engine overheating?
Thread Starter
zoom zoom!
Joined: Sep 2007
Posts: 360
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From: SoCal
engine overheating?
well turns out i got the engine overheating light when i was on the 405 freeway going home from a field trip. i MIGHT have been going 80-85 constant. but anyway it flashed on so i put it in neutral and cruised off the carpool lane and it turned off immediately. i did use search but most people said it was probably coolant level, etc.
i'm an autotragic 2007. idk if this helps but im running hks hipower and ms CAI. no cooling mods done. and it wasn't even hot outside. maybe 85? anyway.. my brother said i shouldn't check my coolant level seeing as though it is pressurized. plus it felt really hot haha. i don't do much work on my car, but it would be nice to find out what the hell the problem is.
i'm an autotragic 2007. idk if this helps but im running hks hipower and ms CAI. no cooling mods done. and it wasn't even hot outside. maybe 85? anyway.. my brother said i shouldn't check my coolant level seeing as though it is pressurized. plus it felt really hot haha. i don't do much work on my car, but it would be nice to find out what the hell the problem is.
It's the coolant level light...the most likely thing is a dodgy sensor that is a well known problem.
Either check the level lots and live with it...or buy a new coolant reservoir with a new sensor....I think Mazmart has a good price on them new
Either check the level lots and live with it...or buy a new coolant reservoir with a new sensor....I think Mazmart has a good price on them new
Thread Starter
zoom zoom!
Joined: Sep 2007
Posts: 360
Likes: 0
From: SoCal
i was hoping it wasn't a bad sensor. covered under warranty?
Rotary Gr8tness
Joined: May 2008
Posts: 19
Likes: 0
From: san antonio tx
same problem
I am having the same problem with my 8 and all the oil and coolant levels are fine. it only starts to overheat when the a/c is on on a 100 plus degree day. What might my problem be?
Hot Pit
Joined: Jul 2005
Posts: 658
Likes: 0
From: Castro Valley, CA
the radiator is not cooling enough for a 100+ with the ac running. may be some part of your radiator is block, should get an aluminum radiator with a bigger core.
Rotary Gr8tness
Joined: May 2008
Posts: 19
Likes: 0
From: san antonio tx
thanks for the input guys. Ill try to see if anything is blocking coolant by flushing the radiator and adding purple ice to the radiator to see if itll be a cheap fix before i buy another radiator though that sounds like a good idea to do before the summer is over. Thanks again.
Make sure your coolant lines aren't "air bound." They occasionally have to be bled of air just as do your hydraulic lines. Of course this is much easier than hydraulic bleeding.
mine was over heating in texas due to my front licence plate blocking airflow.. once removed the coolant temp remained stable. FYI
Bleed Coolant System
COOLANT SYSTEM AIR BLEEDING
Applicable to all RX-8 Model Years
After performing repairs or modifications of the coolant system, the system must be purged of air. The following procedure will allow any trapped air to escape:
1. Elevate the front end of the vehicle.
*A steep angle will allow air trapped in system to escape easily.
2. Temporarily remove the upper (vertical) throttle body coolant hose.
3. Fill coolant system with proper mix ratio of coolant/water per workshop manual.
4. Start engine and carefully monitor coolant level, topping off as necessary.
5. When coolant begins to flow from throttle body hose, air is bled from system.
6. Carefully attach coolant hose back to throttle body pipe.
*Caution, coolant will be extremely hot!
7. Verify proper coolant level.
8. Check system for leaks.
9. Verify repair.
Applicable to all RX-8 Model Years
After performing repairs or modifications of the coolant system, the system must be purged of air. The following procedure will allow any trapped air to escape:
1. Elevate the front end of the vehicle.
*A steep angle will allow air trapped in system to escape easily.
2. Temporarily remove the upper (vertical) throttle body coolant hose.
3. Fill coolant system with proper mix ratio of coolant/water per workshop manual.
4. Start engine and carefully monitor coolant level, topping off as necessary.
5. When coolant begins to flow from throttle body hose, air is bled from system.
6. Carefully attach coolant hose back to throttle body pipe.
*Caution, coolant will be extremely hot!
7. Verify proper coolant level.
8. Check system for leaks.
9. Verify repair.
For the folks with cooling issues on hot days..
Check out the cooling related DIYs in the Congrats thread. These are all really cheap things that made a huge difference for me.
As for the low coolant light, I just unplugged mine.
Check out the cooling related DIYs in the Congrats thread. These are all really cheap things that made a huge difference for me.
As for the low coolant light, I just unplugged mine.
Registered
Joined: May 2014
Posts: 111
Likes: 3
From: Berlin Germany
It's easy to just modify the stock sensor in the coolant tank to avoid the coolant light and still have the low coolant light functionality.
If anyone is intrested in a solution i'll write a small DIY for it.
Greetings
Thomas
If anyone is intrested in a solution i'll write a small DIY for it.
Greetings
Thomas
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