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Missing coolant level sensor and a TON of hanging wires...

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Old 04-09-10, 11:18 PM
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Why? Why?? WHY???

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Missing coolant level sensor and a TON of hanging wires...

Tonight I finally got the new vert running, with A LOT of hesitation, and now I'm trying to tackle a few of the problems that I'm finding.

After 11 seconds, (I timed it) I get a constant buzz and the idiot cluster light for low coolant is on. I've checked the coolant and it's fine, and all the other fluids for that matter. I read a post about grounding out the coolant level sensor to stop the buzzing but heres the kicker... I have no coolant level sensor.

Does anyone know where the wiring for the sensor should be. I have a TON of hanging wires that I need to figure out and I'm thinking that some of these might be a few of my problems.




Old 04-09-10, 11:33 PM
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Its really hard to tell from those pics but it looks like in the 1st picture, all the wiring that went to the rats nest was cut. What kind of motor is in the car, TII swap or NA? The coolant temp sensor would be on the back of the water pump housing. Usually a green plug. As far as the buzzer the coolant level sensor is usually the culprit. This is the sensor on the top of the radiator with one wire coming out of it. It maybe faulty or not connected at all. Mine is weird and only works outside of the radiator, I get no buzz unless I take it completely out. I have two and the same thing happens with both. The white plug in the 3rd pic looks like it connects to the oil level sensor in the oil pan. This sensor also sets off a buzzer, and if that is not connected that could be your buzzer problem as well. I hope some of this helps. I don't think I gotten any plugs mixed up. Good luck!!
Old 04-10-10, 12:22 AM
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Why? Why?? WHY???

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Originally Posted by hiroichi1515
What kind of motor is in the car, TII swap or NA?
It was a 91 NA that the previous owner did a swap on to an S5 turbo motor... (After reading a few posts I think it even might be a JDM motor, but not 100% sure...


The coolant temp sensor would be on the back of the water pump housing. Usually a green plug.

Originally Posted by hiroichi1515
As far as the buzzer the coolant level sensor is usually the culprit. This is the sensor on the top of the radiator with one wire coming out of it. It maybe faulty or not connected at all.
Not connected, or even there...

Originally Posted by hiroichi1515
The coolant temp sensor would be on the back of the water pump housing. Usually a green plug.
I'll have to follow this wire tomorrow, is there a way to bypass this, to stop the buzzing?

Originally Posted by hiroichi1515
The white plug in the 3rd pic looks like it connects to the oil level sensor in the oil pan. This sensor also sets off a buzzer, and if that is not connected that could be your buzzer problem as well.
Might have to check this out as well...
Old 04-10-10, 11:58 PM
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The temp sender on the back of the water pump has nothing to do with the Buzzing.
it is the Wire Coming OFF the harness that goes to the Sender on the TOP of the rad that needs to be grounded to stop the buzzing.
If that sender is not hooked up or missing you will get buzzing even with the engine off,but key on.(about 5 seconds after you hit the key to on).
Old 04-11-10, 09:36 AM
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Why? Why?? WHY???

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Originally Posted by misterstyx69
The temp sender on the back of the water pump has nothing to do with the Buzzing.
it is the Wire Coming OFF the harness that goes to the Sender on the TOP of the rad that needs to be grounded to stop the buzzing.
If that sender is not hooked up or missing you will get buzzing even with the engine off,but key on.(about 5 seconds after you hit the key to on).
I do get the buzz even when the car is off, just the ignition on, however it takes exactly 11 seconds.

What wire coming off the harness should I be looking for?
Old 04-11-10, 10:17 AM
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The color of the wire is Br/W.
Old 04-12-10, 09:26 AM
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Why? Why?? WHY???

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Found it... It was tucked down by my passanger side headlight.
Grounded it out, no more buzz.

Thanks!
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