Thermostat housing
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Joined: Mar 2020
Posts: 850
Likes: 224
From: US
+++^
Yep, replacing JunkPlastic TStatHousing with Aluminum definitely good idea.
Basicly 2 Aluminum versions to choose from: 1PieceBody from SimonsAutoSportz\SAS, or 2PieceBody from all other Makers\Vendors.
Either has slight advantage\disadvantage over the other; either is definte improvement over OE\AfterMarket JunkPlastic version.
2010 V6~4.0L~SOHC needs version with a Single ClipMountTempSensor Hole & ForwardRouted 1.5"BarbTriFlangeOutletTopCover.
Consider replacing LeftFront OilPressurized TimingTensioner if that has not been replaced in last 8yrs\67kMiles,
while you've got TStatHousing off; they sit next to each other; easier\sensible to do both at same time.
Yep, replacing JunkPlastic TStatHousing with Aluminum definitely good idea.
Basicly 2 Aluminum versions to choose from: 1PieceBody from SimonsAutoSportz\SAS, or 2PieceBody from all other Makers\Vendors.
Either has slight advantage\disadvantage over the other; either is definte improvement over OE\AfterMarket JunkPlastic version.
2010 V6~4.0L~SOHC needs version with a Single ClipMountTempSensor Hole & ForwardRouted 1.5"BarbTriFlangeOutletTopCover.
Consider replacing LeftFront OilPressurized TimingTensioner if that has not been replaced in last 8yrs\67kMiles,
while you've got TStatHousing off; they sit next to each other; easier\sensible to do both at same time.
Member
Joined: Feb 2005
Posts: 1,273
Likes: 116
From: Costa Mesa, CA
I had an issue with the temperature sending unit when I switched to the aluminum thermostat housing. I don't remember all the details but it ended up being a problem with the connector. One of the wires broke and I had to replace the connector. I was told it should not make any deference how the two wires were connected but I tried to connect them the same way they were originally anyway. I don't know if I got it wrong or if it was wrong originally and the plastic housing allowed it to work because it is non-conductive.
After I replaced the connector I was having a new problem. The temperature gauge would go all the way to hot. After using a multi-meter to help diagnose the problem, I decided to switch the polarity of the wires to the connector. This solved the problem. I turns out if the sensor get grounded through the aluminum housing, the polarity of the wires going to the connector does make a difference.
Another issue I had was; the opening in the thermostat housing for the temperature sending unit was larger than the one in the plastic housing. I couldn't find the exact size O-ring to fit it, so I sanded down an over size O-ring on a lathe to make it fit. I am sure I could have eventually found the right size O-ring but didn't want to spend the time searching.
I think switching to an aluminum thermostat housing is a good idea, but is helps to know some of the issues you might have to deal with before starting.
After I replaced the connector I was having a new problem. The temperature gauge would go all the way to hot. After using a multi-meter to help diagnose the problem, I decided to switch the polarity of the wires to the connector. This solved the problem. I turns out if the sensor get grounded through the aluminum housing, the polarity of the wires going to the connector does make a difference.
Another issue I had was; the opening in the thermostat housing for the temperature sending unit was larger than the one in the plastic housing. I couldn't find the exact size O-ring to fit it, so I sanded down an over size O-ring on a lathe to make it fit. I am sure I could have eventually found the right size O-ring but didn't want to spend the time searching.
I think switching to an aluminum thermostat housing is a good idea, but is helps to know some of the issues you might have to deal with before starting.
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Member
Joined: Jun 2021
Posts: 28
Likes: 3
From: Sooke
I had an issue with the temperature sending unit when I switched to the aluminum thermostat housing. I don't remember all the details but it ended up being a problem with the connector. One of the wires broke and I had to replace the connector. I was told it should not make any deference how the two wires were connected but I tried to connect them the same way they were originally anyway. I don't know if I got it wrong or if it was wrong originally and the plastic housing allowed it to work because it is non-conductive.
After I replaced the connector I was having a new problem. The temperature gauge would go all the way to hot. After using a multi-meter to help diagnose the problem, I decided to switch the polarity of the wires to the connector. This solved the problem. I turns out if the sensor get grounded through the aluminum housing, the polarity of the wires going to the connector does make a difference.
Another issue I had was; the opening in the thermostat housing for the temperature sending unit was larger than the one in the plastic housing. I couldn't find the exact size O-ring to fit it, so I sanded down an over size O-ring on a lathe to make it fit. I am sure I could have eventually found the right size O-ring but didn't want to spend the time searching.
I think switching to an aluminum thermostat housing is a good idea, but is helps to know some of the issues you might have to deal with before starting.
After I replaced the connector I was having a new problem. The temperature gauge would go all the way to hot. After using a multi-meter to help diagnose the problem, I decided to switch the polarity of the wires to the connector. This solved the problem. I turns out if the sensor get grounded through the aluminum housing, the polarity of the wires going to the connector does make a difference.
Another issue I had was; the opening in the thermostat housing for the temperature sending unit was larger than the one in the plastic housing. I couldn't find the exact size O-ring to fit it, so I sanded down an over size O-ring on a lathe to make it fit. I am sure I could have eventually found the right size O-ring but didn't want to spend the time searching.
I think switching to an aluminum thermostat housing is a good idea, but is helps to know some of the issues you might have to deal with before starting.
That's why this site is so good. You may have saved me hours of frustration.
Thread Starter
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Member
Joined: Jun 2021
Posts: 28
Likes: 3
From: Sooke
Just to say:
I installed the aluminum thermostat housing on the ranger. No issues. Senor work also.
The plastic one I took out was crumpling to peace's. It was breaking when I tried to get the hoses off.
I installed the aluminum thermostat housing on the ranger. No issues. Senor work also.
The plastic one I took out was crumpling to peace's. It was breaking when I tried to get the hoses off.
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WalkThisWhey
4.0L OHV & SOHC V6 Tech
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Oct 6, 2015 10:59 AM
