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1993 winnebago overheating Lloyd 7-24-17  
I have a 1993 452 chevy p30 motorhome. I have trouble shot it down to the thermostat and bad electric fan sensor in the block that was not turning on the electric fan motors. I found the thermostat to be a 180 and it should be 190, the sensor for the fan is a mystery. My question is what is the temperature rating combination I should have in this to make it right with the world, what thermostat rating with what sensor rating? Your help would be greatly appreciated.
Re: 1993 winnebago overheating Bubba The Bus Tech 7-25-17  
1st it is 100% acceptable to run a 180 t stat

2nd My info says your 454 will have a fan clutch, not electrically controlled.

If you have aftermarket electric fans or my info is wrong the 180 T-stat would work well with a 195 or 200 degree fan stat. The 195 will require a 205 to 215 fan stat setting.

Good Luck
Re: 1993 winnebago overheating lloyd 7-25-17  
Thanks, the electric fans could have been installed before I bought it. This unit does have a fan clutch on top of electric fans. I replaced the clutch and realized it was only half the problem. The fan stat located in the block wasn't turning on the fan and it would over heat, so my question is. Are the fan stats in the block variable? I haven't seen that but I will read further into the stat info, for the fan stat settings, must be a internal assembly thing?
Re: 1993 winnebago overheating Bubba The Bus Tech 7-26-17  
There are in head or in water outlet preset fan T-Stats. like what is installed now in your unit. They work extremely well in many Many vehicles world wide. Summit racing shows many choices for basic preset sensors from silly low temperatures to more normal levels.

There are also kits to give you adjust-ability. Stay away from these if you can avoid it, there is no advantage to being able to change the fan cut in temp by 1 degree.

The only kink is how is your system wired? These switches are only designed to trigger a relay. Any more draw than that will kill it almost instantaneously.

Good Luck
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