low coolant light

jgfiveoh · Dec 10, 2006

my instrument cluster has a low coolant light but it has never worked. there is no sensor on the overflow tank. it's a 90 5.0L lx.

was the coolant sensor an option or standard equip for my car? i thought that all 5.0's had the coolant sensor? was mine there at one time but now missing?

where is the harness for the sensor located at?

carbed87 · Dec 10, 2006

im pretty sure it's part of the overflow cap, seeing as how theres wires going into it, thats always where i thought it was.

jgfiveoh · Dec 10, 2006

ya, its supposed to be part of the cap, but someone must've just put an el cheapo cap on there because there's no sensor or wires that i can find tucked in somewhere.

it is an E coded VIN

carbed87 · Dec 10, 2006

huh, well i wouldn't be too concerned if it's not going off. just check your coolant whenever you check your oil.

stang8urimport · Dec 10, 2006

Only GT's came with a low coolant light. I don't know why your LX even HAS the bulb installed. I would just pull the cluster and take the bulb out.

Nick

Turkey Sammich · Dec 10, 2006

PoopDawg said:
Only GT's came with a low coolant light. I don't know why your LX even HAS the bulb installed. I would just pull the cluster and take the bulb out.

Nick

I have a low coolant light in my Stang, and it is functional.

Reed · Dec 10, 2006

jinx369 said:
I have a low coolant light in my Stang, and it is functional.

Same here.

jgfiveoh · Dec 11, 2006

i guess that's what i'm trying to figure out first is whether all 5.0's had the light or just the GT's?

TheBocSez · Dec 11, 2006

My 91 LX has a functioning Low Coolant light and sensor......It just tends to function too often, even when full of coolant.

RsStanG1987 · Dec 11, 2006

Its a waste and it dosent work right.. Just check it regularly..

TheBocSez · Dec 11, 2006

If you have a low coolant light and you remove the sensor, replacing it with just a regular cap; will the light stay on or off?

Adams91LX · Dec 11, 2006

I have a low coolant light on my LX...

BDASPNY · Dec 11, 2006

i had the same prob, cleaned it no help. just unplugged it no prob after that. just keep an eye on fluids like you should anyway.

Saleen0679 · Dec 11, 2006

jgfiveoh said:
i guess that's what i'm trying to figure out first is whether all 5.0's had the light or just the GT's?

I believe it was 90+ when the LX was equipped with the low coolant light. Previously it was GT only.

Turkey Sammich · Dec 11, 2006

RsStanG1987 said:
Its a waste and it dosent work right.. Just check it regularly..

I concur. Even though it may be funtional, I still wouldn't trust it.

Mustang5L5 · Dec 11, 2006

On the 87-89 cars..only the GT's had the coolant lights. The LX's have the wiring to make it functional, but only the GT's came fully equipped.

On the 90+ cars, i beleive it was either standard on all 5.0's are part of some package. Either way, you could get the light on a 90+ 5.0 LX

With the plug unhooked, the light won't function. So if you don't have the sensor in the cap, all you need to do is find a cap with the sensor in it and locate the plug harness somewhere in the front driver's side harness and plug it in

jgfiveoh · Dec 11, 2006

thanks for all the replies. i found that i do have the harness for it. it was tucked down by the battery and i couldn't find it at first.

i also read in my owners manual that all 90 5.0's had the coolant sensor.

not sure if i'm going to use it or anything, just wanted some clarification on whether i should have it or not. i thought i had heard at one time that only GT's had it and i basically wondered what the stipulation for it was.

anyways now i and hopefully others learned something. thanks

stang8urimport · Dec 12, 2006

jgfiveoh said:
i also read in my owners manual that all 90 5.0's had the coolant sensor.

Your manual is wrong.

jgfiveoh · Dec 12, 2006

PoopDawg said:
Your manual is wrong.

ok...show me otherwise

stang8urimport · Dec 13, 2006

jgfiveoh said:
ok...show me otherwise

My 90 is proof.

low coolant light

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