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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Nov 2009 Posts: 72 'Bolter | | 'Bolter Joined: Nov 2009 Posts: 72 | Can someone tell me where the heater hoses coming from the firewall connect to the water pump? Does it matter which hose is where on the pump? (235 second series engine in a 55 first series truck) Thanks! | | | | | Joined: Jun 2009 Posts: 2,201 Shop Shark | | Shop Shark Joined: Jun 2009 Posts: 2,201 | i don't think it matters, the heater core is just a small radiator that doesn't care which way the fluid flows. | | | | | Joined: Jan 2009 Posts: 1,644 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 1,644 | I took My top hose from stat housing to the heat control from heat control to the core and than from the core to the lower heater conection on the water pump but I do not think it matters much it looked better on My truck the way the hoses laid.
Pete | | | | | Joined: Sep 2009 Posts: 10 New Guy | | New Guy Joined: Sep 2009 Posts: 10 | The hose from the stat housing goes to your heat control connection closest to the firewall.Then from the other connection on the heat control it turns and goes through the firewall to a rad core connection. From there it goes from the other rad core connection back to the connection at the water pump Use grommets where the hoses go through the firewall.
It's fun to drive and to work on. How much better can it get
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | 51 John has it right. If it's the other way hot water still gets to your core when the valve is shut. | | |
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