How do i fixed the Mitsubishi Montero 2000, when i run the engine in few minutes the engine will stop and A/T TEMP. appear on the dash board and won't start again.

The rheostat is the little dial on the dashboard that alters the brightness of the dash lights. It isn't under the hood. If your turn it all the way down until it clicks, it will turn off the lights. It will be in your manual.

https://www.google.com/search?q=2000+mitsubishi+montero+sport+manual
https://mitsubishiforum.com/forum/mitsubishi-montero-montero-sport-14/no-lights-dashboard-34680/
https://www.google.com/search?q=2000+mitsubishi+montero+sport+dashboard+lights+not+working

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The engine control module appears to be, passenger side, under the dash on the kick panel. If we're talking about the same thing. good luck

Fix your car right away by clicking the link I attached
MITSUBISHI MONTERO SPORT SERVICE REPAIR MANUAL 1999 2000 2001 2002 DOWNLOAD

This sounds like a wheel balance problem. A local tyre depot will fix in minutes. Try this first before you pay for expensive suspension and steering fixes.

does your key have a chip some cars do and if it does not recognize will not start suggest you go Mitsubishi and ask help

Hi, please check your brake fluid reservoir. Please see my tip at http://www.fixya.com/cars/r6004281-brake_indicator_light_stays . These are genericinstructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

2003 Mitsubishi Montero Limited. 97k miles. Temp gauge is erratic when actual temp is normal. How do I fix this?

nothing to much to worry about.this is quite normal to many ingines. it may be gum build up, making a valve or piston ring stick. inexpensive first thing to try, run some engine restorer in the oil, one that say s it removes cabon and gum from engine, like wynns.follow instructions on can. you will see all the crud come out of the oil when you drain it.

you may have overheated engine and not known it because if no water is present on temp sensor it will not show hot sounds like overheating of bearings in lower end possibly major engine repair may be needed

Sounds like the thermastat is stuck closed. The water in the engine would get very hot while the radiator remains cool.Don't drive the car this way as serious engine damage will occur.