"Add Coolant" warning + buzzer, even though coolant reservoir is full...?
#26
I have the same buzzer issue. Thinking about grounding it out or getting a new one because
1. it doesnt buzz when cold (morning)
2. it buzzes when its hotter out
3. it buzzes when the key is turned to acc
4. the coolant is full, bleed all air out
so why does it buzz only in the morning and when key is turned to acc? thoroughly confused on how that works.
#27
my fc will do this too but thats because the top of the sensor on the radiator broke and now the wire is bassically just sitting on top of the sensor being grounded to the air box and it seemes to work.. not sure if that helps
#28
Could be that the sensor is on its way out too maybe? On Fd's the sensor is clearly visible. If the cap is removed and fluids are above the sensor line by all rights the buzzer should go out. If it isn't the sensor must be bad or it's associated wiring.
#29
So im filling it up by the filler neck, and burping it but when i turn the car off to go refill it (cuz it asks me too) the filler neck is super hot and steam comes out at a high pressure. Is that fine?
#31
Junior Member
air bleeder screw on radiator 1988RX vert??
I have had my 88 vert since she was new (my 4th RX) and she has 135K and in excellent shape. Had radiator hoses, oil pan and gasket replaced by local mechanic. All was well for 3 weeks. Last week I started driving and this god awful screaming buzzer went off. Never heard anything like it and it scared the bejesus outta me.. ADD COOLANT. Ok since they just flushed and changed it I went right back home and checked the overflow tank. It was about half full so I added a little. Checked the garage floor and nothing there from a leak. Back on the road and it did it again off and on and finally stopped. I was locally driving and my top speed was 45-48. It didn't do it again for a few days and then yesterday did it again but after two times it stopped. Went out this morning and it didn't do it. Thankfully found lots of info on here about this issue. First thing we will do is the air bleeder process. One post said its 'Top of the radiator where the upper hose connects' but is this on all RXs. Don't want to go on search and destroy mission to find it. I have the service manual on my pc but nothing about where it is. Attached is a pic of the upper hose configuration from the manual. Is that the screw next to the radiator cap? If not can someone post and please tell me exactly where it is.
Also if we need to check the sensor connection to make sure its tight.......Where might that be?
Since I have the service manual on my pc feel free to refer to section/page where it might show what I am looking for.
Thanks so much
Terri
Also if we need to check the sensor connection to make sure its tight.......Where might that be?
Since I have the service manual on my pc feel free to refer to section/page where it might show what I am looking for.
Thanks so much
Terri
Last edited by tbenton; 03-01-17 at 10:15 AM. Reason: more info
#32
Junior Member
Hi guys
I read some thread of people that have coolant leaks and etc. but nobody with my exact problem, that's why i'm still creating a new thread.
So, when I started my car today ('86 gxl rx7) , the "ADD COOLANT" light on my dash appeared and a really annoying buzzer came on. I check my coolant reservoir and it's full (the engine was cold). I also removed the coolant filler cap (the one next to the upper radiator hose) and it's full too, plus the fluid got a nice green color...
I also unpluged and repluged the coolant level sensor and the wire and connection seems ok.
Also, last time I drove my rx7 the warning buzzer from my aftermarker oil pressure gauge was going on from time to time. The buzzer comes on whenever oil pressure goes over 55-60 psi (which happened whenever the engine was reving higher than about 3000 rpm). I never heard the buzzer before and I was often reving higher than 3000 rpm...so, even though I wasn't looking at the gauge often, I guess it never went higher than 55-60 before... Oil temp however was normal (165-175).
maybe my 2 problems are linked together ?
thanks
I read some thread of people that have coolant leaks and etc. but nobody with my exact problem, that's why i'm still creating a new thread.
So, when I started my car today ('86 gxl rx7) , the "ADD COOLANT" light on my dash appeared and a really annoying buzzer came on. I check my coolant reservoir and it's full (the engine was cold). I also removed the coolant filler cap (the one next to the upper radiator hose) and it's full too, plus the fluid got a nice green color...
I also unpluged and repluged the coolant level sensor and the wire and connection seems ok.
Also, last time I drove my rx7 the warning buzzer from my aftermarker oil pressure gauge was going on from time to time. The buzzer comes on whenever oil pressure goes over 55-60 psi (which happened whenever the engine was reving higher than about 3000 rpm). I never heard the buzzer before and I was often reving higher than 3000 rpm...so, even though I wasn't looking at the gauge often, I guess it never went higher than 55-60 before... Oil temp however was normal (165-175).
maybe my 2 problems are linked together ?
thanks
Where is the coolant level sensor? I have an 88 and want to check it
Terri
#33
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I have an 86 and had the screaming buzzer issue, found this post and found the bleeder on my radiator let it warm up slightly, removed the bleed, heard air escape then water put the bleeder back in then no more buzzer.
You can see the bleeder in the pic right above the radiator hose on the corner, mine just requires a lager Philips head screwdriver to R&R.
You can see the bleeder in the pic right above the radiator hose on the corner, mine just requires a lager Philips head screwdriver to R&R.
#34
Junior Member
I have an 86 and had the screaming buzzer issue, found this post and found the bleeder on my radiator let it warm up slightly, removed the bleed, heard air escape then water put the bleeder back in then no more buzzer.
You can see the bleeder in the pic right above the radiator hose on the corner, mine just requires a lager Philips head screwdriver to R&R.
You can see the bleeder in the pic right above the radiator hose on the corner, mine just requires a lager Philips head screwdriver to R&R.
Terri
#35
Senior Member
Letting it warm up slightly allows pressure to build so the air will bleed off when you remove the bleeder screw.
#41
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#42
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I had the same issue a few months back it keeped reocuring, if it happens again check the plastic endtanks in your radior are not leaking, mine have a very slow leak that took 3months to set off the alarm again. Replaced with a new aluminum radioator fixed everything and dropped the temps too
#49
I have an 86 and had the screaming buzzer issue, found this post and found the bleeder on my radiator let it warm up slightly, removed the bleed, heard air escape then water put the bleeder back in then no more buzzer.
You can see the bleeder in the pic right above the radiator hose on the corner, mine just requires a lager Philips head screwdriver to R&R.
You can see the bleeder in the pic right above the radiator hose on the corner, mine just requires a lager Philips head screwdriver to R&R.
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