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Old March 22nd, 2017, 14:54
NeXJ NeXJ is offline
NAXJA Forum User
Join Date: Sep 2003
Location: Los Angeles
Posts: 336
Idle speed going through the ROOF on warming up : 97 XJ 4.0 HO

I have no idea what's happening - though I wonder if it's related to my cooling system having a blockage - been only using my vehicle for short local trips as a result. previously - throwing the hot air blower on has kept things to temp for trips over ten min... but suddenly now my revs have been climbing to 3000 plus at idle once i've been driving and engine running for five minutes or so... I'm going to take it in to have someone fix up my cooling system (not something i relish doing myself) but I'm wondering where this behavior might be coming from. Anyone want to take a stab in the dark?? I checked the TB cable etc - and no issues there. it's not moving - the rest position doesn't change...
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