2nd Generation Specific 1986-1992 Discussion

Overheat and Coolant Leak

Old 02-09-2011, 04:19 PM
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I was in my 87 NA five speed driving home, having some fun but not beating on it, when the warning buzzer went off and the temp gauge was over the middle, I could smell coolant.



I pulled over and saw the there was coolant sprayed all over the driver side of the engine bay. It was pooled up on the air intake pipe and battery.



The radiator doesn't appear to be cracked or enen damaged. The upper and lower radiator hoses were connected, and the cap and over flow hose were also connected. Im going to check the drain plug and heater hose. Is there any thing else I should look for.



Should I try and strat it up to see where the leak is coming from, i'll do this after its cooled down obviously.



Any help would greatly appreciated.





Heres some picks, this is after I wiped most of the coolant off.
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Old 02-09-2011, 04:21 PM
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more pics
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Old 02-09-2011, 04:22 PM
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Old 02-09-2011, 04:26 PM
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last two
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Old 02-09-2011, 05:20 PM
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My best bet would be the heater hose on the driver side has cracked. When it does it just sprays everywhere. I know on the S5 it runs from underneath the leading spark plugs to the fire wall on the drivers side. Start there.
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Old 02-09-2011, 05:41 PM
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Originally Posted by Another_Ticket?? View Post
My best bet would be the heater hose on the driver side has cracked. When it does it just sprays everywhere. I know on the S5 it runs from underneath the leading spark plugs to the fire wall on the drivers side. Start there.




Thats it. Im ordering a replacement tonight and maybe the upper and lower hoses also.



Thanks for the help, I thought maybe I was gonna have to spend the big bucks!
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Old 02-09-2011, 05:57 PM
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I also am thinking about installing the killswitch to eliminate the need to take out the egi fuse every time my car floods, and to prevent it.



I have the 2 prong, 2 toggle switch rated to 25a, with the female connectors, the butt connectors and the 16 gauge wire.



My questions to every one is do I use the middle black and white wire on the black box with the yellow base, I tried to find a clear definition and explaintion of which wire to cut into.





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Old 02-11-2011, 08:35 PM
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Dear Blockedwizard:



Were you able to confirm the cracked hose? If that was it, you were darn lucky. Good thing you pulled over right away. I had something similar happen to me in an S5. The rotor housing broke at the coolant seal edge requiring a rebuild.



Regards,

Jeff
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Old 02-12-2011, 11:13 AM
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Originally Posted by rotorjeff View Post
Dear Blockedwizard:



Were you able to confirm the cracked hose? If that was it, you were darn lucky. Good thing you pulled over right away. I had something similar happen to me in an S5. The rotor housing broke at the coolant seal edge requiring a rebuild.



Regards,

Jeff




Thanks for the concern Jeff.



It was the heater hot that is right near the spark plugs and goes to the fire wall.



It blew at 7000rpm, after a day of getting sidewazy





Im happy it was just that, but im sure I'll be blowing up some more stuff soon.
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Old 02-19-2011, 06:20 PM
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I wasn't as lucky as you with my first fb. The same hose blew out while I was doing 90 through Denver co. All the steam went under the car and my coolant level sensor wires had corroded off so I had no warning and driving that fast I was watching traffic. When I finally did glance at my gauges I cursed everything known and unknown to man and pulled over. As soon as I got off the gas it died never to start again. A day later the awesome town of englewood towed it for being an "unsightly" vehicle.
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