Low Coolant light yet again.

supramacist · 04-20-2008, 07:52 PM

Hello. This damn thing won't shut off and I've burped her blue.
Is there a sensor? It flickers off and on through turns and stays on the rest of the time.

I keep checking fluids and jacking it up. No bubbles. Push on hoses, nothing. All fluid levels are the same as I left them when I re-check.

Nothing going into the over flow. I'm perplexed.

Thoughts or comments would be greatly appreciated.

Mark's MKII · 04-20-2008, 10:23 PM

Coolant sensor is in the overflow jug on an 87

supramacist · 04-20-2008, 11:26 PM

I keep coming back to that.

I'm thinking that there is supposed to be some fluid in there to shut it off.
But I'm not sure. That was a conversation from a ways back.

supramacist · 04-21-2008, 12:12 AM

Problem solved. I put some fluid into the overflow and that shut it off.

Ya ya. It's my turn to wear the sign.

cre · 04-21-2008, 04:51 AM

IIRC, the overflow (actually a reservoir, not quite the same thing, but whatever) is supposed to be filled to the "Full" mark when the engine is at operating temp, and between Full and Low at when cool.

MK3 TSRM On-Line

You may feel free to overfill the reservoir if you're burping the system or unsure if you've got a leak and want a little security. After a hard drive the reservoir will purge the excess and level out right about where it needs to be. This is the best way I've found to burp the system with little effort although, you'll be nervous about the green puddle under the car for a little while.

supramacist · 04-21-2008, 05:04 AM

Leaks don't surprise me.
I'd be more concerned about the belts.

I'd remove the heater core but I think I like the thought of warmth in the winter. We'll see how she holds up and what I'm actually driving by then.

04-20-2008, 07:52 PM	#1
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Low Coolant light yet again. Hello. This damn thing won't shut off and I've burped her blue. Is there a sensor? It flickers off and on through turns and stays on the rest of the time. I keep checking fluids and jacking it up. No bubbles. Push on hoses, nothing. All fluid levels are the same as I left them when I re-check. Nothing going into the over flow. I'm perplexed. Thoughts or comments would be greatly appreciated.

04-20-2008, 10:23 PM	#2
Mark's MKII 3" Exhaust Join Date: Apr 2006 Location: Joelton TN. Posts: 70	Coolant sensor is in the overflow jug on an 87 __________________ 7MGTE

04-21-2008, 12:12 AM	#4
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Problem solved. I put some fluid into the overflow and that shut it off. Ya ya. It's my turn to wear the sign. Last edited by supramacist; 04-21-2008 at 12:36 AM.

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04-20-2008, 11:26 PM	#3
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I keep coming back to that. I'm thinking that there is supposed to be some fluid in there to shut it off. But I'm not sure. That was a conversation from a ways back.

04-21-2008, 04:51 AM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	IIRC, the overflow (actually a reservoir, not quite the same thing, but whatever) is supposed to be filled to the "Full" mark when the engine is at operating temp, and between Full and Low at when cool. MK3 TSRM On-Line You may feel free to overfill the reservoir if you're burping the system or unsure if you've got a leak and want a little security. After a hard drive the reservoir will purge the excess and level out right about where it needs to be. This is the best way I've found to burp the system with little effort although, you'll be nervous about the green puddle under the car for a little while.

04-21-2008, 05:04 AM	#6
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Leaks don't surprise me. I'd be more concerned about the belts. I'd remove the heater core but I think I like the thought of warmth in the winter. We'll see how she holds up and what I'm actually driving by then.