2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Help: Overheated, Boiled Coolant, Low Oil

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Old Sep 11, 2005 | 11:02 AM
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Help: Overheated, Boiled Coolant, Low Oil

help aperrently my temperature gauge doesnt work my gxl overheated for the first time or well i pulld into my house n so then i could hear in boiling over under the hood and i look and the boil over tank was full and bubbleing and i checked my oil an it is reading dry and i had put 2 quarts earlier that day because it was low help i dont know what to do and this is my only mode of transpotation

oh and i replaced the rad. cap and thermostat if that helps any....

i've got to go to work...hmmm should i take my car....should i get more oil? or find a ride?.....is it safe....

(Edit...Combine three posts into one)

Last edited by Aaron Cake; Sep 13, 2005 at 04:04 PM.
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Old Sep 11, 2005 | 01:18 PM
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if it actually overheated, there is a good chance your engine is toast
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Old Sep 11, 2005 | 01:25 PM
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get a ride... have you even tried to start it since you overheated it? often times they are too low compression to start without push starting if they've been overheated good enough (usually the case if you don't see it going and shut it off)
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Old Sep 11, 2005 | 01:34 PM
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it started fine.... i have drove it around since then not far but just enough to warm up the car... when sittin hot or cold doesn't drip anything...and oil pressure 30-60 could it just be my fan clutch? how do i test to see if thats working....there is no smoke or smell or new noises... could somthing be wrong with the oil sending unit
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Old Sep 11, 2005 | 01:48 PM
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when the engine's hot the clutch fan will.. ya know.... suck a whole lot of air... if it starts fine, without any smoke in the exhaust, and you don't get bubbles in the coolant system, you may be lucky and your seals may be fine. If it does smoke alittle on startup (then goes away) but moreso if it's been sitting longer then your coolant seals are prolly shot, and if so... does the smoke smell sweet=coolant?
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Old Sep 11, 2005 | 02:14 PM
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do you have trouble hot starting? like if you let it sit for about 30 minutes? If there was alot of coolant in your overfill tank than that is not a good thing and your coolant seals could of gone which means rebuild. also, let the car sit for a few hours and check your overfill and rad for oil spots in the coolant.
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Old Sep 11, 2005 | 04:00 PM
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oil spots gotcha
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Old Sep 12, 2005 | 12:01 AM
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did u bleed the cooling system when u replaced the thermostat? you might have air trapped in there
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Old Sep 13, 2005 | 03:36 PM
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yeah i have...i just did a basic tune up and cahanged belts and fluids...onliy thing that worry me now is that my temp gauge dont work.....is there a way i can fix this...if easyer how much is a after market one...and is it easy to hook up
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Old Sep 13, 2005 | 04:07 PM
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Please see http://www.aaroncake.net/rx-7/cooling.htm for cooling system troubleshooting.

You may or may not have damaged the engine. Sometimes they aren't hurt, sometimes they die. At this point, best to do a cooling system pressure test (most mechanics will perform this for a modest fee).

As for the temp gauge, most likely the connection is bad at the sender. Check the wiring (coolant sensor location is in the factory/Haynes service manual).

You should not drive your car if it is overheating.

As for the low oil, top it up. Then make a habit to check it everytime you fill up with gas.
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Old Sep 14, 2005 | 03:57 PM
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i only have 1500m on the rebuild so i hope its fine its being fine now that i did so simple stuff
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