Coolant level is fine, but says low?

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Coolant level is fine, but says low?

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Coolant level is fine, but says low? - 1/30/2008 4:23:08 AM

Herm

Posts: 41
Joined: 5/22/2007
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Hi all, about a week or so ago a started a thread about the coolant level in my truck...after inspecting it, I added about 4 glasses of water..thats it.. but the warning light on the dash still says low coolant level...could this be the sensor, if so does anyone know where it is?? thanks.

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RE: Coolant level is fine, but says low? - 1/30/2008 5:45:29 AM

Muddydawg75

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From: South Jersey Shore
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My bet is the sensor... they fault to ground so if you know it is full and can unplug it the light should go out and let you know it is a bad sensor. I would look on the top tank on the radiator.

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RE: Coolant level is fine, but says low? - 1/30/2008 7:05:13 AM

ronb

Posts: 152
Joined: 11/9/2007
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uh oh.

read here and do the checks:
http://www.flashoffroad.com/Diesel/No8Cyl/CrackedBlock.htm

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RE: Coolant level is fine, but says low? - 1/30/2008 10:21:18 AM

3hummers

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Joined: 9/23/2007
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Is your fluid level still good? I was curious about the outcome as I thought the block issue might be raising its ugly head again also. Good luck and let us know.

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RE: Coolant level is fine, but says low? - 1/31/2008 4:50:38 AM

Herm

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Joined: 5/22/2007
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Does anyone know where the sensor is, I will replace today...hopefully that is it...I drove the truck yesterday and it ran fine..temp stayed right around normall on the gauge..

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RE: Coolant level is fine, but says low? - 1/31/2008 10:40:21 AM

Muddydawg75

Posts: 9959
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From: South Jersey Shore
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Low coolant level sensors are usually in the top tank of the radiator.... or the surge tank...

Personally I would unplug it first before buying one...

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RE: Coolant level is fine, but says low? - 1/31/2008 12:40:58 PM

Herm

Posts: 41
Joined: 5/22/2007
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out of curiousity what would unpluging it do??

thanks in advance.

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RE: Coolant level is fine, but says low? - 1/31/2008 4:53:46 PM

Muddydawg75

Posts: 9959
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From: South Jersey Shore
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in my experience low coolant level sensors usually short to ground... thus closing the circuit and giving you a light...

if you unplug it the circuit will be open...

I can't promise you that is how it works on the 1 though... I'm just trying to help... until someone that knows for sure comes along..

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RE: Coolant level is fine, but says low? - 1/31/2008 7:34:59 PM

vilim12

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i think muddy is right

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RE: Coolant level is fine, but says low? - 2/3/2008 7:13:09 AM

Herm

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Joined: 5/22/2007
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Just to update, i unpluged the sensor and the light went off...now im in the market for a sensor

thanks for the advise

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Post #: 10

RE: Coolant level is fine, but says low? - 2/3/2008 7:19:00 AM

Muddydawg75

Posts: 9959
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From: South Jersey Shore
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Sweet... much cheaper than your other options...

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RE: Coolant level is fine, but says low? - 2/4/2008 4:03:47 AM

Herm

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ohhhh yeaaa

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RE: Coolant level is fine, but says low? - 2/4/2008 1:19:25 PM

Herm

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would you believe that the sensor costs 229, it might just stay unpluged...

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RE: Coolant level is fine, but says low? - 2/4/2008 1:56:10 PM

Muddydawg75

Posts: 9959
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From: South Jersey Shore
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Are you sure that isn't for the entire surge tank? Those sensors are usually under $25...

Find a Stanadyne dealer and see if they have it.... or I can see if I can find a number off of it and get it at work...

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RE: Coolant level is fine, but says low? - 2/5/2008 5:26:11 AM

Herm

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Joined: 5/22/2007
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I went to 3 parts shops to have them tell me they dont show it in there system and I should go to the dealer...well I called the dealer and kascar and they were both over 2 bills, just for the sensor..let me know what u come up with..thanks.

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Post #: 15