dodgecowboy04.5

So my buddy and I wrapped up the deletes and put the minimax on his truck this morning and when he was coming home from work tonight his engine temps were hot, and by hot i mean he saw up to 250. What could the problem be? We are going over everything and double checking things but haven't found anything yet.

dodgecowboy04.5

after checking the truck I found the radiator was cold which you would think after the engine was that hot it would be hot too. any ideas?

wytesyko

Big air pocket in the cooling system??? Just a guess....Someone else should chime in soon.

dodgecowboy04.5

that actually makes sense. He told me when he got to work one of the coolant hoses in the far back was off and leaked a bunch of coolant when he shut the truck off. Neither of us remember even touching that hose but some how it came off so air was probably getting sucked into the system the whole drive. The funny thing is the coolant level still says it is ok, but tomorrow we'll flush and refil.

Blake Clark

Yeah, if you did the cooler delete you need to burp it. You got a pocket somewhere. I lucked up and mine didnt have to be burped.

Get a bib!

wytesyko

Yea here @ Chrysler whenever we open dem coolin systems up we use a vaccum bleed or the trucks hold air forever.

denhammkc

I am about to do the cooler delete, what is the best way to get the air out?

wytesyko

The best way to remove air:

1. Refer to the Chrysler Pentastar Service Equipment (Chrysler PSE) Coolant Refiller #85-15-0650 or equivalent tool's operating manual for specific assembly steps.
2. Choose an appropriate adapter cone that will fit the vehicle's radiator filler neck or reservoir tank.
3. Attach the adapter cone (2) to the vacuum gauge (1).

4. Make sure the vacuum generator/venturi ball valve (3) is closed and attach an airline hose (2) (minimum shop air requirement of 80 PSI/5.5 bar) to the vacuum generator/venturi (1).
5. Position the adaptor cone/vacuum gauge assembly into the radiator filler neck or reservoir tank. Ensure that the adapter cone is sealed properly.

6. Connect the vacuum generator/venturi (2) to the positioned adaptor cone/vacuum gauge assembly (1).
7. Open the vacuum generator/venturi ball valve.

NOTE: Do not bump or move the assembly as it may result in loss of vacuum. Some radiator overflow hoses may need to be clamped off to obtain vacuum.
8. Let the system run until the vacuum gauge shows a good vacuum through the cooling system. Refer to the tool's operating manual for appropriate pressure readings.

NOTE: If a strong vacuum is being created in the system, it is normal to see the radiator hoses to collapse.
9. Close the vacuum generator/venturi ball valve.

10. Disconnect the vacuum generator/venturi and airline from the adaptor cone/vacuum gauge assembly.
11. Wait approximately 20 seconds, if the pressure readings do not move, the system has no leaks. If the pressure readings move, a leak could be present in the system and the cooling system should be checked for leaks and the procedure should be repeated.
12. Place the tool's suction hose into the coolant's container.

NOTE: Ensure there is a sufficient amount of coolant, mixed to the required strength/protection level available for use. For best results and to assist the refilling procedure, place the coolant container at the same height as the radiator filler neck. Always draw more coolant than required. If the coolant level is too low, it will pull air into the cooling system which could result in airlocks in the system.
13. Connect the tool's suction hose (1) to the adaptor cone/vacuum gauge assembly (2).

14. Open the suction hose's ball valve to begin refilling the cooling system.
15. When the vacuum gauge reads zero, the system is filled.

NOTE: On some remote pressurized tanks, it is recommended to stop filling when the proper level is reached.
16. Close the suction hose's ball valve and remove the suction hose from the adaptor cone/vacuum gauge assembly.
17. Remove the adaptor cone/vacuum gauge assembly from the radiator filler neck or reservoir tank.
18. With heater control unit in the HEAT position, operate engine with container cap in place.
19. After engine has reached normal operating temperature, shut engine off and allow it to cool. When engine is cooling down, coolant will be drawn into the radiator from the pressure container.
20. Add coolant to the recovery bottle/container as necessary. Only add coolant to the container when the engine is cold. Coolant level in a warm engine will be higher due to thermal expansion. Add necessary coolant to raise container level to the COLD MINIMUM mark after each cool down period.
21. Once the appropriate coolant level is achieved, attach the radiator cap or reservoir tank cap.

denhammkc

Thats great, but lets assume I don't have any of the equipment you refer to is there a "shade tree" version that can get it done?

Blake Clark

You can vent it from the coolant vent that is right near the thermostat housing.