Air conditioning woes.
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
Ok, can you elaborate? If you only block the flow at one side of the heater core, how does the water get back to the block/pump? The video I saw uses the 74809 valve from Autozone, which shuts off the flow to the heater core and routes the coolant back to the block/pump. Does it simply just need to have the flow blocked at the core and not need to circulate?
The heater core is not apart of the necessary route of coolant for the engine, just an accessory pathway, from the block, to the heater core, and back to the system through the water pump. Cutting off one hose, simply stops the flow to the core and will accomplish the same thing as the two hose. I just prefer the dual hose valve for science reasons that I could make up if I had any facts behind them
Thanks for plugging my video guys!
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
I think both part numbers I gave you were for four hose connections to redirect the water back. I know the Ford one is for sure, that's the one I bought. Payton has a good how to install with pictures, look it up, very easy. He also tells you what vacuum line to tie-into for what you want.
Thread Starter
|
Freshman User
Joined: Jul 2014
Posts: 27
Likes: 0
Okay Folks Air conditioning is much colder, Thanks for all the suggestions. I changed the Fan, relay and blend door actuator plus added the valve to stop the water going into heater core, but I still dont think I am getting enough velocity from the fan passing through vents. If I shut one vent then of course it improves. Any other suggestions?
Is there a different fan motor that would be better? or fan blade change to force more air?
Is there a different fan motor that would be better? or fan blade change to force more air?
Junior User
Joined: May 2006
Posts: 72
Likes: 0
This may sound dumb but make sure you don't have anything blocking the intake. I remember my dad complaining for weeks of the same thing with an old silverado and it turned out to just be plastic grocery bag stuck in the intake.
More Turbo
Joined: Oct 2009
Posts: 655
Likes: 18
From: Randolph County NC
Note: According to my Hanes manual (FWIW) Place a thermometer in the center vent, place fan on max, have a/c on but not on max. Rev engine to 1200 RPMs and hold. If you are seeing 30* below ambient or better a/c side of things is working great. < 30* ambient you have an a/c issue. On a 90* day I am getting 50* out of the vent, going down the road it gets a little cooler upper 40's.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Senior User
Joined: Aug 2014
Posts: 130
Likes: 0
From: Tuttle, Oklahoma
Definitely will be looking into installing the valve. Our truck has and odd habit, when cruising down the road with A/C on normal or Max it is cool but not super cold, but if you slow down like pulling into our neighborhood it gets real cold fast. All I can contribute it to would be less flow of coolant through the heater core when idling down. Thanks for the above info. Matt
Senior User
Joined: Oct 2007
Posts: 194
Likes: 0
From: Northeast NE
Did you pull the fan motor or the fan motor resistor, to see if the evaporator has any blockage? All the air for the system has to flow thru there. I hope not, but if there was a lot of dog hair it might deeper in the hvac system.
