I’m not understanding the routing in this post. Could you clarify a bit better?
And as far as the thermostat being in backwards, I installed the cone shaped side facing out of the thermostat housing, so the spring and retainer side is inside the motor technically. I assume this to be correct? I didn’t think it could fit the other way inside the housing.
I apologize that it’s taking me a while to respond. I’ve been in the process of working overtime, looking at rental houses, and to top it off it’s been a whopping 3 degrees average here with no garage to work in I haven’t been able to pressurize the cooling system as it’s been snowing about every other day here.
However, I can conclude that the car does no longer overheat now that I fixed the overflow line and bled the system again! One prolem down, one left to go
Brandon
P.S. - As stated previously I did already flush the heater core reverse first then forward with a water hose. I didn’t see any gunk come out of the lines and it had very strong pressure coming out of the hoses.
P.P.S. - I went through an image cache I have of a few things. This is from a 92-93 DA, but i see the routing that should be correct, as long as they are the same for 90-91. I just need to know which port on the firewall is the core outlet and the core inlet!
90-01 should all be the same… inlet starts under the dizzzy to the heater valve to the core and then core to the backside of the head near the stat housing
Okay guys, I also have no heat. I believe my temp gauge works, it didn’t work when i first got the car but started working now, I didn’t do anything to it but it goes up and down like it should. My engine is not overheating, and my blower motor works. Another issue I do have tho is that my interior has intense humidity, i used to have to wipe the windshield with a towel before I drove because it would be fogged up, I figured it was just moisture in the car coming from a leak such as a sun roof. I don’t believe I have the passenger side cowl leak or the tail light gasket leak because no “gigantic pools of water” have accumulated anywhere inside my interior. Back to the heat though, could both of these things, no heat and intense humidity be attributed to a broken heater core? That’s my theory so far but would like to hear what you guys have to say before this weekend when I will try to diagnose the issue.
The major problem with this is that humidity accumulates still in the winter but freezes to my windshield on the inside, with no heat I can’t melt this so I have to blow dry it with an extension cord and ice scrape the inside of my car every morning. It’s honestly not safe to drive because every window has an ice sheet over it so I’m totally blinded but I need to get to school and work. Please help me diagnose this issue so I can fix it this weekend.
is your coolant level dropping? does the moisture smell like coolant? if not, then you likely just have an exterior leak. check the spare tire well. if the sunroof or hatch drains clog, water enters and ends up there.
for the het issue, check to see that the heater valve is moving as it should when heat is selected
Okay guys, so I identified the problem with the heat in my DA. The previous owner cut the coolant hose and removed the heater control valve entirely and then just rerouted into wherever the coolant leaving the heater core would go to… I have no idea why but I suspect the heater core has a leak and the previous owner only owned the car in summer so I guess this worked for him? Honestly in shock though. I have to go buy a heater control valve and some tubing and then see if my heater core is leaking.
First off, sorry for yet another delayed response. I moved once again and have been setting up the house and taking care of all my other needs and haven’t had time to work on the DA. I finally had some time last night and it turns out my HC outlet hose and bypass? hose were crossed. Which ever line runs down under the intake to the drivers side.
Switched them around and 152 degree heat! I REALLY do appreciate all yall’s help sorting through it and the reference material.
I haven’t been able to pressurize the cooling system as it’s been snowing about every other day here.
