is the water temp gauge suppose to come with some kind of sensor to read the water temperature? reason i ask this is because the car i purchased came with a greddy water temp sensor but it was not installed. It is sitting in the pod in the a pillar. I wanted to install it but i have no clue how to. I went to greddy's site and i didn't see any thing regarding manuals or guides. Does the gauge only come with wires, and if so, then how is it suppose to "read" the water's temperature? if its suppose to come with a sensor of some kind, where would i find it in my engine bay? The person who i purchased the car from said he didn't have time to install the gauge this is why its just sitting there.

THAnks.

 

That sucks...And he didn't even tell you if anything (like sensor wiring) was connected to the gauge?

Does your dash water temp gauge work?

 

my dash one works, however, i think it is not working right. The gauge barely makes it to 1/4 ..if not 1/5 of the way up, And its summer time and its hot as hell. I'm concerned cause the underhood temps is soo hot. I just lean over the engine for a second and my necklase gets hot enough to burn my skin. I can't put my hand above the engine cause it will burn. Its like opening up an oven door after you have baked something...really really hot.

i know the underhood temps has nothing to do with what the water temp reads. I think about it like this...if the underhood temps is that hot, keeping in mind that heat from the radiator gets blown inside the engine bay by the fan, then the water going to the radiator must be incredibly hot. This is why i think my gauge is not reading correctly.

 

so you said the sensor is sitting in the car? it should have a plug off the sensor then you wiring from the gauge should have a plug on it, the greddy gauge is a electrical gauge so if you have the sensor you should be able to tap it in somwee around the water pump and run your wires, no matter what the sensor is going to have to be tapped into something

 

im not sure if i have the sensor or not..i need to know where it would be located in the engine bay and what it looks like. So what you are saying is that the greddy gauge just comes with the gauge and the wires right? if so, how does it messure water temp with just wires? Thanks again.

 

it has a sensor thats electric, the sensor is going to have threads on the end of it so you can screw it into something (i believe i had to buy a 1/8 npt tap) if you dont see this inside the car, maybe the guy already tapped it in, but i think if he went threw this trouble the gauge would probably be hooked up cause thats the hard part, theres not really any way to know were he put it so just look around your block were water passes (the correct place to tap the sensor is before the thermostat) and see if you see something that screwed in with 2 wires coming out of it that not hooked up to nothing, it should have a plug at the end of it

 

so its suppose to be tapped in before the thermo..hmm...if you have a pic i would be really thankful :p

Ill look for it today..thanks.

 

sorry i dont have a cam, maybe somebody else will post a pic for you

 

does anyone have a pic of the sensor so that i know what i am looking for? =) thanks.

 

I'm thinking the guy bought the gauge, couldn't find a good place to tap into, figured it was too much trouble, and either "lost" the sender/wiring, or it may be in the car somewhere...

First place I would look for something like that (since your OEM gauge sender is still there) is on the back of the water pump housing, down there behind the alternator. See if any 1-wire harness is running around in that area. Is there wiring coming off the back of the new gauge?

If you can't find the sender or wiring, you might have to get with GReddy & see if you can purchase them seperately. The OEM sender location would be the best spot to place your new sender, since your original gauge seems to be shot, but it will take some "adapting" to fit the OEM threads, which may position the sensor too far from the coolant stream (I wouldn't think something under 1/2" away from OEM location would matter, due to the cohesion & thermal properties of water, but who knows). There are several threads dealing with aftermarket temp sensor locations- see if a search will help you...

 

thanks a lot wayne88n/a

 

This confused me.. the OEM water temp sender is just above the oil pressure sender, by the oil filter on the drivers side of the motor.

Also, there is a plug located on the intermediate housing (IIRC) that is ideal for adding an aftermarket temp sensor. I can get you the exact location for it. Also, my 10th AE generally never goes above like 1/8th on the gauge (course I do have the K2RD rad).

Sounds like your primary gauge is working fine, but I would add the aftermarket gauge to be sure.

 

what are the underhood temps suppose to be at anyways? im gonna take readings soon...

 

Sorry to confuse you, Rat, I was trying to lead him to the location the guy MIGHT have tapped the GReddy sender into...

Hey, where's that spot on the center housing? Never seen it before, not that I've been looking for it, though, but ya never know if I'll need it in the future

 

on the driver's side of the motor...to the left of the spark plugs....in between the A/C compressor lugs

 

Did you find the location Rat was talking about, or did you find your GReddy sender there?

 

thats the location rat was talking about.

 

that would be the front housing, then, not the center (to the "left" of the plugs, between the AC comp lugs)...

I'll have to look for that one of these days...

Did you get everything straightened out?

 

yeah front housing...you got 4 spark plugs total..the plug is to the left of the first two spark plugs...i had a pic that rat send me but i didn't save it =( that doesn't help you much lol

 

That's all right- I'll find it when I need to, everything's still nice & clean from the rebuild, & I don't have AC or PS in the way anymore, so it won't be a prob...

Don't let it happen again, though, j/k

 

Its the front housing... I was smoking crack when I said intermediate housing...

Sorry, that crack kinda befuddles my mind..

 

Are these the pics you need? Jrat sent these to me a while ago.






That's what I used! Worked super great.

 

Damn son... Thats perfect. Who ever said the board didnt have good info?

 

damn straight...that is perfect..thanks!

 

Thanks guys...How much hotter do the normal temps run with the sensor at this location? The coolant has run past both rotor housing combustion areas by the time it gets to the sensor, versus the OEM one that is forward of said housings, is there a "calibration" involved?

That probably would have been the best place for the OEM sensor, come to think of it...

Rat- get off that crack, man, use the money for car parts, tail lights, stuff like that