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Overheating engine...heater blows cold...related? Forums > > Overheating engine...heater blows cold...related? Overheating engine...heater blows cold...related?
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  #1  
Old 04-08-2009, 04:32 PM
rdw72777
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Default Overheating engine...heater blows cold...related?

Howdy,

So a couple years back I bought a 1995 Maxima after my 1995 got stolen (yes someone stole a 10 year old Neon; gotta love Philly).

Anyways thus far most repairs have been to complicated for me but at this point in the wonderful economy I'm thinking I need to become more of a car guy. This site will hopefully be step 1.

So at the end of this past winter, it seemed like me heater was steadily getting cooler with the air it produced, to the point that by March it was basically blowing cold air. I rode it out until now becasue it didn't make sense to pour money into a heater-related issue that I wouldn't need once Spring arrived.

Well now its SPring, I don't run the heat but I notice that the engine tem gauge goes right up to the border of where its considered overheating and always runs right at the edge (it has yet to go above this level for even an instant).

I guess I'm wondering, could the 2 issues be related. I;ve read some posts on here about bleeding/flushing the cooling system helping potentially with the heater issues and it seems logical to me that this might also troubleshoot the "close to overheating" issue.

At this point it doesn't seem like a dire issue since I don't drive much and could always take public transportation in the city. But I'd like to keep the thing running as well as humanly possible while avoiding the mechanic shop prices when necessary.

Thanks,

Ryan
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  #2  
Old 04-08-2009, 11:44 PM
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vpnavy vpnavy is offline
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2015 Rogue
 
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Until a Specialist pipes in...Check your belts (tension, condition, etc.), anti-freeze fluid and thermostat. The longer you wait - the more damage you could do to your engine, etc.
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  #3  
Old 04-09-2009, 04:44 AM
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desert_fox desert_fox is offline
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2000 Maxima
 
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If you are not losing coolant, take out the thermostat and put it in a pan of water on the stove. Use a thermometer as you heat it up and verify that it opens at the correct temperature.
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  #4  
Old 04-13-2009, 04:05 AM
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tech22 tech22 is offline
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Sounds like a bad thermostat.
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  #5  
Old 04-13-2009, 03:51 PM
rdw72777
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That whole bleeding the air form the system seems to have worked. I parked on an incline (I'm in the city so can't really do too much lifting the car off the ground), ran the engine with radiator cap of and a funnel connected to a lingth of hosing in the system to let air bubble out and coolant go in.

Since then, no overheating and the heater works fine. So seems the problems may have been related...

Thanks.
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