20 Most Recent 1993 Toyota Previa - Page 4 Questions & Answers

This is likely your spark plug tube seals. They come with valve cover gaskets because you will need to replace both in a job. You should also probably replace the spark plugs themselves, as the ends are probably fouled.If you are interested in doing this job yourself, I would suggest going down to your auto parts store of choice and purchasing a repair manual for your car. Haynes is the book of choice, typically. It will show you pictures of the valve cover being removed.

valve cover gasket set it has o-ring type gasket around tube built into vavle covers fel-pro makes a good kit

check your crank pulley,possible the rubber which is used on it cracked and on loading the ac knocks,or check the tensioner of the ac belt,or the ac compressor the pulley of it.

Ask for Haynes Manual for you toyota.

Under the bonnet

unplug it and if you dont no how clarify what kind of system it is

There is in most cases only one reason for this and that is that the engine cylinder head gasket is leaking between the 2 cylinders.

Shouldn't be a problem unless you encounter exremely cold weather.

If you are lucky you blew a fuse. Look for fuse box cover under driver side. Removed on fuse at a time and see if the wire in the middle melted.