Tracker Complete J18 Swap with Caveats

[Rajire]

the 1.8L thermostat must have that rear of housing, bypass hose /pipe working or the thermostat goes wild (crazy)
the flow is also backwards.
that hose is part of the dash heater, so make sure that is all hosed up right or the thermostat will go nuts.

see my 1.8 page on this topic

Yeah, I found out that stuff the hard way with a different Sidekick Sport I owned a few years ago.