89’ Pioneer MJ Barn Find

[Salvagedcircuit]

Hahaha. We all end up with new trucks eventually

Nice work! My closed loop system seems to still be working, but I'm keeping a spare heater control valve in the passenger glove box for the inevitable kerflooey.

[oleskool]

On 3/3/2024 at 10:59 PM, Salvagedcircuit said:

Hahaha. We all end up with new trucks eventually

Nice work! My closed loop system seems to still be working, but I'm keeping a spare heater control valve in the passenger glove box for the inevitable kerflooey.

That’s my plan 😂 Brand New MJ 😊 

[oleskool]

Well got out of the truck last night but when I shut the door the brake lights came on 😂. Here’s the culprit….. still a pain in the @$$ to replace. I don’t bend like that 😢 

[oleskool]

Haven’t posted much with life going on. Put the ole girl to work with 2k lbs or top soil for the yard 😊 

 

 

[oleskool]

Well the ole girl has smelled like coolant for about 2 months but I could never track down the leak. Finally found it today. The metal T coming from the upper heater core hose / reservoir is almost rusted through. Now to find a replacement. 
 

 

[pizzaman09]

On 10/3/2024 at 10:09 AM, oleskool said:

Haven’t posted much with life going on. Put the ole girl to work with 2k lbs or top soil for the yard 😊 

 

 

Putting the long bed to work I see.  Very nice.  I love seeing Comanches used as trucks.

 

13 hours ago, oleskool said:

Well the ole girl has smelled like coolant for about 2 months but I could never track down the leak. Finally found it today. The metal T coming from the upper heater core hose / reservoir is almost rusted through. Now to find a replacement. 
 

 

Check also the little vacuum actuated valve right behind that, it is plastic and gets brittle with age.  I actually watched mine explode when investigating cooling issues.

[Montana Offroad]

On 10/3/2024 at 8:09 AM, oleskool said:

Haven’t posted much with life going on. Put the ole girl to work with 2k lbs or top soil for the yard 😊 

 

 

Can’t wait to get my turbines looking that nice!

[oleskool]

On 2/11/2025 at 9:42 PM, Montana Offroad said:

Can’t wait to get my turbines looking that nice!

It’s definitely worth the elbow grease it takes to clean them up!

[oleskool]

Well had some time to fix the coolant leak I’ve been searching for. I could always smell it but it hid itself well. I had to piece it together and find a hard to find connector. So far she’s doing great after the test drive. You can see after god knows how many years the metal diverter t was rusted almost through.  
 

 

[oleskool]

I had a hard time finding 3/4” to 5/8” molded hose quickly. My plan is to go in and replace the spliced hoses with molded 90 degree 3/4” to 5/8” silicone heater hose but this gets me back up and running for now. 

[Salvagedcircuit]

In case you are looking for a replacement diverter T:

The part is called "CHRYSLER HEATER HOSE RETURN 52003248" available here.