Car heating question
Thread Starter
Grifball Player
Joined: Aug 2004
Posts: 27,249
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From: Foundry
Car heating question
Hey fellas,
Question about my Sentra. Not sure how long this has been happening, but i just noticed it tonight when i was going to pick someone up who was lost trying to get to my apt. I was chilling at the light and i noticed my temp gauge started going up and stopped at about the middle mark and didn't go any further. I would start driving and it would go back down again. When it was in the middle i got out the car and the fans were on. I know it's not the thermostat because that was just replaced plus it wouldn't cool off at all. I'm wondering if i need a radiator flushing or if my radiator is going bad.
Any suggestions?
Question about my Sentra. Not sure how long this has been happening, but i just noticed it tonight when i was going to pick someone up who was lost trying to get to my apt. I was chilling at the light and i noticed my temp gauge started going up and stopped at about the middle mark and didn't go any further. I would start driving and it would go back down again. When it was in the middle i got out the car and the fans were on. I know it's not the thermostat because that was just replaced plus it wouldn't cool off at all. I'm wondering if i need a radiator flushing or if my radiator is going bad.
Any suggestions?
So OG it hurts.
Joined: Mar 1999
Posts: 6,592
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From: VA
Bleed the system perhaps. I don't know what year sentra you have, but the older ones were just dummy lights. It didn't have an actual sensor that monitored coolant temps. It just had a sensor once it reached a certain degree of temperature it just aid "hot".
Perhaps the newer ones actually monitor the temps.
I'd bleed the system once for peace of mind.
Perhaps the newer ones actually monitor the temps.
I'd bleed the system once for peace of mind.
I
Joined: Jan 2001
Posts: 56,525
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From: Westside til I die
Definitely bleed the system/replace the coolant. It should never reach the halfway point.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
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Nobama
Joined: Sep 2004
Posts: 6,961
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From: Sarasota, Florida
Are you sure the fan you heard was the radiator fan, and not the AC fan?
If it has two, one may not be working. Being the one kicked on by your temp sensor.
If it has two, one may not be working. Being the one kicked on by your temp sensor.
Last edited by BetterBob; Jul 2, 2009 at 08:17 PM.
v-card member alpha
Joined: Oct 2006
Posts: 4,010
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From: Assplosion, NE
Check the coolant levels just to be safe, it should be up to the filler neck of the radiator when you remove the cap (after it's cooled down) and there should be fluid in the overflow/reserve tank even when everything is cooled down.
Hard to say when you're not familiar with a particular brand, let alone that model. Some temp. gauges are meant to show the small normal fluctuations in coolant temp. but some aren't. Reaching the middle of the gauge is normal for some cars, for other above 1/4 is unusual.
If you are driving at a good speed (30+), no matter the temp. outside, with the A/C off, you should be able to come to a stop and not have the cooling fan running as soon as you get out of the car.
Hard to say when you're not familiar with a particular brand, let alone that model. Some temp. gauges are meant to show the small normal fluctuations in coolant temp. but some aren't. Reaching the middle of the gauge is normal for some cars, for other above 1/4 is unusual.
If you are driving at a good speed (30+), no matter the temp. outside, with the A/C off, you should be able to come to a stop and not have the cooling fan running as soon as you get out of the car.
