03, 168k

I’ve been chasing this misfire for a few days now with no success. Today I got under the disco and noticed a leak right at the seam of the muffler. Could that cause the misfire I’ve been experiencing? It started after crawling over some rocks a couple of weekends ago. I hit the undercarriage pretty hard at one point. I started having the misfire on the way out of the trail.

 

Are you getting O2 codes with the misfire? If not, I doubt this would be the issue.

 

Here’s what I’m getting... Last weekend I changed wires and plugs. Getting same codes as before.

 

Swap the plugs on one and two, if misfire on one comes back check the wire

P1117 Radiator outlet temperature thermister low