My heater control valve is leaking thankfully it was in my driveway and not while I'm out on th road. I got it from O'Reilly's in September last year so it's out of warranty. Are there any good brands for these heater control valves or am I better off just getting hoses for a 97+ model and bypassing it completely. I'll still be able to control if I want heat or ac won't I, it won't always be blowing hot just the heater core will always have coolant flowing through it. Are there any consequences for bypassing it.

 

I would delete yes 97+ hoses. Don't forget to cap off the vacuum hose that controls the valve. While your at it flush the heater core very good. You will not notice any difference at all in function, and with a fully flushed core you won't have to worry about fluid setting in there for a long period as it is always flowing.

 

Thank you where does the top hose from the heater run too and where should I run the bottom one too.

 

Hose from thermostat housing goes to the bottom, hose from water pump goes to the top.

 

The picture is of a 2.5L but the flow and hook up is the same for the 4.0L If you are doing an easy open system convert the cap fitting goes in the top radiator hose flowing into the radiator.

 

Last question what size are the hoses I need. I read the one that attached to the thermostat is 3/4 and the other is 5/8. Is that correct. Also I cannot see the image you posted. Thank you for the help and your patience I appreciate it