Weird problem....

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
xkrisx
Posts: 103
Joined: Fri Jun 30, 2006 8:57 am
Car: 1991 Nissan 240sx
Location: Rocklin, CA
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I just recently installed altima fans on my 91 240sx and a brand new coolant temperature sensor.

Fans are wired as pullers

when I'm in neutral/idle the car's temp gauge reads fine, in the middle/low..

once I put it in gear and start moving/rolling the gauge reads very hot(this is after the car initially warms up)

While driving on the highway, the gauge sort of levels out... but mostly stays to the hot side.

Has anyone seen this problem before?Im afraid to drive the car a long distance because I dont want it to overheat.I've tried:-new temp sensor-flushing cooling system-new theromostat-bled the air out of the system

I can't really think of what might be wrong other than a broken gauge.

Anyone have any suggestions?

Thanks-kris



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nismotuner1
Posts: 200
Joined: Tue Apr 15, 2008 5:19 pm
Car: s13 Hatch
05'Titan
Location: Binghamton, NY

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did you replace the coolant temp sensor or did you replace the sending unit? sensor sends signal to computer sending unit sends signal to gauge

xkrisx
Posts: 103
Joined: Fri Jun 30, 2006 8:57 am
Car: 1991 Nissan 240sx
Location: Rocklin, CA
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nismotuner1 wrote:did you replace the coolant temp sensor or did you replace the sending unit? sensor sends signal to computer sending unit sends signal to gauge
hm, I changed the one that looks like a blade connector, which I believe is the sender.

would this be my problem if I only changed the sender?

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nismotuner1
Posts: 200
Joined: Tue Apr 15, 2008 5:19 pm
Car: s13 Hatch
05'Titan
Location: Binghamton, NY

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the single blade one is the sender maybe you got a messed up one

xkrisx
Posts: 103
Joined: Fri Jun 30, 2006 8:57 am
Car: 1991 Nissan 240sx
Location: Rocklin, CA
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nismotuner1 wrote:the single blade one is the sender maybe you got a messed up one
Well, the original one I replaced was from checker auto parts, so I thought that it was possible that it was crap. so earlier today I went and bought a new one from napa and it had the same results...

thanks for your help though, im still trying to think of what might be wrong.

do you think it could be the sensor?
Modified by xkrisx at 6:08 PM 12/6/2008

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martins_240sx
Posts: 1414
Joined: Fri Oct 20, 2006 3:19 pm
Car: 1990 240sx hatch, 1975 280z, 2005 F150 fx4

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is the car actually getting hot...smell hot?

xkrisx
Posts: 103
Joined: Fri Jun 30, 2006 8:57 am
Car: 1991 Nissan 240sx
Location: Rocklin, CA
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martins_240sx wrote:is the car actually getting hot...smell hot?
well... the heat that radiates off the engine seems to be normal, doesn't seem like it's overheating... no smoke or anything out of the ordinary, but this only occurs when the car is put in gear and I start going.

I know the car's not jumping in heat that quickly, this is a matter of seconds. but it worries me.

I'm probably just going to buy an aftermarket gauge cause I am out of ideas


livinglegend2100
Posts: 1375
Joined: Fri Feb 08, 2008 4:11 pm

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nice toes

but really, find someone with an aftermarket gauge, or just another 240 cluster and hook it up. definitely electrical

xkrisx
Posts: 103
Joined: Fri Jun 30, 2006 8:57 am
Car: 1991 Nissan 240sx
Location: Rocklin, CA
Contact:

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livinglegend2100 wrote:nice toes

but really, find someone with an aftermarket gauge, or just another 240 cluster and hook it up. definitely electrical
hahahaha... didn't even notice that lol.yeah I was probably just going to get an aftermarket gauge.

just seeing if anyone knew about it to save me some $$

thanks for everyones help


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