Coolant level is fine, but says low? (Full Version)

Hummer Forums >> Hummer Lineup >> Hummer H1

Coolant level is fine, but says low?

  

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

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.

  
Muddydawg75 -> RE: Coolant level is fine, but says low? (1/30/2008 5:45:29 AM)

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.

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

uh oh.

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

3hummers -> RE: Coolant level is fine, but says low? (1/30/2008 10:21:18 AM)

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.

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

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..

Muddydawg75 -> RE: Coolant level is fine, but says low? (1/31/2008 10:40:21 AM)

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...

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

out of curiousity what would unpluging it do??

thanks in advance.[;)]

Muddydawg75 -> RE: Coolant level is fine, but says low? (1/31/2008 4:53:46 PM)

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..

vilim12 -> RE: Coolant level is fine, but says low? (1/31/2008 7:34:59 PM)

i think muddy is right

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

Just to update, i unpluged the sensor and the light went off...now im in the market for a sensor

thanks for the advise

Muddydawg75 -> RE: Coolant level is fine, but says low? (2/3/2008 7:19:00 AM)

Sweet... much cheaper than your other options...

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

ohhhh yeaaa

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

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

Muddydawg75 -> RE: Coolant level is fine, but says low? (2/4/2008 1:56:10 PM)

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...

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

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.

  

Page: [1] 2   next >   >>

Return to Hummer Forums home page or view the Full Version of this page.