Question about Mitsubishi Montero Sport

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1997 montero sport 3000 24valve v6

1997 monterosport: 3000 24valve v6. motor ran hot and shut down. motor cooled and restarted. smoke came out of drivers side timing belt cover and motor rattles from the opposite side. need help diagnosing problem and was the overheating caused by possible timing belt issue. is the likelyhood of catastrophic damage enevitable?

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The most likely senario is that the water pump went bad which caused the overheating in the first place. Then after the engine shut down, the water pump seized up. When the engine was restarted, the timing belt started to smoke because the water pump, which runs off the timing belt, was not turning. Since the engine overheated to the point of shutting down, blown head gaskets are a possibility. Put a new timing belt and water pump on it and start it up. If it runs OK, you're good to go.

Posted on Jul 26, 2008

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Posted on Jan 02, 2017

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1997 montero sport ran hot and now is rattling and idleing very rough. this is a 3000 24 valve v6. smoke started to come up through the drivers side timing belt cover and the rattle is on the opposite...


HI....
The cause of the engine come Overheat.
The WATER PUMP. on your car Is driven with the TIMING belt.
My solution is :
Don't drive more Because if the TIMING belt when Broken.
The HEAD VALVES can be damaged. Be careful.
Get the car to a Autorepair SHOP. or if you can do yourselft.
REPLACE the water pump and the Timing belt.
And check all the pulleys after you remove the covers and timing belt.
Inspect the SEALS replace if need.

If you need assistence to do yourselft.
I can give the info.

I hope this help on your problem.

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I was driving down the road my truck started too lose power and it shut off.. i crunk it back up then started back down the road and it died . i have a brand new battery with 800 cca and it could barely...


Sounds like a cooling issue. When the engine overheats it will get so hot that the metals expand making the motor sieze. When the engine gets that hot it thins out the oil making it less dense. This will make the oil thin thus reducing pressure.
When the motor restarts after cooling you will find the oil pressure returning to 40psi
The slow cranking issue is due to the engine being hot/siezed. Theadgasket damange, valve/piston dehere are other reasons for this condition to exist, but with the engine reaching 260 degrees, I would contribute it to the overheating problem.
Quite often when a engine overheats to this extent, it can cause other serious problems; ie, head gasket damage, valve/pistion deformation crack raidator and so forth , good luck

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Where is the water pump located?


If its a 4 cyl. it is pass side front of engine on side down low. have to get at from bottom. If its v6 it is on the iside of timing belt assembly and runs of of that system must pull covers off to get to.

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Friday it sputtered and shut off 2 times the thrid time I started it I gave it some gas and it drove for a few feet then started sputtering and smoking from the right side of the engine. I pulled over...


Have the water pump checked. The bearing maybe seizing up causing the pulley to jam and smoke up the belt. Also as the motor got hot from pump not spinning, may have caused the motor to shut down as an overheating precatuion.

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have u replaced the radiator and hoses? Thermostat could also be stuck open. Water pump could also be your issue. with motor cool and of remove radiator cap(cap may be bad as well) top-off fluid and start car check for fluid flow with flashlight. Water pumps typically leak from what is called a weep hole when the shaft seal fails. Yours will be located under the timing cover (drivers side) running of the timing belt.
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definatly crankshaft position sensor, had same problem hour ago and changed it and started right up.. crankshaft positions sensors are known to cause this problem, stays open circuit when hot.

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1 Answer

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hi--have the timing belt checked-- just remove the cover on the left side of the motor or #1 end and turn it over to inspect the belt--cheers

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