My 2000 ford ranger winshield wipers, dome light, speedometer and door chimming stopped when i took a pair of pliars to take the fuse out of the dome light.

SOURCE: 1997 ford ranger, guage cluster lights,dome light,

It almost sounds like a fusable link,check them you will find them somehere on the fender or the intake mainfold,when you find them if one is bad it will be very soft in the middle cut it out and reolace it.

SOURCE: 2001 Ford Ranger Extra Cab windshield wipers don't

WOW that is strange. Get your self a test light or a cheap multimeter. Take the + wire off at the wiper motor and check if you have voltage / power. If you do then the problem is with the wiper motor if you don't it is the wiring or the switch. I know, not a complete solution but it cuts your problem in half :)

Good Luck

SOURCE: changed the heater core in 2002 ford ranger, now

Why did you buy a switch? Did the original one meter out bad? Never replace any part till you understand how it works and how to test it. Work the wipers and the lighting issues as two separate problems. The wiper motor or relay etc may have failed around the same time as the heater core. Two separate things Unplug the wiper motor and turn the key on. Meter out the connector in different switch modes. Need a schematic of the circuit. Lights-- Problem is after the fuses and they are the start of most circuits. so you know you have an open circuit like a connector under the dash you disturbed unknowingly during the heat core deal or a loose ground wire.

SOURCE: 2000 Ford Ranger XLT Automatic trans. 4X4 3.0L

Check your operator's manual. Make sure any and all fuses that have anything to do with the affected items are not blown and are working properly. If you can; check for loose fuse connections or wires. Hope this helps. God bless!

SOURCE: door ajar light stays on and interior dome light

spray the door latches with a good penatrateing oil slam the doors sevral times thier is a switch in the latch that sticks