Heater Control Valve
Thread Starter
|
New User
Joined: Jul 2014
Posts: 4
Likes: 0
Heater Control Valve
We are leaving next week to drive to CA from OK. I was changing the coolant and the flush said to turn the heater on. Well, no heat front or rear. So I took the heater control valve off and flushed the heater core and a bunch of flakes came out of it.
My question is: Do I have a bad heater control valve? With the valve out of the vehicle water was not able to run from the front out to the back or down. My understanding is that the valve should be always open except with max a/c. Any thoughts?
Thanks in advance.
My question is: Do I have a bad heater control valve? With the valve out of the vehicle water was not able to run from the front out to the back or down. My understanding is that the valve should be always open except with max a/c. Any thoughts?
Thanks in advance.
Thread Starter
|
New User
Joined: Jul 2014
Posts: 4
Likes: 0
Bought a heater control valve at O'reilly's. I bought a Murray (Murrary $35 vs Motocraft $55). When I put the water hose up to the inlet water came out of both outlets as I expected. Like I said above when I put water in the linlet of the old valve no water came out of the outlet. The vacuum port is on the otherside of the valve on the Murray. Not a big deal since there is plenty of vacuum line available.
So after install, good heat. Of note, when I first took delivery in Dec. 1999, there was no heat either. I assumed it was the heater control valve they replaced but I don't know.
So after install, good heat. Of note, when I first took delivery in Dec. 1999, there was no heat either. I assumed it was the heater control valve they replaced but I don't know.
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
We are leaving next week to drive to CA from OK. I was changing the coolant and the flush said to turn the heater on. Well, no heat front or rear. So I took the heater control valve off and flushed the heater core and a bunch of flakes came out of it.
My question is: Do I have a bad heater control valve? With the valve out of the vehicle water was not able to run from the front out to the back or down. My understanding is that the valve should be always open except with max a/c. Any thoughts?
Thanks in advance.
My question is: Do I have a bad heater control valve? With the valve out of the vehicle water was not able to run from the front out to the back or down. My understanding is that the valve should be always open except with max a/c. Any thoughts?
Thanks in advance.
Thread
Thread Starter
Forum
Replies
Last Post
