Low coolant temperature indication

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Jan 10, 2010 | 10:59 AM

#11

1998ZR2

Beginning Member

Joined: Jan 2010

Posts: 43

could be the fan clutch has seized.

Jan 10, 2010 | 08:43 PM

#12

moldeck

Beginning Member

Joined: Nov 2009

Posts: 39

What is the best way to get all the air out of the colant system? I get a gurgle when I speed up sometimes and I am guessing i am low on colant in the radiator/engin.
Do I just keep squeezing the upper hose untill I can not get any more colant in?

Jan 13, 2010 | 08:28 AM

#13

dleonfc0

Joined: Jan 2010

Posts: 2

low coolant temp

Quote:

Originally Posted by 1998ZR2

could be the fan clutch has seized.

but if the fan clutch seized up would the fan still run...cause since its always running that would make perfect sense....meaning it never lets the engine get up to operating temp, but i figured if the clutch seized the fan wouldn't run at all, but i'm probably wrong...in fact i hope im wrong, because that would be an easy fix....and i'm about over this truck

Jan 13, 2010 | 10:03 AM

#14

reytx1

Beginning Member

Joined: Jan 2010

Posts: 41

From: Arlington Tx

Quote:

Originally Posted by dleonfc0

hey guys i have the exact same problem...the SES light came on, drove down to autozone to get the code, did a little research replaced the sensor and the thermostat...totalling $20...no biggie...and now a week or so later SES light comes on again and drove back to autozone and its the same code...low collant temp? any thoughts?

...also just to add the temp gauge never gets to operating temp...only gets just a notch or two above zero, but ever since the outside air temps have dropped its been like that, not the SES light, but just the gauge not getting up to normal temp...

..also if it matters...2004 ZR-2 4.3

How many degrees is the new thermostat rated for? Having one that opens at lower temperatures will keep your truck from ever getting to operating temerature.

Jan 13, 2010 | 11:14 AM

#15

terry s

Junior Member

Joined: May 2009

Posts: 301

From: Kansas City

I believe the thermostat is rated at 195 degrees. Having the fan clutch locked up and running direct should have no significant effect on the engine coming up to operating temperature.