View Single Post
  #11  
Old March 23rd, 2017, 20:37
ehall's Avatar
ehall ehall is offline
NAXJA Member
 
Join Date: Dec 2007
Location: Southern Maryland
Posts: 9,339
Re: Idle speed going through the ROOF on warming up : 97 XJ 4.0 HO

If its 3000 RPM I'd probably look for crack in the manifolds
__________________
.
my '91 beater rebuild
Reply With Quote