After about 5 mins of running the exhaust manifold glows red. I know this not normal. The Jeep runs pretty good with the exceptions of an intermittent high idle. Clogged Cat? Running rich/lean? Although if it ran rich/lean wouldn't that through a code?
Cat is not glowing red only manifold up to the section where it turns into one pipe. It's also intermittent. I started her up last night and she idled and ran fine. Im stumped and don't want to throw money at guesses. It feels like I have good pressure at the tail pipe when I start her.
If the o2 sensor were bad and not picking up the lean mixture, wouldn't I get a code for the o2 sensor?
I do have a CEL, It's for EVAP Leak Large detection. It also through a TPS code ( But I think thats from unplugging it to see if it had changed the idle quality.) No code for the O2 sensor or rich/lean air/fuel mixture. I drove her today and she's running fine. (Manifold looks to be normal temp, not glowing). You think the intermittent high idle has something to do with the manifold getting red hot?
THe high idle is due to your tps so change or try and adjust it, and it could fix your exhaust problem too.
Originally Posted by ancestralworm
i wave at dog walkers and pink vw bugs and michelle pfeiffer look-a-likes and folks dressed like harry potter and two person bikes and pissed off squirrels and butterflys and day lilies and jump ropers and hobos with shotguns but there is no way in hell i will wave at a liberty. that's just gay.
i would clean your iac mine got suck open and it turned really red and i was freaking out cuz i was running about 45 and the jeep just kept going like the cruise was on wehn i finally pulled over i was sittin at abou 1750 rpms and i got some carb cleaner and havent had a problem since. just clean it out really good