96 Sentra.. Need advice on cooling problem
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96 Sentra.. Need advice on cooling problem

 
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Al Kondo
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Posted: Fri Dec 31, 2004 12:05 am    Post subject: 96 Sentra.. Need advice on cooling problem Reply with quote

I have a 96 Sentra with a 1.6 liter engine with 120k miles.
Recently, I have had an overheating problem. It occurred on a trip
to Florida (from Texas). I handled it on the trip by turning on the
interior heater. Fortunately, it was pretty cool outside and the
heat on the inside was beneficial.

Thinking the problem was the radiator, I brought it to a shop
yesterday. The tech there did some flow tests and indicated that he
didn't think that the radiator would have caused the problem I
experienced. I also checked the thermostat by placing it in some
boiling water to see if it functioned correctly..... it did. After
reinstalling the radiator and the thermostat, I ran the car today in
the garage to see if the overheating continued. Here is what I
found:

1. the fluid was boiling in my overflow container, while the temp
gauge read in the middle range.

2. the lower hose from the engine to the radiator was cool to the
touch after running the engine 10 minutes in the garage. The upper
hose was hot.

I would appreciate some ideas on what may be the problem and how I may
diagnose them.

Al Kondo

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Remco
Guest





Posted: Fri Dec 31, 2004 12:59 am    Post subject: Re: 96 Sentra.. Need advice on cooling problem Reply with quote

Hi Al

You didn't mention this, but your fan is electric, right? Is is coming
on before you see this overheating condition?
If not, it could be that the thermal sensor that turns this fan on is
bad.

It could also be that your waterpump has a problem.
If you remove the belt, do you feel any play in the pulley?
Regards,
Remco
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NissTech
Guest





Posted: Fri Dec 31, 2004 5:39 am    Post subject: Re: 96 Sentra.. Need advice on cooling problem Reply with quote

check the fan motors.

the both should come on when you turn on the a/c.


if they don't you have found the problem



"Al Kondo" <alkon@hal-pc.org> wrote in message
news:41d44f4a.20107099@news.hal-pc.org...
Quote:
I have a 96 Sentra with a 1.6 liter engine with 120k miles.
Recently, I have had an overheating problem. It occurred on a trip
to Florida (from Texas). I handled it on the trip by turning on the
interior heater. Fortunately, it was pretty cool outside and the
heat on the inside was beneficial.

Thinking the problem was the radiator, I brought it to a shop
yesterday. The tech there did some flow tests and indicated that he
didn't think that the radiator would have caused the problem I
experienced. I also checked the thermostat by placing it in some
boiling water to see if it functioned correctly..... it did. After
reinstalling the radiator and the thermostat, I ran the car today in
the garage to see if the overheating continued. Here is what I
found:

1. the fluid was boiling in my overflow container, while the temp
gauge read in the middle range.

2. the lower hose from the engine to the radiator was cool to the
touch after running the engine 10 minutes in the garage. The upper
hose was hot.

I would appreciate some ideas on what may be the problem and how I may
diagnose them.

Al Kondo


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