Coolant leaking
Thread Starter
|
Junior Member
Joined: Aug 2013
Posts: 6
2003 Montero XLS - coolant leaking
My 03 Montero XLS is been leaking coolant for couple of weeks. Yesterday I finally saw clearly where it's coming from, but can't figure out what causes it (see picture). Could it be from the water pump?
Last edited by poli; Aug 8, 2016 at 05:31 PM. Reason: Add details to title
Senior Member
Joined: Oct 2004
Posts: 2,044
From: Washington State
a leak at the water pump or at the thermostat is most likely in this case. Since thermostat housing is pretty visible you should be able to tell if that is responsible. If not, its probably a water pump.
Senior Member
Joined: Oct 2004
Posts: 2,044
From: Washington State
Is your pipe cracked or just a bad o-ring(s)? You can get either one at the dealer or order it online at various Mitsubishi parts dealers. You can try Mitsubishi Parts » Online Catalog or Mitsubishi Auto Parts, Up to 70 % off | Discount OEM Factory Direct Wholesale Mitsubishi Parts Warehouse
It is not likely that you'll find these parts in your local parts store.
It is not likely that you'll find these parts in your local parts store.
Senior Member
Joined: Oct 2015
Posts: 348
From: Northern VA
If the leak is where you say it is, that is a pain in the butt. Assuming your 2003 XLS is the same as my 2002 3.5 XLS Montero Sport, you will have to remove the plenum, the intake manifold (leave fuel injection rail with injectors bolted to the manifold,) to get access to the water pipe.
The water pipe has an o-ring that slips into the back of the water pump. The pipe at the rear has tabs that are bolted down.
Post 80 of this thread, I show the water pump and o-ring, I had a new water pump and it came with the o-ring. https://mitsubishiforum.com/forum/mi...l-48920/page8/
Post 82 of the same thread you can see the water pipe.
Post 83 of the same thread you can see where the water pipe tabs bolt to the drivers head and passengers cam thrust plate.
The water pipe has an o-ring that slips into the back of the water pump. The pipe at the rear has tabs that are bolted down.
Post 80 of this thread, I show the water pump and o-ring, I had a new water pump and it came with the o-ring. https://mitsubishiforum.com/forum/mi...l-48920/page8/
Post 82 of the same thread you can see the water pipe.
Post 83 of the same thread you can see where the water pipe tabs bolt to the drivers head and passengers cam thrust plate.
Thread Starter
|
Junior Member
Joined: Aug 2013
Posts: 6
Well, I took the car to one of my friends who's a mechanic and he figured out that somewhere around that water pipe assy is leaking, so he told me to get the pipe and the O-ring.
Senior Member
Joined: Oct 2015
Posts: 348
From: Northern VA
Tough call.
If it's just the o-ring, then you could remove the water pump from the front, but that requires removal of the accessory drive and you are well on your way to doing a timing belt service. But, the plenum and intake is not removed. Then if you find the pipe is damaged or corroded, well then off comes the plenum and intake to gain access to the pipe.
If it's just the o-ring, then you could remove the water pump from the front, but that requires removal of the accessory drive and you are well on your way to doing a timing belt service. But, the plenum and intake is not removed. Then if you find the pipe is damaged or corroded, well then off comes the plenum and intake to gain access to the pipe.
Thread
Thread Starter
Forum
Replies
Last Post
thellamattina
Mitsubishi Montero & Montero Sport
77
Sep 17, 2015 10:52 AM
blitzkrieg79
Mitsubishi Outlander
11
Feb 8, 2014 07:32 PM
NiveK111070
Mitsubishi Montero & Montero Sport
2
Nov 9, 2008 10:11 AM