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95 chevy temp sensor.


jeff moralez's Avatar
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09-14-03, 04:38 PM   #1  
jeff moralez
95 chevy temp sensor.

How do I check the coolant temp sensor in a 95 chevy van.

 
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mike from nj's Avatar
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09-14-03, 08:22 PM   #2  
mike from nj
on any coolant sensor on any car

with an ohmmeter, measure it's resistance.

the resistance changes with it's temperature

(for example--32F=12,000ohms, 120F=300ohms)this is off the top of my head, it is not the specs!!!

you should be able to find the chart comparing the temperature with the resistance somewhere online(???) or at least in the library in the big mitchell manuals, hopefully in the section for fault codes(coolant sensor), i would think at least one step would have you measure it's actual resistance and compare it to a standard to see if it's good or bad.


hope that helps

 
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09-15-03, 06:57 AM   #3  
Joe_F
What's the actual problem?

 
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09-15-03, 09:57 AM   #4  
jeff moralez
temp needle wont move. Its on cold

 
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09-15-03, 10:20 AM   #5  
Joe_F
The coolant temp sensor typically works with the PCM for emission/fuel mapping.

You want the gauge sender which controls the dash gauge. Typically, two different parts.

Hit any GM dealer's parts counter and they will find the right part for you.

 
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09-15-03, 06:27 PM   #6  
jeff moralez
intresting, I will check the dealer.

 
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