Nertus

I happen to have this problem with my 94 ES300. The transmission shifts fine all the way up to third gear, and then doesn't shift anymore. Weather or not the overdrive button is on or off, I only have 3 gears. I am cruising around 65 mph and at 4,000 + rpms. I've also noticed my ECT/Power light for the transmission comes on at random times. Before attempting to open up the tranny, are there any common sensors that fail? The car doesn't even attempt to go into fourth/OD, it acts as if it were a 3 speed auto. Thanks.

Hi all, I picked up a 94 ES300, under the impression the head gasket was on its way out. I drove it home and it didn't overheat. I let it idle for an hour, and it didn't overheat. I drove it around some more, and it still has yet to overheat... I checked the oil, and there aren't any signs of coolant/water mixture. I don't smell and leaky coolant either. The previous owner told me she stopped using it in July. After dumping big money into it (timing belt, t-stat, water pump, new accessory belts, battery brakes, tires) all in one shot, he mechanic said it would still run hot because the head-gasket was shot. It is now very cold in december and I can't get it to overheat. What I do notice is that the fan only spins at one speed. No matter if the A/C is on, the car is completely cold, or it is at normal operating temps, the fan spins slow enough that I can stop it with my hand and not get hurt. My question to you veterans, what tests can I do to prove my theory that it is the fan??? The solenoid under the power steering pump is plugged in.. I still have power steering, so I don't think its my pump. Should the fan always be moving, or should it stop, and rotate very fast when its intended to?? Thanks in advance for the help.