Re: 2000 mitsubishi overheats when standing still okay...
Make sure coolant is full. Check and see if fan turns on at a little above the middle of the gauge or if it overheats check to see if the fan is running. if not check fuse, if fuse is not blown , you may need a new fan motor check connections and wiring around fan. the piece where the wire plugs into the fan can go bad too.
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Sounds like you're on the right track.
If you know where the fan switch is, check for power on the supply side.
It's also possible that the fan is not working so I'd be checking that out too.
The easiest way that I have found to do this it to find the clutch slave cylinder, look for a release bolt or something that looks like a grease fitting, have a friend fill the clutch slave resovior with brake fluid, and loosen the release bolt. Tell them to pump a few times and then hold the clutch pedal until you see fluid shoot out then close it, repeat the process, untill there is no air in the lines
Although the 4 cylinder is too underpowered to have air conditioning in my opinion, it still shouldn't overheat within 10 minutes unless something is wrong. If your Jeep doesn' not overheat when you are driving WITHOUT AC on then your compressor might have a problem and causing the engine to work too hard to turn it.
But if it overheats without the AC on, then the first thing you need to do is check the cooling fan and see if it operates! There has been a lot of problems with the cooling fan relay on this model. If that isn't it, then move to changing the thermostat and checking the water pump.
Could be a bad thermostat if it stays closed it will overheat quickly.A bad cooling fan will overheat the car at idle but not while driving.A bad radiator act the same as the thermostat may be better at higher speeds.A water pump will usually make noise.Bug parts or debris clogging the radiator will be self evident.Air in the cooling system will usually make the overheat come and go. A bad coolant sensor can tell you the car has overheated when it actually has not. Just some things to look at.
The probable causes are: 1. The drive belts are slipping. 2. The drive pulleys for some engine accessories are misaligned. 3. You have turned the steering wheel to the limits. 4. The drive belts are loose.5. Your brake drum backing plates are rubbing against the brake drum. The brakes also might be a problem. check the brake drums/discs. Finally check your wheel and wheel alignment.
Be gentle with my rating. I am a long ways away. It sounds like a fan belt. You should pop the hood next time and see how it sounds when you have the squeeling going on. Fan belts will squeel until the get warmed up and then stop because the heat makes them grab the way they are ment too. Let me know, Raz
Replace the engine and transmission mounts. Replace them with urethane mounts, they cost a little more but last a lift time of your car and will ensure the engine will not move around to much in the engine bay. Good luck and be safe..