Headgasket problems I have a 1990 toyota supra with a blown headgasket, what is the best way to replace it?I have a manual for my car, and should I buy oem or aftermarket?.

Visit the on-line store, know as reliable-store, they have the repair manuals. I'm sure you will get the solution of your problem.
TOYOTA CELICA SUPRA SERVICE REPAIR MANUAL 1986 1987 1988 1989 1990 DOWNLOAD

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1990 toyota supra factory service repair manual PDF DOWNLOAD

check that the water pump is working, if the top hose is hot and the bottom radiator hose is cool then the water pump needs replacing

no idea try asking at the dealers is possibly the best bet

The big issue with these supras(I have one) is that the head gasket blows. Check for any white smoke from tailpipe or bubbling in the coolant overflow tank, or rough starting, those are signs i've had. I've also had trouble with my radiator/overheating, so doesn't hurt to double check that. Supraforums.com and Supramania.com are great sites too. If you ever redo the headgasket, do it right, that means quality headgasket, Felpro, or even better, metal headgasket, inspect/resurface the surfaces, and 75 to 80 lbs or torque on those headbolts.

the best thing for you to do is stop by your local library and get your hands on a Haynes auto repair manual for your car or any Autozone or Advance auto part store to buy one or Haynes North America,Inc.,861 Lawrence Drive,Newbury park,Ca 91320.(805)498-6703 wish you the best of luck Michigan Man.

you can give these websites a try its www.autozone.com and www.alldatadiy.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car wish you the best of luck Michigan Man.

You are going to need a repair manual for your Supra before you start. I have one in my shop right now for another problem and I took a look under the hood. I wouldn't try it without one. The manual will give you the step by step with pictures.

There are seals that can be replaced, but if it is noticeably leaking, then you are likely going to need to replace the rack. It can be time consuming but it is well worth it. Replacement racks can be found either in other Supra's or you can find rebuilt ones online, those, however, usually require you to send yours in.

Check your freon level the pressure switch will not allow the compressor clutch to engage if the freon level is low.