Luckily my truck didn't overheat before I realized. Has anyone ever bypassed the heater lines altogether? Or at least the rear heater line - and for lack of a better term, just removed and "capped" under the hood? I don't use, nor do I anticipate a time when I will use the rear heater. I want to fix it with OEM parts, but not the one I don't use...
Yup on the rear bypass. Search here and their are like a 1000 threads on it, some with excellent pics. It shouldn't take long to do. Use Gates Green hose for the replacement/ bypass lines. Cheap to do and ensures a much more reliable cooling system.
Have you checked your Pesky Heater Hose(PHH) on the drivers side of the block?
does anyone actually use their rear heater anyways? if anyone needs one, i have one for sale
honestly, i've never turned them on in either 80. do they work well? i removed it in the marshmallow because the hardlines underneath looked like they'd been under the u.s.s. constitution for the last 20 years. i loved having the space under the seat for crap. so when the new engine went in fat bastard, bypassing the rear heater was the first thing that happened.
dammit....don't tempt me....was thinking the exact same.
indeed I have never used it - but for some odd reason (in my father voice) I was "keep my car stock so when I sell it...."
but damn considering it is just there waiting to fail - u got s me thinking again....
It all depends on the climate where you live. I use the rear heater in the winter here especially when its below zero and there are passengers (or the dog) in the back. It helps even out the heat so I'm not roasting in the front while trying to warm up the rear. If I lived in a warm climate a bypass would make a lot more sense.
The rear heater puts out a lot of heat since there is no temp adjustment. I can barely keep my hand over the vent it gets so hot.
I use my rear heater all winter. I actually use it more then regular heater. I like that it keeps truck warm with out having main heat on blowing on me directly.
So if I want the rear heater operational for northern Colorado winters, and install the HPS silicone kit for my existing heater hoses and the PHH hoses, what is so unreliable about the rear heater itself, or is it just the hoses from the firewall fwd?
Call me one of the odd men out, but I like having the extra heat from the back when the temps are hovering around zero. This is on my future upgrade list as the OEM rear heater hoses are looking pretty bad ...
Replace FZJ80 stock OEM rubber pesky heater Hoses (aka phh) and the firewall heater Hoses which can eventually weaken over time, leading to premature failure
Withstand the harsh high temperature and high pressure operating conditions of the engine yet still maintaining peak efficiency during competition or daily driving. Max Temperature Rating: 350 deg. F (177 deg. C)
Perfect fit replacement for your OEM rubber Heater Hose, it is not a cheap one size fits all universal hose you get at the local parts store that you have to fight with to install
Includes 100 percent stainless steel industrial grade liner clamps which would not cut thru the silicone hoses.
Hey @tampacruiser95 , I'm replacing the Heater Control Valve today, and in the same muck as you.
I sliced mine off, the FHH's, so now I have to replace them.
