2001 Montero Sport 3.0 Overheating on Grades - Mitsubishi Forum - Mitsubishi Enthusiast Forums

Mitsubishi Montero & Montero Sport This sport utility vehicle offers more size than the other Mitsubishi SUVs, but manages to keep a sporty look and comfortable feel, unlike many larger SUVs.

Thread Tools Search this Thread
Old 07-08-2018, 12:05 PM
Junior Member
Thread Starter
Join Date: Oct 2017
Posts: 3
Default 2001 Montero Sport 3.0 Overheating on Grades

Have a 2001 Montero Sport 3.0 that is overheating on uphill grades after 20 miles or so.

Have already replaced all belts, radiator hoses, water pump, thermostat, temperature sensor. Did a coolant flush and running new coolant. Not losing coolant and appearance is normal.

After 20+ miles going up moderate grades (CO front range) the temp gauge slowly heads up from the middle of gauge to the max. Bought a dongle to plug into computer to get an accurate temp readout using OBD Fusion on a Kindle Fire. It is hitting 240 degrees and up to 250 degrees on steep hills. This is with ambient air temperatures of 60-85 degrees. So it isn't the temp gauge issue.

Pulley driven fan behind the radiator seems to be functioning correctly. Electric fan in front of radiator comes on with A/C when parked.

Any ideas on what to check next? Radiator? Fan Clutch?
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
2001 Montero Sport 3.0 a/c, auto overheating oldslowguy Mitsubishi Montero & Montero Sport 0 07-13-2014 05:05 AM
2001 Montero XLS Overheating Mivecmagic Mitsubishi Montero & Montero Sport 13 09-01-2013 07:04 AM
2001 Montero 3.0 Overheating badly.. cthj Mitsubishi Montero & Montero Sport 1 08-24-2012 06:40 AM
2001 Montero LTD overheating relisiii Mitsubishi Montero & Montero Sport 12 03-27-2012 11:52 PM
2001 Montero OVERHEATING HELP? tomek Mitsubishi Montero & Montero Sport 3 11-01-2006 04:32 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 07:42 AM.

© 2018 MH Sub I, LLC dba Internet Brands
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.