The automatic transmission temperature sensor, on your 1990 Mitsubishi, is located on the top of the transmission. The sensor will have to electrical wires going to it.
The 1990 Mitsubishi Montero 3.0 V6 is listed as a non-interference engine. Replace the belt every 60,000 miles.
go to the makers web site or google
1990 will most likely be SOHC, so 12 valves.
The fuse for the computer in Mitsubishi Montero 1990 is located under the plate called fuse panel. This is where you will find the fuse.
Found it at front bottom of engine
A loose crank pully retaining bolt will make it leak.
Try calling your local wrecking yard as they have crossover books.
No such thing as a O2 Sensor Box. The O2 sensor is located somewhere on the exhaust system. Looks similar to a spark plug with a wire connected. May be more than one. The o2 sensor on my 1990 Mitsubishi Mirage 1.5L (same engine as the colt i believe) is on the exhaust between the manifold and the catalytic converter
no, but heres a list of cars with the same style engine as your lebaron, not saying theyre exactly the same, wiring is probably different, but the basic engine is the same, from wikipedia * 1990-2001 Mitsubishi GTO (aka Mitsubishi 3000GT, Dodge Stealth) * 1989-1995 Plymouth Acclaim/Dodge Spirit * 1987-2000 Dodge Caravan/Plymouth Voyager * 1990-1993 Dodge Ram 50 * 1988-1989 Dodge Dynasty * 1988-1990 Dodge Raider * 1991-1996 Dodge Stealth * 1987-1995 Chrysler LeBaron * 1989-1991 Chrysler TC by Maserati * 1988-1989 Chrysler New Yorker * 1990-1993 Dodge Daytona * 1989-1994 Dodge Shadow ES * 1992-1994 Plymouth Duster * 2000-2005 Mitsubishi Eclipse * 1991-1999 Mitsubishi 3000GT * 1999-2003 Mitsubishi Galant * 1988-1990 Mitsubishi Sigma * 1990-1998 Hyundai Sonata * 2001-2005 Dodge Stratus/Chrysler Sebring Coupe * 1990-2002 Mitsubishi Diamante * 1991-1996 Mitsubishi Verada (Australia) * 1993-2002 Mitsubishi Magna (Australia) * 1990-2006 Mitsubishi L200 * 1990-1996 Mitsubishi Mighty Max * 1988-present Mitsubishi Pajero (aka Montero/Shogun) (Japanese and Middle East markets) * 1998-present Mitsubishi Challenger (aka Montero Sport)