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1989 Toyota Supra Questions & Answers
Well my 89 Supra has had many aftermarket items
The P/windows will have relays in the box under the hood. Instruments should be 15 amp fuse in panel inside the car under the dash. I strongly recommend a Chilton manual for this car.. It is very complicated.....
Blown Head gasket (1989 Toyota Supra Turbo)
I think you have a bad head gasket too. It's leaking coolant into the combustion chamber. If you pull out your spark plugs one at a time you will find one plug that is very clean. That's because when the coolant vaporizes, it gets the combustion chamber very hot, thus cleaning the plug.
You must replace the head gasket. I would think you could get it done for $1000.00 at an independant shop. Call around to several shops to get estimates.
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