While stopped at a light, I noticed that my LJ was hunting around for it's normal idle RPM. When I got home, I shut off the motor, restarted it a couple minutes later, and it found it's idle normally.
I checked the vacuum line that runs from the manifold into what I assume is the ECM (vacuum line runs from a port on the intake manifold, across the firewall, and dives into a fitting near the 4 coil packs), and that seemed like it was attached normally. I've always been suspicious of this vacuum line because it seems really easy to disconnect from the vacuum port, and it doesn't feel like it's on there very tight, but it otherwise doesn't look damaged or cracked.
Any thoughts on some low hanging fruit items I can check? This was the first time this behavior has occurred. There are no CEL's.
I checked the vacuum line that runs from the manifold into what I assume is the ECM (vacuum line runs from a port on the intake manifold, across the firewall, and dives into a fitting near the 4 coil packs), and that seemed like it was attached normally. I've always been suspicious of this vacuum line because it seems really easy to disconnect from the vacuum port, and it doesn't feel like it's on there very tight, but it otherwise doesn't look damaged or cracked.
Any thoughts on some low hanging fruit items I can check? This was the first time this behavior has occurred. There are no CEL's.
Last edited: