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04 wj still overheating

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Old 01-14-2014, 05:08 AM
  #16  
Old fart with a wrench
 
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Join Date: Nov 2010
Location: Manlius, east of Syracuse, NY
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Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
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Actually, it's 50 gallons, but I plan on switching over when the current one ****s the bed. It's not costing me much because it's natural gas.

My brother has a tankless heater and he has problems with getting the water hot enough for a nice hot shower. Of course he's one of those guys who took the flow regulator out of the shower head. His is also electric and I think that's his problem.

We put the 50 gallon heater when my son was born. My wife decided she wanted to use cloth diapers. That plan didn't last long!

Speaking of gas heaters, I remember a VW Beetle I owned with a gasoline heater. That thing would drive you right out of the car! Gas mileage suffered, though.

So. What are we going to do about this guy's 4.0? It seems to me it's got to be the radiator. Would the wrong water pump cause it to overheat this badly? As in, wrong direction? To clarify, the pump for the serpentine belt runs in the opposite direction of the one for the v-belt. It could be they got switched in the boxes. The problem is, I can't tell which is which except by looking at them side by side.

Last edited by dave1123; 01-14-2014 at 05:30 AM.
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