You can remove it and place it in a pan of hot water and see if it opens at the proper temperture, but why do that. Once you have it out, just replace it with a new one and you know it is good then. An 15 year old thermostat is more than likely bad. Considering you have to drain the radiator to a low level to remove the thermostat, do a complete cooling system service at this time.
Yes
You can find wiring diagrams for this vehicle at www.autozone.com.
actually I broke the hood release latch on my 1991 Plymouth voyager, and I can't get the hood open, what can I do?
A 1991 Chrysler Voyager can use ATF+3 or ATF +4.
there isn't one
The flashed in a 1991 Plymouth voyager, is generally located in the driver's seat. They would normally drive round wearing a large over coat, and flash his penis at passers by.
8 qurts
go buy a ball joint sperader at any major parts dealer
i do not believe there is a thing on this vehicle
No vacuum change at the MAP sensor.
No I don't think so.
I believe its 40 ft lbs