Try replacing the thermostat.
If it's just occasionally, it may be a sticky thermostat.
yes, interior changes happen post 2000.
when it slips or grinds
I have good news for you. All 2001 Toyota Tacoma 4 cylinder engines cam are driven by a Timing Chain and no replacement is necessary. The Toyota Tacoma V6 has a Timing Belt that must be replaced every 100,000 miles. It is an interference engine so it is critical that it be replaced on time.
Toyota Tacoma was created in 1995.
There is no inertia switch on a 1998 Toyota Tacoma..
Where is de fuse for ac the toyota tacoma 1998
Where is the oil sensor on a Toyota tacoma 2003
The 2013 Toyota Tacoma has 16 valves.
The 2004 Toyota Tacoma has 16 valves.
The 2007 Toyota Tacoma has 16 valves.
The 2012 Toyota Tacoma has 16 valves.