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Old 04-18-2008, 05:15 PM
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heater>>help

could the HO2S heated oxygen sensor make my heater cold and if not how do you check if your heating coil went out or if the thermastat is bad???
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Old 04-18-2008, 05:27 PM
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an O2 sensor is in your Exhaust. Most likely your termo is stuck open/closed.
If your coil was bad you would have a massive leak of Anti-freeze in you car.

To check the themo.
1 - Let the engine cool completely.
2 - Start Engine
3 - grab the return hose the one on the right that attaches to the top of the Rad.
4 - while cold feel if there is fluid moving through the hose, should be able to squeeze the hose and should not be hot. if you can feel fluid moving though it then the themo is stuck open. making it hard to warm your engine.
5 - let engine warm up completely feel hose if not hot and no fluid moving then the thermo is stuck closed which is bad.

Also check to see if you have enough rad fluid.
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Old 04-18-2008, 05:34 PM
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Quote:
Originally Posted by Dwend View Post
an O2 sensor is in your Exhaust. Most likely your termo is stuck open/closed.
If your coil was bad you would have a massive leak of Anti-freeze in you car.

To check the themo.
1 - Let the engine cool completely.
2 - Start Engine
3 - grab the return hose the one on the right that attaches to the top of the Rad.
4 - while cold feel if there is fluid moving through the hose, should be able to squeeze the hose and should not be hot. if you can feel fluid moving though it then the themo is stuck open. making it hard to warm your engine.
5 - let engine warm up completely feel hose if not hot and no fluid moving then the thermo is stuck closed which is bad.

Also check to see if you have enough rad fluid.
ok i have kinda done that in a way but my engine warms pretty fast though so im not sure and i have plenty rad fluid made sure of that today and i havent been leaking any so im rally stuck on this
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Old 04-18-2008, 05:43 PM
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Check to see if it is stuck closed.
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Old 04-18-2008, 05:48 PM
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k i'll check but if stuck closed how do you fix that and would that cause me heater to not get hot??
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Old 04-18-2008, 05:56 PM
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i just went out and did what you said and that tube was pretty hot lol and i dont think i could feel any fluid movement but i could be wrong but i really couldnt feel anything but a really hot tube
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Old 04-18-2008, 06:01 PM
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Did it have any pressure, was it hard/stiff?
What was the temp gauge reading?
Page 21-6 In the manual is a Trouble shooting Chart.

page 10-8 & 10-9 have Themo replacement and test info.
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Last edited by Dwend; 04-18-2008 at 06:04 PM.
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Old 04-18-2008, 06:04 PM
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ok sweet thank you I'll check it out but its really buggy cause it was working fine like a week ago so it's just really wierd
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Old 04-18-2008, 06:15 PM
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it wasn't to hard i could squeez it pretty easy and my temp was normal so ??
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Old 04-18-2008, 06:24 PM
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It is probably stuck closed. thus causing no fluid to move though the radiator and the heater unit.
To make sure, rev the engine with your left hand and feel the hose with the other if it was working correctly the fluid would move faster though the hose. should feel an increase of pressure though the hose.

And if you take the Thermo out and it is good, then your water pump might be the cause.
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Old 04-18-2008, 06:30 PM
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ok i'll check it out thank you for all the info it reall has helped
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