Awesome, thanks for the info!
Koso slim water temp gauge install
- Thread starter half k cruiser
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Awesome, thanks for the info!
Thanks for confirming!
Got it all wired up. Used a switch blank previously occupied by the useless "security" light.
2 questions on the operation of the gauge itself, for those of you who have been using it for a while:
1) I'm pretty sure there is either a delay or that the gauge doesn't make accurate readings before the truck reaches normal temperature. It will stick at 46* or 32* or whatever the overnight temperature was for a good long time before changing at all--even after the stock gauge has started moving. Then it jumps up in big increments, occasionally sticking at random readings (e.g. 125* ) for a minute or two before continuing it's sweep up to operating temperature. Is this normal, or do I have a bad ground or something?
2) Isn't the stock thermostat supposed to open around 180? Once up to temperature, mine seems to stick in teh 169-176 range (cool weather), hasn't gone over 176 yet on the highway, in traffic or idling. Maybe I have a cooler thermostat? Or maybe that's just normal for cool weather?
And because you guys love pics:
2 questions on the operation of the gauge itself, for those of you who have been using it for a while:
1) I'm pretty sure there is either a delay or that the gauge doesn't make accurate readings before the truck reaches normal temperature. It will stick at 46* or 32* or whatever the overnight temperature was for a good long time before changing at all--even after the stock gauge has started moving. Then it jumps up in big increments, occasionally sticking at random readings (e.g. 125* ) for a minute or two before continuing it's sweep up to operating temperature. Is this normal, or do I have a bad ground or something?
2) Isn't the stock thermostat supposed to open around 180? Once up to temperature, mine seems to stick in teh 169-176 range (cool weather), hasn't gone over 176 yet on the highway, in traffic or idling. Maybe I have a cooler thermostat? Or maybe that's just normal for cool weather?
And because you guys love pics:
@Heckraiser where did you tap into the cooling system for you're gauge?
In the upper radiator hose with the glowshift adapter.
My sensor is installed in the upper rad hose too. Unlike the stock sender, the Koso one only sees hot water once the thermostat opens. I believe the thermostat opens at 180 but closes again at a lower temp, leading you to see slightly lower temps in cold weather once it has first reached 180.
I drilled and tapped the upper hard pipe.
I use an Autometer gauge though. @Heckraiser - That is a super-clean install on the Koso gauge!
I use an Autometer gauge though. @Heckraiser - That is a super-clean install on the Koso gauge!
The sensor on my koso is going out I think. Started my 80 today to let the fluids cycle through it and after 15 minutes it wouldn’t go any higher than 115*F. I heard the thermostat open so I know it was well over 115. Anyone have this issue before?
I’m gonna remove it and see if it just needs to be cleaned off or something before ordering a new sensor.
I’m gonna remove it and see if it just needs to be cleaned off or something before ordering a new sensor.
I haven’t heard if thjs issue yet. Mine is working quickly and accurately still but it’s onky about 2.5 years old.
My sender is in the outlet pipe and it starts moving up in temp quickly after start up.
Mine used to do the same. It would change with every incline decline often. Now it’s stuck at 115* I think mines about 4-5 years old. I’ll clean it up and see what happens.
Just purchased the guage from koso. Still on the fence between tapping the outlet pipe or ordering a radiator hose adapter.
Has anyone ran a comparison to what the stock sensor is reading verses the Koso unit? I typically see a 7-11 degree difference between the stock sensor (higher) than the Koso coming off the drivers side upper rad hose.
i run mine at the upper radiator hose and it has worked for me for most of the winter and now beginning of summer. Just 1 thing to consider tho with the sensor in that location; the sensor tends to heat soak in long slow wheeling condition and it will read high, mainly because the Koso sensor is a 1/8" male BSP, so i had to use an adaptor from male BSP to male NPT to make fit. I have since added a heat wrap/shield around the adaptor and it seems to help with the reading. drill and tap into the water jacket seems to yield better readings.
The stock gauge location will yield hotter readings until the thermostat is fully open since the stock sensor is down stream of the thermostat and the Koso sensor is upstream.
Yeah I understand that I'm talking about when at full operating temp, steep inclines loaded on hot days the biggest difference I'll see is 199f from the factory and 187f on the Koso, around town and such it'll be between 191-195f on the factory and 183-185f on the koso
understood...how are you getting readings from the stock temp gauge sensor? Also how are you tapping your aftermarket koso sensor for readings?
I use the Toyobd dongle and app for the factory sensor readings and the Koso is inline on the upper rad hose on the drivers side.
Long term thoughts on this Koso? Going to install one of these with this 80 series 1FZ Upper Coolant Outlet- Modified from Joey at some point.