I have a 1986 Toyota Camry LE 2.0 Automatic Transmission. It has 187,000 miles on it. My engine performance is ok on level roads even though it has a slight power sag on acceleration. And my temperature gauge is below half way. But when I was driving up on long mountain roads even with a 3 percent grade my car would go from 70 mph down to 40 mph. I downshift to 2 on the auto trans but even then it barely speeds up or just maintain 40 mph. Tachometer goes up to 5000 rpm. The temperature gauge goes up to 3/4 but not to the hot area. Transmission doesn’t slip but when it shifts up on the grade it’s very hard. When I go downgrade it cools back down quickly. I had the timing belt and water pump replaced along with the thermostat and radiator. And the radiator flows good. I don’t know whether it’s the nature of a 95hp engine or there is something definitely wrong. Engine does run great has good idle. I guess I’m just comparing newer camrys that could go up those grades faster than mine. Thanks for any advice.

Also I’m hoping I don’t damage the engine at such high rpms. It sounds like its about to fly apart revving it like that.

Yeah the fans work. Both of them. No engine misfire. I do notice that when I take off on level ground that the engine immediately sags on power a little then picks up speed. But it’s only very slight

ok I will check into that thank you

. Ok. I have noticed are both fans supposed to be two speed fans? I noticed that when the engine is warmer than normal both still run at a slower speed. I thought that they usually run at a faster speed when the temperature exceeded a certain range.

yeah. If I crack open the heater setting the temperature gauge goes to normal pretty quickly. I checked engine timing and fuel pressure at a mechanic shop and everything is in specs. I don’t know if the radiator fans are two speed or not. I also noticed that it has 3 fan relays. The number one and two fan relays are too hot to touch. Number 3 is cold. They are all metal covered relays