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Temperature gauge

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Old Nov 25, 2008 | 01:57 PM
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Temperature gauge

I'm going nuts, my 88 F259 came from factory with a water temperature gauge, but whenever I get in the truck the needle is right on the C but the moment I turn the truck on it goes directly to the left of it all the way and there it will stay until the truck is shuts off. I have replaced the temperature sensor by the thermostat is there a different on for the gauge? or what could my problem be?
 
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Old Nov 25, 2008 | 02:02 PM
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Dash gauges have thier own sensors... the water temp gauge is on the front of the lower intake drivers side on the small V8's.
 
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Old Nov 25, 2008 | 02:08 PM
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and you think that should be my problem or should I star looking into replacing my gauge?
 
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Old Nov 25, 2008 | 02:49 PM
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Start with the sensor it's cheap and easy to change.
 
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Old Nov 25, 2008 | 03:22 PM
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Ground your sensor wire and see if the gauge pegs out, if so replace sensor, replkace gauge if it doesnt.
 
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Old Dec 1, 2008 | 09:47 PM
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It was the sensor thanks guys! $ 4 at Advance Discount Auto Parts!
 
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Old May 8, 2009 | 05:00 AM
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Originally Posted by Conanski
Dash gauges have thier own sensors... the water temp gauge is on the front of the lower intake drivers side on the small V8's.
Wow...would you mind telling me where it is located on the 300 Six? My guage is doing the exact same thing.

By wdstang
Ground your sensor wire and see if the gauge pegs out, if so replace sensor, replkace gauge if it doesnt.
I really appreciate this, and will do so--great (old) thread!

BigSix
 
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Old May 8, 2009 | 07:59 AM
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My temp guage does the same thing, but does work sometimes. So its called the temperature guage sensor? Is it something that is easy to see, or do I really have to look?
 
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Old May 8, 2009 | 08:25 AM
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Originally Posted by nnero
My temp guage does the same thing, but does work sometimes. So its called the temperature guage sensor? Is it something that is easy to see, or do I really have to look?
It is called a temperature sender:

Here is an image:
http://i54.photobucket.com/albums/g9...enderPBMOD.jpg

/
 
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Old May 8, 2009 | 08:28 AM
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Originally Posted by BigSix1
Wow...would you mind telling me where it is located on the 300 Six? My guage is doing the exact same thing.



I really appreciate this, and will do so--great (old) thread!

BigSix
Here is a photo of your temp sender:
http://i54.photobucket.com/albums/g9...er101_5059.jpg

/
 
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Old May 8, 2009 | 03:04 PM
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My temp guage worked just fine today on the way home. Go figure. I will replace the sender thing and see what that does. Thanks.
 
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Old May 8, 2009 | 04:36 PM
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Originally Posted by subford
Here is a photo of your temp sender:
http://i54.photobucket.com/albums/g9...er101_5059.jpg

/
Subford,

Hey, man-thanks a lot for the pic!

I really appreciate it.

Big Six
 
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Old May 22, 2009 | 11:47 AM
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subford,

Thanks again for the link. However, that appears to be a pre-EFI 300-6 in the photo, right? And I cannot seem to find that sensor on the passenger side of the block, rear, which that shot appears to depict. Admittely, I have a shoulder injury which prevents me from crawling around much, but is it possibly located elsewhere on an EFI six?

Thanks,

BigSix
 
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Old May 22, 2009 | 12:16 PM
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That is where it should be.

Here is an image out of the 92 shop manual:


/
 
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Old May 22, 2009 | 09:38 PM
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My gauge was doing the same thing. Went to check the sending unit and when I pulled the connector the guts came out. had to drill it and helicoil it.
 
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