Question about 2002 Mitsubishi Montero

1 Answer

Still Pegged at Max Hot even with new Tstat

Any other ideas on fixing the temperature gauge problem on the Montero? Could it be a bad temperature sensor?? Water pump?? Just throwing out ideas???

Posted by on

  • ozone1963 Jul 13, 2008

    2001 Mitsubishi Montero temperature guage on max while engine is running: I took it to MIDAS six months ago for problem and was told that the head gasket on passenger side was leaking and that was causing the probblem. (The cooling sytem check that they performed was OK.) The head gaskets, timing belt, and thermostat were replaced. The problem did not go away. I was then told that it was one of two temperature sensors and that a Mitsubishi dealer would have to replace. I was assured that the cooling system was working properly, even though the guage continues to read at max. Service engine light came on today and stayed on. The odometer reads 87,100 mile. Might the two be connected?

  • Alex_Tx_LDO Dec 11, 2008

    Hey everyone, well seems i have a very similar problem replaced the thermostat and still my engine heats up bad and starts to turn off on me and wont accelerate only when hot though. i also fixed a coolant line that busted at the bottom, how would i go about checking the pump and radiator cap ? thanks for the help

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 405 Answers

Good Day again,

Sorry to hear it wasn't the thermostat, Other possible causes inlcudes low coolant, water pump and or waterpump belt, radiator blockage, and radiator cap not maintaining pressure. Check you coolant level first, fill if it's low, typically if it was the pump you would devolop a coolant leak as the pressure builds in the pump assembly. Check the belt though, any squeaks while running? Also if the seal in the raditor cap is bad then no pressure can build. To test the pump remove the raditaor cap (ensure the motor is COLD!!) and start the motor w/o the cap installed, watch the coolant level as it is should be going down slowly as it pumps through the system. Also check the seal on the raditor cap for any cracks's or visible damage.

The temp sensor is a possibilty but a rare one at that.

Hope this helps again

Posted on Jul 05, 2008

  • Patrick McGee
    Patrick McGee Jul 05, 2008

    Is your check engine light on?

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Temp gauge on 1986 s-10 blazer 4x4 2.8 stays pegged on hot. on or off doesn't matter. i have replaced sender and sensor. any ideas?


Could be a short in the cluster, but its probably a faulty gauge. It should move when you cut off power.

Aug 30, 2014 | Cars & Trucks

1 Answer

Temp gauge on 1986 s-10 blazer 4x4 2.8 stays pegged on hot. on or off doesn't matter. i have replaced sender and sensor. any ideas?


If you replaced everything back to the guage itself, then it has to be the guage itself. I would try getting a replacement instrument cluster at a salvage yard.

Aug 30, 2014 | 1986 Chevrolet S-10 Blazer

1 Answer

My 2003 Saturn VUE is saying that I'm over-heating (both the warning light stays on, and the gauge stay pegged hot) even after my car has been sitting in the driveway for 2-3 days (or longer). There is not...


i'd change the engine temperature sender unit , or just disconnect it for a while and see if the gauge symptoms disappear , if they do then change the temp sender unit,if the symptoms remain i'd say get the OBD codes read as may have a faulty dash component

Jul 04, 2014 | 2003 Saturn VUE

1 Answer

2002 temperature gauge always on hot all the way up and its not hot


the temp sencer,in engine block is tweeked pegged ,u need it replaced.

Feb 25, 2013 | 2002 Mitsubishi Montero

1 Answer

I had a water leak on my 1996 GMC K1500 and ran hot. Fixed problem truck running good, but the temperature gauge is pegged high even with a new sensor. How do I fix the gauge?


Pull off the negative battery cable and unplug the sensor. See if the gauge needle returns to normal. Try tapping on the cluster to unstick the needle. No luck? Replace the temperature gauge.

Oct 23, 2012 | Cars & Trucks

2 Answers

The fuel and temperature gauges are pegged out on my Suzuki samurai. The fuel gauge is always pegged out and the temperature gauge is low when first started then goes to max temperature in about a minute....


I just had a similar issue with my 1995 Buick century. My issue started out with the gage being almost pegged with the car off. When I turned the key to run it pegged the gage completely. I first called AutoZone and they told me it was either the temperature sensor, thermostat, or gage.
I knew that my thermostat wasn’t bad because I replaced it a while back. I then checked my sensor; I unhooked the two pin connector of this sensor at the block and suspected the needle to drop to zero. This was not the case.
I then checked my wires using a multimeter to verify that there was no short at my firewall. My wiring was fine.
I then called a family mechanic and he instructed me that there is also a "temperature switch" that also is interconnected to the coolant temperature gage. I then found this switch which was threaded into the block near the firewall of my car. I unhooked the 2 pin connector and suspected that the gage would return to the neutral position. And sure enough it did!!
This could have been a heck of a lot easier if AutoZone could have told me that my car has a "temperature switch". But non the less it was only a $15 fix!

First try unhooking your sensors and switch to see if this is the problem, I would lastly suspect your gage to fail!

Good Luck

Jun 26, 2009 | Suzuki Samurai Cars & Trucks

1 Answer

Gages


Hi again,

Did the negative battery terminal removal able to reset the instrument CPU?

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Aug 19, 2008 | 2002 Mitsubishi Montero

1 Answer

Have you repaired the temp gauge issue


I have a 2002 Mitsubishi Montero Limited. The other day the temperature gauge went from normal temp to Max HOT. The radiator is still cool enough to touch, it is not boiling over, and there is still coolant in the resivour. The gauge would go back down to normal in a few minutes, but now it immediately climbs to Max Hot within 1-2 minutes of turning the car on.

Jul 22, 2008 | 2002 Mitsubishi Montero

1 Answer

Still Pegged at Max Hot even with new Tstat


Glad to hear the water pump is working!

Have you checked the seal of the radiator cap?

Another possibilty I forgot to mention is the fan clutch. This is what engages and disengages the fan. If it is working you should hear a 'click' sound as it engages and disengages.

c39c3b5.jpg

Jul 05, 2008 | 2002 Mitsubishi Montero

4 Answers

Temperature Gauge Is Pegging at HOT


Same problem on 2002 Montero XLS. Since manuals are impossible to acquire, I subscribed to ALLDATAdiy.com (not as good as a Haynes or Chilton's, but better than nothing). From there I was able to get the resistance tolerances for the gauge sending unit and computer temperature sending unit.

The temp gauge sender should have a resistance of 73 ohm at 176 degrees. Since the thermostat is 180, I figured once the engine warmed up, it would be close to that value. The resistance started out at ~700 ohms and gradually dropped to 50 ohms and was still dropping. But it had no wild fluctuations, so assumed it was ok. The computer temp sending unit has a resistance of .26k ohms to .38k ohms. It was rock solid at .24k.

Initially I had replaced the thermostat prior to finding this thread regarding the CPU board problem. Now after checking the resistance, I still wasn't confident that the gauge sending unit was ok (dropping down to less than 50 and still dropping - who knew how the firmware was programmed to translate that data?). Therefore, I went to Carquest and got a new gauge sending unit. Put it in and as you can expect, the problem is still occurring. However, the resistance value of the new one is a rock solid 59.4 ohms. So I question the reliability of the other unit, even though it didn't fix the problem.

AllDATAdiy also mentions a multi-function thermal sensor/switch. Unfortunately, the site does not show where this sensor is located, so I cannot even test.

At this point, I do not feel like taking it in to the dealership and spending money to have my dashboard sent to Michigan (bad design in my opinion that they can't reset/recalibrate at dealership), so I'm going to just buy a separate temperature gauge to mount under the dash. At least I will have peace of mind on the actual temperature. Although I have a feeling at some point in the future I will be replacing the circuit board in question since other gauges in the cluster will probably begin flaking out as well.

Jul 04, 2008 | 2002 Mitsubishi Montero

Not finding what you are looking for?
2002 Mitsubishi Montero Logo

252 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6880 Answers

Are you a Mitsubishi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...