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Old 02-03-2011
dazza96  dazza96 is offline
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i am with carves on this one i run a 160 thermostate and all good
cheers dazza
(also to acording to the book 160 thermostate is fine or they would not make it and sell it in aus)
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Old 02-03-2011
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I run a cooler thermostat and the truck seems to still sit on the exactly the same temps as it did with the standard thermo just takes a little longer to get there. Cant say I have seen any detrimental effects.
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Old 02-03-2011
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Brilliant thanks, I look forward to the next installment.
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Old 02-03-2011
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Got yer stroker in yet!!
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Old 02-03-2011
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Excellent write up there Rodge, look forward ot the next installments....
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Old 02-03-2011
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Interestingly in the 94-96 parts manual (my model) it lists only 2 thermostats, an unrated unit and a 180* (severe use) unit. Another interesting thing is my '95 model had a radiator in it specified for a '94 model and I thought it was alloy/plastic when in fact when I removed it recently I found that it was actually copper/plastic and had been there at least 8yrs as that is how long I have owned it and only once did I have an issue of overheating!!!!!
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  #14  
Old 02-03-2011
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I drove my xj into the workshop at lunch & hooked her up to the jeep Techconnec just to run her numbers & check for any ecm pcm updates & low & behold what popped up HIGH AMBIENT OR HOT SOAK TEMPERATURES 2000 - 2001 XJ its a software update that lowers the temp threshold used to determine when the engine fans are turned on , Cooling fans will cycle more often .

Service Bulletin 18-031-03 18-039-03

Ran the PCM update & my thermos used to come on at 104 c to 105 c now they come on at about 98c or by the temp gage a needle width before 100c & thats where it stays , im pretty happy with that , but i have also just fully replaced all the cooling system & removed the AC gear so i have greater air flow through the front so it may vary a little from Jeep TO Jeep

PCM update & re-program is for 4.0 ltr Auto's only


Top work there Rodger , cant wait to read the followups & sorry for the little Hijack but i thinkk it may also help the update xjer's
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