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Old 01-31-2018, 08:39 PM   #1
Mini-Skoolie
 
Join Date: Jan 2018
Posts: 16
Blue Bird

Hello everyone, I have a 1989 Blue Bird with 5.9 cummins. Took out both heaters and reconnected coolant lines. Turned on bus and no leaks so good there. Now my front heater and defrost aren't getting warm. I let bus run for awhile and the radiator where you fill it wasn't even warm. I live in Montana and it was 28 degrees. Any ideas what I need to do or what I did wrong? Coolant in radiator is near top but not full. Thanks for any help. I also took out the heater pump that was near my 2 back heaters when I took them out. Valve is open. Also seems to be little knocking noise where front air comes out.
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Old 01-31-2018, 08:41 PM   #2
Skoolie
 
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Join Date: Jan 2018
Location: Allenstown NH
Posts: 205
Year: 2000
Coachwork: Bluebird
Chassis: TC-1000
Engine: 5.9 Cummins 24v
Rated Cap: 39 Students
System may just need a big burp.
Also did you confirm that your "main" heater core is still in the loop?

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Old 01-31-2018, 08:45 PM   #3
Mini-Skoolie
 
Join Date: Jan 2018
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Hey Bennys tire. My first bus so where would I look to see if main heater core is still in the loop. As big burp goes, you mean take rad cap off and fill til bubbles gone? Thanks for replying
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