The "Help! I have no heat!" post - Page 2 - Maintenance and Repair Forum

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Re: Heres my problem with my heater
Saturday, December 20, 2003 9:02 AM
i just went and bought a gm one for $18 cnd.
the only other themostats i could find anywhere are motorad. just comparing the closing springs, the gm spring is WAY stronger, so it looks like my waterpump may pump so much volume the motorad springs couldn't hold. <br>

Kevin Johnson
Jbody Club of Alberta
<a href ="http://sunfire_97.tripod.com" target="_blank"><img src="http://www.j-body.org/registry/poundinfire/j-body_sig.gif"></a>

Re: Heres my problem with my heater
Sunday, December 21, 2003 5:32 PM

Ok, I changed my thermostat, I refilled the coolants so its not that. I'm pretty sure the HVAC is working fine because when I turn it to cold air it blows out colder air then the "hot" air. But I still have no hot air? So I'm guessings its the heater core, is that hard to change? expensive?
thanks

<br>

<br><BR><br><br><img src="http://www.j-body.org/registry/project96cav/sig.jpg">
Re: Heres my problem with my heater
Monday, December 22, 2003 12:30 PM
Have you ever fluch our system. sometimes the heater core just clogged up, making less heat. You can check and see if the heater core is even warming up.
Re: Heres my problem with my heater
Monday, December 22, 2003 1:24 PM
or maybe there is an air bubble in the system. if you don't do it right, air will make for a cold drive inside and a really hot engine. <br>

Kevin Johnson
Jbody Club of Alberta
<a href ="http://sunfire_97.tripod.com" target="_blank"><img src="http://www.j-body.org/registry/poundinfire/j-body_sig.gif"></a>
Re: Heres my problem with my heater
Wednesday, December 31, 2003 3:59 AM
you might have a crimped vacuum line or something like that. that happened to me once and i had no hot air <br>

<br><br>2003 Black Cavalier LS Sport Coupe "Ecotec" Auto
Re: Heres my problem with my heater
Thursday, January 08, 2004 5:02 PM
Heres a question for anyone to answer. First thing when I warm up my car it don't blow out hot air but cold air until I drive for a few then it will blow out cold air and second why is my tempature gauge staying up past the halfway point I would say about 75% and when I drive it the tempature gauge would go almost to the red and the fan does kick on but its not cooling down my engine. Could anybody help me? <br>

<img src=http://images.cardomain.com/member_images/3/web/327000-327999/327669_37_full.jpg>
Re: Heres my problem with my heater
Saturday, January 10, 2004 12:18 AM
Adam Matthews wrote:

Heres a question for anyone to answer. First thing when I warm up my car it don't blow out hot air but cold air until I drive for a few then it will blow out cold air and second why is my tempature gauge staying up past the halfway point I would say about 75% and when I drive it the tempature gauge would go almost to the red and the fan does kick on but its not cooling down my engine. Could anybody help me?


Sounds like the symptoms of a bad head gasket. Run a compression test. <br>

<img src="http://home.comcast.net/~ninesevenfiregt/z.jpg">
Re: Heres my problem with my heater
Saturday, January 10, 2004 5:02 PM
Im having a simlar problem like adam matthews, my car goes to red, ice cold air from the vents, just put in a new thermostat, flushed fluid, and checked hoses, so if anyone has a sugestion, ive been told to check for air in the lines, or a bad head gasket....thanks for your help in advance. <br>

One serving of rice a day, keeps a j-body healthy and happy.
Re: Heres my problem with my heater
Sunday, January 11, 2004 9:51 AM
I think I found the problem. Well I put antifreeze in the box cause it needed some anyway and I let it trun for a few to let the antifreeze recirculate into the engine. So yesterday morning I went to warm up my car for 15 min and i came out there was heat and the tempature gauge was where it was supposed to be. But when I went to town I had my car parked and I checked my antifreeze and i didn't have any so I put more in and let it run for a few and then I saw smoke or steam coming from the top of the radiator and I looked down in between the gap and it looked wet so I think I have a leak in my radiator. So should I put some stuff in my coolent that stops leaks or should I get a new radiator? <br>

<img src=http://images.cardomain.com/member_images/3/web/327000-327999/327669_37_full.jpg>
Re: Heres my problem with my heater
Sunday, January 11, 2004 10:17 AM
There's no such thing as a mechanic in a can. By adding a treatment to "clog" your radiator, you also take the chance of damaging other parts of your cooling system.. i.e. water pump, thermostat, etc.

If you can, take the radiator to a shop. If it is in a seam, they can likely repair it for you. If not, they can let you know that you need a new radiator.

<br>

<br>
Sig removed because some people cry too much.<br>
</a>Scott Heflin, President Team Forward Motion <a href="http://www.teamforwardmotion.com" target="_blank">TFM </a> <a href="mailto:immortal@phobia.net">Email</a>
Re: Heres my problem with my heater
Monday, January 12, 2004 4:57 AM
Scott's comments are very true, to an extent. Most "stop-leak" substances are nothing more than thickening agents or powdered metallic compounds that run the risk of damaging other componants. I've seen people completely clog a radiator or seize a water pump by using them too much.

That being said, if you're just trying to "get by" for a temporary time, it usually will not hurt to use these products ONCE. Notice that said once, not "once or twice" or "every once in a while". If they don't work on their first try, they're not going to hold. <br>

<img src="http://home.comcast.net/~ninesevenfiregt/z.jpg">

Re: Heres my problem with my heater
Monday, January 12, 2004 11:16 AM
I'm not going to use that stuff. I just had my car checked out and I do need a new radiator. So I had one ordered for $128 and I get it on thursday. Thanks for the help. <br>

<img src=http://images.cardomain.com/member_images/3/web/327000-327999/327669_37_full.jpg>
Re: Heres my problem with my heater
Tuesday, January 13, 2004 4:27 PM
How about this one.

My car runs very cold, all the time.
I have replaced the rad, pump, thermostat, hoses, and flushed everything on 2 occations.
When i change the thermo, i get heat for about a week, then the car runs cold again(i mean the gauge is at the bottom)
If i let the car sit and warm up, the gauge goes up and i have heat.
As soon as i start driving, the gauge falls back to the bottom, and i lose the heat in the car.

My guess is that the header(pacesetter) is a lot closer to the thermostat housing than the original manifold was, thus heating the housing, and circulating the coolant when i rev the engine.(I have let it warm up, put it in neutral, and held the rpms at 3000, the gauge falls then too, without the car moving.)

Do you think some heat wrap could solve this problem?
Re: Heres my problem with my heater
Wednesday, January 14, 2004 10:25 PM
Quote:

Ok here's the problem I'm having, Heater works fine plenty of hot air! The problem is when I try to turn the fan up to anything above the first setting, there is a terrible vibration like something is hitting one of the fan blades, I'd take it to the dealership but I don't want one of those hacks taking apart my beautifully painted dashboard. Can someone tell me how I would go about getting at the blower itself? I've taken apart my dash many times and I don't think I have ever come across it, probably since it is not located near the top because I only take off the parts that need to be painted. Please help this noise sounds terrible and it is probably something simple like a piece of plastic stuck on it or something! Thanks!


it's a piece of paper that slipped through a crack in the glovebox. open your glovebox and see if you can fix it from there <br>

hp is overrated...it's all about the g's

Re: Heres my problem with my heater
Sunday, January 25, 2004 10:14 PM
well i went down to my car last night and my car was covered in ice. its freezing in Indiana right now!and i turned on my defroster to rid my windsheild of ice and nothing happen not heat no air nothing ,but i could hear something in the vents moving and clicking into place when i turned the heat/ac blower direction knob.then i started to smell a weird burning smell.like rubber burning or something.....also my blower fan use to vibrate really bad before this happened. what do you educated guys think?
Re: Heres my problem with my heater
Friday, January 30, 2004 9:52 AM
here is my problem .. i warm up my car and it heats fine .. once i get on the main highways at speeds of 60mph or higher.. the temp gauge goes down.. and the car then gets cold and no more hot heat blows out.. my water pump was changed .. and my theromstat.. coolants are all fill .. what could be the problem ?? myheater has given me more trouble then anything cause i just fixed the module for the switches... before it was only working on High .. now it works from Low to High .. and now i have this problem with the cold air when driving on highways and the temp gauge going down to red ?? Help! <br>

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Re: Heres my problem with my heater
Friday, January 30, 2004 12:23 PM
i had the same problem, the motorad thermostats are too weak(the spring is) and the pressure is too much and they open up, buy an acdelco, there about 4 times the price but compare the springs on the two, the ac delco is much thicker
Re: Heres my problem with my heater
Sunday, February 08, 2004 10:21 PM
Alright, since i haven't seen someone post anything bout this, check this one out Guru's =x

Bout a week ago, i was driving and didn't realize it but after 45 minutes of driving i was still freezing cold, got home finally, checked the fuse, was popped, hrm. tried to change it, instantly popped.. So today the brother's and i checked it out, Unhooked the blower motor, tried again, still popped, unhooked the HVAC console unit, still popped, I've got no heat cuz of a short somewhere, anyone have any ideas where i may find this short?

Or if you've had something similiar to this, toss me some ideas to check. I'm in the 95' Sunfire GT (2.3L) and the HVAC fuse is the one popping, Slot number 7, There is something called a "Engine Vent Heater" that is in my car, and brother's and i couldn't seem to find it, so, any ideas would be of valuable help.

Greth`Sf!

MikeGT Smellz like donkey ****!
Re: Heres my problem with my heater
Saturday, May 22, 2004 9:41 PM
I was reading this site and noticed all of these FAQs spead all over the place. I want to create a whole website full of these useful FAQs. I would like your permission to copy your FAQ onto this website(its not created yet). You will get credit and I will send you a copy before it goes live so you can make sure you like the layout and the infomation and all. If you would agree to this I would be very thankful as Im sure the j-body community would too.
Re: Heres my problem with my heater
Saturday, May 22, 2004 9:47 PM
I was reading this site and noticed all of these FAQs spead all over the
place. I want to create a whole website full of these useful FAQs. I would
like your permission to copy your FAQ onto this website(its not created
yet). You will get credit and I will send you a copy before it goes live so
you can make sure you like the layout and the infomation and all. If you
would agree to this I would be very thankful as Im sure the j-body community
would too.
Re: Heres my problem with my heater
Wednesday, August 18, 2004 3:25 AM
i was just reading and thought of an important thing to say... you'll like it
last winter i was having problems with my heater like just about everyone on this post, but mine was also the engine overheating. i think firstly for all of you without a good repair manual it needs to be said that the 2.2's have 2 thermostats. First one on the outlet housing where you bleed the air out of the system (just underneath a stock air intake pipe) and another on the front where a pipe connects to a hose. anyway i had the usual week of tearing my engine apart trying to fix it. It only took so long because i didn't know about the front thermostat.

While i was trying to figure out the problem i found a good tip for keeping your car reliable cooling-wise. First go and buy new thermostats. Then drill a very small hole in the the thermostats as far in as you can on the outside rim, just outside where it folds to one side. then install the drilled thermostats in your car with the hole at the top. what this will do is make it so if air gets up against the thermostats, it will go through the hole and eventually get into the surge tank. If air gets up against the thermostats, they won't open and you'll burn up your engine without anything really being seriously wrong with it. It does make your engine warm up just a little slower but if the hole is small its well worth it. mine have about 1/8 inch holes and it runs only a couple of degrees cool and takes about 5 minutes to warm up. hope this helps any of you having a related problem.

Re: Heres my problem with my heater
Friday, August 20, 2004 3:21 AM
there was a guy in my club who had a problem like this on his sunfire
it was a melted wire in the harness near the kick panel on the drivers side ti the left


<br>


Fan Motor
Saturday, August 21, 2004 2:15 PM
Every now and then, the check engine light comes on. The car continues to work and run fine without a problem. The only symptom noted is the cooling fan motor runs all the time.

Dis-connecting the positive battery terminal resets the light, and the cooling fan returns to normal operation.

Anyone any idea what sensor(s) might be triggering this ? It only happens about every 10 days or so.
Re: Fan Motor
Monday, August 23, 2004 11:52 AM
k.....i got one.....heh......blower motor was working fine for the last 2 years......i last used the fan like 2 weeks ago... anyways....i went to turn it on the other day and nothing......none of the settings work at all....is this also a symptom of the resistor going? or is this something else??? I've checked the fuses and theyre fine...
Re: Fan Motor
Thursday, December 16, 2004 12:12 PM
Ok, you guys can take this for what's it worth, specially coming from a girl who knows little about cars, but I have had the same issues with the heater in my car.

The heat stopped working and then it would work and then it wouldn't. I found out my heater blower motor was blown, the wires were shorting out, and the electronic component in there, the one that makes the settings works and figures out the temperature of the engine, blew (for the most part).

The way I fixed it was to replace the motor (heater blower) and the electronic component. You may have just pinched the wires or shorted them out somewhere in there on the motor. Worst part is, it takes hours to figure out where the wire is fried if it's been fried.

May not be your exact problem, but this fixed my issues with my heat.

Good luck with yours.
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