I guess it's a good thing it isn't the grand Cherokee.
I don't have a hot or a cold spec other than this.
I found this on mitchell, and wanted to throw ot out there.:
Rough idle in high ambient after hot soak. Clears in 30-60 SEC
Exhaust heat causing fuel in #3 and #4 injector to vaporize.
Install heat sleeve, PN56028371AA, on injectors
Long shot, but.....
Sunday, August 24th, 2008 AT 8:55 PM