I have a 1999 Tacoma 4x4 with a manual transmission and a 2.7 engine.
I'm getting the tell-tale loud screeching sound at start-up -- as well as a high idle speed and a low running temperature.
Absent the screeching sound, I would assume the problem is simply the thermostat.
But with the screeching sound present, I'm thinking the problem is likely with the water pump.
However, if the screeching sound is being caused by a water pump problem, shouldn't the engine run hot, as opposed to cold?
Thank you so much,