Engine Temp/Heat Question

[spadepro22]

My heat is not blowing hot air. I have flushed and cleaned the hole system with chemicals from Peak and it got better(not hot) for a day or two. I also put the t stat in boiling water to make sure it works and it does and there is no air in system, I got all the bubbles out with the cap off. Now its not warm at all. It also seems like my engine bay isn't as hot as before. I checked around the t stat housing and on water temperature switch the wires on the plug from the harness is coming apart but its still connected and I'm not getting a cell. It's the plug that plugs into the white connector on the left side of the t stat. Would this have anything to do with my problem?

Here is a link to a picture I found of the plugs( can't upload from my phone)

http://www.dsmtuners.com/forums/newbie-forum/401399-connector.html

 

[gst noob]

what coolant mix ratio are you using? some cool better than others and disperse the heat really well. i had cooling problems from day 1 with my dsm and my heat always worked super good. It was so hot we would have the top down and the heat on full blast and it was STILL to hot! but i over heated changed out the gasket and currently run 1 gall of 50/50 premix and top off with straight anti freeze i also added a bottle of water wetter and my heat now sucks but at least it doesent over heat any more.

 

[GIRTH]

It's probably the thermostat. It's probably not closing all the way so the fluid is not being held in the engine long enough. On short trips and cold nights the car will barely heat up at all. How many miles on current thermostat? Replacing thermostat will probably fix your problem.

 

[spadepro22]

It's probably the thermostat. It's probably not closing all the way so the fluid is not being held in the engine long enough. On short trips and cold nights the car will barely heat up at all. How many miles on current thermostat? Replacing thermostat will probably fix your problem.

Less than 1000. It works, I seen it in boiling water.

 

[007jimmy]

Do you have a working blend door? Its either that, stuck open thermstat, low coolant or clogged heater core. Our cores flow coolant no matter what so it should be hot all the time. Grab each heater core hose to see if they are the same temp.

 

[spadepro22]

No dirt when I flushed the system so I don't think the core is clogged. The t stat opened and closed during the boiling test. What do mean bend door? If your talking about the vents there open because its blowing air, just not hot.

What about the plug that I mentioned in the opening thread? The sensor was changed also a couple thousand miles ago. If that's the temp sensor and its not making a good connection could that be it?

 

[007jimmy]

No dirt when I flushed the system so I don't think the core is clogged. The t stat opened and closed during the boiling test. What do mean bend door? If your talking about the vents there open because its blowing air, just not hot.

What about the plug that I mentioned in the opening thread? The sensor was changed also a couple thousand miles ago. If that's the temp sensor and its not making a good connection could that be it?

I said bLend door. Does the 1g have one? My 2g does. The blend door bypasses air through the heater box. Did you test the hoses? Are the heater core hoses both the same temp? Just because fluid came through doesnt mean that its fully flowing. It could be a partial clog. As for the plug, that has no effect on heat. Like i already stated the core is always flowing coolant no matter what. The only thing electrical that would effect it would be the blower motor itself and you said that it works.

 

[spadepro22]

I said bLend door. Does the 1g have one? My 2g does. The blend door bypasses air through the heater box. Did you test the hoses? Are the heater core hoses both the same temp? Just because fluid came through doesnt mean that its fully flowing. It could be a partial clog. As for the plug, that has no effect on heat. Like i already stated the core is always flowing coolant no matter what. The only thing electrical that would effect it would be the blower motor itself and you said that it works.

I'll run the car with the heat on my way home from work. Should the hoses be the same temp and how long should I be able to hold them? I have no clue about the blend door.

 

[DAO 1950]

I haven't seen this in a reply yet so, is your engine temp getting to where it should be? If not, change the thermostat if it is then you need to look at the other stuff mentioned.

 

[spadepro22]

I haven't seen this in a reply yet so, is your engine temp getting to where it should be? If not, change the thermostat if it is then you need to look at the other stuff mentioned.

Car gets to operating temp, only other thing that is mentioned that haven't been done is checking the temp of the hoses by grabbing them which I sated I'll do after work toady. Still waiting on a answer to how the hoses temp should be tho.

 

[007jimmy]

Yes the heater core hoses should be the same temp. Also your upper and lower rad hoses should be the same temp also. Keep in mind that the average "normal" coolant temp is around 200* so the hoses will be very hot to the touch. If one or more is cold or even just a little warm, something isnt right and we could help diagnose from there. Just trying to narrow down possibilities.

 

[spadepro22]

Yes the heater core hoses should be the same temp. Also your upper and lower rad hoses should be the same temp also. Keep in mind that the average "normal" coolant temp is around 200* so the hoses will be very hot to the touch. If one or more is cold or even just a little warm, something isnt right and we could help diagnose from there. Just trying to narrow down possibilities.

Ok I will report back on that in a couple hours, so keep a eye out for the results. Thanks folks

Well the lower radiator hose and the lower heater core(running to the water pipe) hose I can hold my hand on all day long. The upper radiator hose and the uppper heater core hose does get hot to touch after bit. Maybe 15 sec or so. What do you think?

 

[007jimmy]

Ok well something is impeding your coolant flow. The first thing to do is pull the thermostat and run the car without one. Now, you said its good but you just never know. Its also the easiest thing to check. Your car will take longer to warm up and when it does do the hose check again. Let us know.

 

[spadepro22]

Well tonight I tried to fix my heating problem before I take the car to the shop for the new motor to be installed and still had no luck getting the heat to get hot. I installed a new t -stat and gasket, removed the heater core hose that would not get hot and flused the hose and that side of the heater core, flushed the system again, got air out and sill no hot air. Don't know what else to do. I woudn't think it was the heater core itself, because it blows and there is no leak on the passenger side.