Coolant buzzer going off and your Coolant is full? Look inside...

Brent · 11-16-2008, 07:09 AM

This is a question I see pop up a few times a week I see a lot of people having issues with the coolant buzzer going on and staying on as soon as the turn the car on and(this is key) they have verified that they are topped off at the filler neck. The most common reason for this(at least 90% of the cars that I have fixed) is the connector on the wire has become loose or disconnected close to the AC/PS/Front Rotor Housing by the spark plugs. It is a single black wire. I do not have a picture of what it looks like since I am currently deployed, but look/feel around... you'll find it. Many times if you have recently changed your spark plugs you may have knocked it loose.

I see alot of people saying to just ground the sensors out. This is the wrong answer. Take some time and find the issue. If you have verified that the connector is in fact plugged in, post here with your questions and we will do our best to help out

Brent

BLKTOPTRVL · 11-16-2008, 11:25 AM

In my experience, I see this as a fuller cap/burp issue.

Brent · 11-16-2008, 11:34 AM

Quote:

Originally Posted by BLKTOPTRVL

In my experience, I see this as a fuller cap/burp issue.

As stated above... buzzer stays on all the time when coolant is toped off. A burp issue means that sensor is doing it's job and the owner should fill up the filler neck above the sensor.

With the issue stated above, the buzzer comes on as soon as the car is powered on and does not go off. If it has air in the system, once the system is hot it will purge the air to the top and drop the coolant level below the sensor, thus kicking the buzzer on.

David Jerome · 11-16-2008, 12:21 PM

I have had a couple of the sensors fail, I think a new one from malloy is around $13-15.00.

Signal 2 · 11-16-2008, 12:58 PM

I've also seen a few with the wire broken right at the sensor. It's gets snagged while working in the area, or just fatiques and breaks with heat and age.

VR8 · 11-16-2008, 05:52 PM

I've got a similar issue with my FC. I'll have to check the other end of the wire.

savannafc4me · 02-14-2012, 08:25 PM

I'm havin the same issue. As soon as turn on the car the buzzer goes off and will not stop until I'm going over 60 mph. I have checked the coolant and the sensor wire but no cigar. What else can I do????

Feedthafire · 05-25-2013, 01:19 PM

coolant topped off means nothing, i had this exact issue did lots of research purchased this awesome funnel, followed directions and fixed all my problems.... here it is

11-16-2008, 07:09 AM	#1
Brent Sua Sponte Join Date: Feb 2008 Location: Killeen, TX iTrader: (4) Posts: 839 Rep Power: 17	Coolant buzzer going off and your Coolant is full? Look inside... This is a question I see pop up a few times a week I see a lot of people having issues with the coolant buzzer going on and staying on as soon as the turn the car on and(this is key) they have verified that they are topped off at the filler neck. The most common reason for this(at least 90% of the cars that I have fixed) is the connector on the wire has become loose or disconnected close to the AC/PS/Front Rotor Housing by the spark plugs. It is a single black wire. I do not have a picture of what it looks like since I am currently deployed, but look/feel around... you'll find it. Many times if you have recently changed your spark plugs you may have knocked it loose. I see alot of people saying to just ground the sensors out. This is the wrong answer. Take some time and find the issue. If you have verified that the connector is in fact plugged in, post here with your questions and we will do our best to help out Brent __________________ Road Atlanta August 2011 NASA TT 1:33 http://www.youtube.com/watch?v=IFY00PAK_Ps Traqmate's video of my car from the 2011 UTCC at VIR http://www.youtube.com/watch?v=2Zcn6...layer_embedded Video of Yellow LS1 FD at NASA TT at VIR http://www.youtube.com/watch?v=e6k0lJkcwrM

11-16-2008, 12:21 PM	#4
David Jerome RCC Contributor Join Date: Jan 2008 iTrader: (10) Posts: 713 Rep Power: 17	I have had a couple of the sensors fail, I think a new one from malloy is around $13-15.00. __________________ David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) PM me about low priced, high quality port work

11-16-2008, 12:58 PM	#5
Signal 2 Viable Fossil Join Date: Mar 2008 Location: Mid-West iTrader: (0) Posts: 199 Rep Power: 17	I've also seen a few with the wire broken right at the sensor. It's gets snagged while working in the area, or just fatiques and breaks with heat and age. __________________ Jim VR R1 FD

05-25-2013, 01:19 PM	#8
Feedthafire Rotary Fan in Training Join Date: Feb 2013 iTrader: (0) Posts: 41 Rep Power: 0	coolant topped off means nothing, i had this exact issue did lots of research purchased this awesome funnel, followed directions and fixed all my problems.... here it is Last edited by ZGN; 05-28-2013 at 08:28 AM..

11-16-2008, 11:25 AM	#2
BLKTOPTRVL Rotary Fanatic Join Date: Feb 2008 iTrader: (0) Posts: 192 Rep Power: 17	In my experience, I see this as a fuller cap/burp issue.

11-16-2008, 05:52 PM	#6
VR8 Dragon Slayer Alumni Join Date: Mar 2008 Location: Lynchburg, VA iTrader: (0) Posts: 204 Rep Power: 17	I've got a similar issue with my FC. I'll have to check the other end of the wire.

02-14-2012, 08:25 PM	#7
savannafc4me The Newbie Join Date: Oct 2008 iTrader: (0) Posts: 14 Rep Power: 0	I'm havin the same issue. As soon as turn on the car the buzzer goes off and will not stop until I'm going over 60 mph. I have checked the coolant and the sensor wire but no cigar. What else can I do????