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Water Temp?

Pauly17

Pauly17

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Joined
Apr 11, 2013
Messages
45
Location
Jeffersonville
I have a 2000 Pete with a 3406E 475HP and was wondering what the temp should be when the fan clutch turns on? It was up around 212 and didn't turn on yet so I turned it on manually. No lights, bells or whistles went off so Im sure all is well but was wondering if I should check into this further.. Thanks in advance for your help..
 
JDOFMEMI

JDOFMEMI

Senior Member
Joined
Jan 3, 2007
Messages
3,074
Location
SoCal
I don't know if it is right, but my 2000 KW with a 550 horse 3406E don't turn on until somewhere around 215 to 220
 
Pauly17

Pauly17

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Joined
Apr 11, 2013
Messages
45
Location
Jeffersonville
JDOFMEMI said:
I don't know if it is right, but my 2000 KW with a 550 horse 3406E don't turn on until somewhere around 215 to 220
Click to expand...

Thanks Jerry, someone else said there's turn on around 217.. I have a 3406C and that turns on around 200 so I wasn't sure.. Thanks for your response!

Paul
 
mike in idaho

mike in idaho

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Joined
Nov 22, 2012
Messages
58
Location
north idaho
My '99 KW 475 horse 3406E turns the fan on at 230°. Don't be afraid to run it a bit warm, you will get better mileage and keep the oil cleaner around 220°.
 
Pauly17

Pauly17

Well-Known Member
Joined
Apr 11, 2013
Messages
45
Location
Jeffersonville
Thanks mike I have a kw 3406C too and the fan turns on around 200 so when I saw this climbing above 210 I wasn't sure if this is the norm. Thanks for the post!
 
B

BlazinSS934

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Joined
Feb 5, 2012
Messages
125
Location
Long Island, NY
Also keep in mind many stock dash clusters have dummy gauges! The respond slowly and are really only there as an estimate. GM is notorious for this, my ECT will be at the straight up 12'oclock position reading 210 on the dash, plug in a scan tool or gauge and it will ready anywhere between 187-219.
 
DoyleX

DoyleX

Senior Member
Joined
Feb 2, 2013
Messages
571
Location
Minnesota
Occupation
Lever Puller, Gear Jammer, Pipe Twister
Find the waterneck by the thermostat. Should be a temp switch on there for the fan. Closes the circuit with and see if the fan comes on. Start there and work your way to the solenoid valve or backwards to the power delivery side. Being that age it might need replacing
 
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