Misfire #4 - running out of ideas 02Dak 3.9L
Legend
Joined: Feb 2005
Posts: 8,058
Likes: 184
From: Fort Worth, TX
Yes, could well be the plenum leaking.
It also may not hurt to pull the valvecovers and do a quick visual inspection. Yes it's a small PITA and no, the pushrod rockers don't just fall off like the OHC rockers do. But who knows what you may/may not find in there.
It also may not hurt to pull the valvecovers and do a quick visual inspection. Yes it's a small PITA and no, the pushrod rockers don't just fall off like the OHC rockers do. But who knows what you may/may not find in there.