ISSPRO temp sensor bad?
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Elder User
Joined: Apr 2005
Posts: 533
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From: Simpsonville, SC
ISSPRO temp sensor bad?
Hey guys,
Did a full gauge install a few years ago. ISSPRO EGT/Boost/Trans temp/Coolant temp. About a year ago the trans temps went nuts ... disconnected the sensor, cleaned the contacts, all ok. Now the water temp is acting funny ... reads quite high (like 250 the other day, in 60deg weather no towing). I cleaned the connector once and it behaved for awhile, now it's back. Do these things go bad? I doubt it's the gauge?
Did a full gauge install a few years ago. ISSPRO EGT/Boost/Trans temp/Coolant temp. About a year ago the trans temps went nuts ... disconnected the sensor, cleaned the contacts, all ok. Now the water temp is acting funny ... reads quite high (like 250 the other day, in 60deg weather no towing). I cleaned the connector once and it behaved for awhile, now it's back. Do these things go bad? I doubt it's the gauge?
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 24
From: Damon (South East Texas)
Are the coolant and trans temp sensors of the same type? I don't know what the resistance spec should be across the sensor. But if the two temp sensors are the same, you can compare readings when everything is "dead cold" and see if they are similar.
Laughing Gas
Joined: Feb 2007
Posts: 775
Likes: 0
From: Williamston, MI
That's what Clay suggested as a test for my oil/fuel pressure. But, not sure if it would work for temps?
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Elder User
Joined: Apr 2005
Posts: 533
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From: Simpsonville, SC
It was a OH CRAP moment the first time I saw my coolant at 250 but then I realized nothing funny was going on with the truck, coolant wasn't leaking, fan clutch wasn't engaged and the stock temp gauge (as worthless as it is) was at normal...
Senior User
Joined: Aug 2004
Posts: 327
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From: Los Angeles
My ISSPRO fuel pressure sending unit went bad and the gauge just started climbing slowly while I drove home. I checked the fuel pressure with a mechanical gauge and then plugged the old sending unit into my boost gauge and saw the same results. Clay sent me a new sending unit the next day.
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brwolfjr
1999 - 2003 7.3L Power Stroke Diesel
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Apr 19, 2008 03:01 PM
bad, gauge, iss, isspro, pressure, pro, resistance, sender, sending, sensor, temp, temperature, trans, transmission, unit
