen to that injector and make sure it's firing. Is it making any sounds at all over there now like a broke valve spring or anything like that?

[ls1alltheway]

no strange noises other than the exhaust like sound. other than that it's been pretty smooth.