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Old 02-15-2011, 06:16 PM   #12 (permalink)
comptiger5000
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Join Date: Feb 2010
Location: CT, USA
Posts: 544

RaceJeep - '98 Jeep Grand Cherokee (ZJ) 5.9 Limited
90 day: 13.62 mpg (US)
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They're both tranny coolers. The lines run Tranny -> Rad cooler -> Aux cooler (the one up front) -> Tranny

EDIT: Overdrive and torque converter lockup are locked out by the computer when the tranny fluid is below 50* F. That's normal. As far as the t-stat, it can be changed without pulling that damn accessory bracket. It's a little tricky, and a bit messy, but I did change mine a few weeks ago and didn't pull the bracket. The bracket is an absolute PITA though, as I had it off twice over the summer (once to do the plenum gasket, then the water pump went 3 days later )
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Call me crazy, but I actually try for mpg with this Jeep:



Typical driving: Back in Rochester for school, driving is 60 - 70% city
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