Adventure Driven Talk

Tech Questions and How-To Articles => Mitsubishi Related => Gen 2 Montero => Topic started by: Shovel on March 26, 2019, 10:36:55 AM

Title: Let's do the flashing front lights thing.
Post by: Shovel on March 26, 2019, 10:36:55 AM
OK I get it, you're new to Monteros, you just got one and it has a problem where the lights representing the front wheels in your dash are flashing and you want help on it, and all the old timers are like "THIS again???"

It does get discussed an awful lot.. like.. an AWFUL awful lot so if you stick around a while you'll get sick to death of it too.

But for now, you're new and it's not your fault, let's get this shit fixed.

It's pretty simple and it's pretty cheap if you hop to it and fix it before it does real damage..  think of it like a quick test of whether or not you should own a quarter century old 4x4 - if this is too much for you, sell it.   It only gets harder from here.    Tough love.

Let's do a quick rundown of how the 4wd system works on your Gen2 or 2.5 Montero:


So how does one troubleshoot the CAD?   I'm glad you asked. 

The following assumes your shift fulcrum ball is not disintegrated and further assumes you have some aptitude at working on vehicles, know to properly use jackstands and wheel chocks and keep your floppy bits out of moving parts,  etc...  if working on cars is all new to you,  uhh.. just be careful and don't blame the internet if you hurt yourself. 


OK so what if you put off fixing this?  That's OK?   No.. not really.   Look it's your vehicle if you want to neglect it that's on you... and if it fails from your neglect that's on you.   You're a grown up.     The deal is that when the vacuum solenoids are failing or a vacuum leak causes the CAD to partially fail during low vacuum circumstances (heavy throttle... climbing hills in 2wd)  it allows the splined CAD sleeve to slide over into itself and start grinding the splines on the axle shaft or stub shaft.   Grinding isn't good for them, they wear themselves out and the shavings from that grind go right into your front diff oil where they get into the bearings and the ring & pinion.. greatly accelerating heat and wear on those as well.   It's all not good.    You'll want to fix this sooner than later and apart from  your own time,  replacing everything is like $60 bucks if you catch it early (vacuum solenoids,  diaphragm/actuator and vacuum hoses) .. as opposed to many hundreds if you end up ruining the whole front axle.   

Title: Re: Let's do the flashing front lights thing.
Post by: Hooots on March 27, 2019, 12:18:07 PM
Ok.....so.......ever since Ernest swapped out my gears and put manual hubs the lights have ALWAYS flashed on my '97SR, but he told me it was fine and that everything was ok. I'm not educated enough to recall why the lights were always flashing but.......I'll give him call to see

ON another note. A few weeks back it would engage into 4wd just fine.......but when i went from 4H to 2wd it kept wanting to 'pop' back into 4.......is this a 'symptom' of busted fulcrum ball?
Title: Re: Let's do the flashing front lights thing.
Post by: GrantCee on March 27, 2019, 02:28:54 PM
think of it like a quick test of whether or not you should own a quarter century old 4x4 - if this is too much for you, sell it. It only gets harder from here.

Truth.

This should be required reading for everyone who wants to buy a used Montero, regardless of model.
Title: Re: Let's do the flashing front lights thing.
Post by: Shovel on March 27, 2019, 03:18:41 PM
Ok.....so.......ever since Ernest swapped out my gears and put manual hubs the lights have ALWAYS flashed on my '97SR, but he told me it was fine and that everything was ok. I'm not educated enough to recall why the lights were always flashing but.......I'll give him call to see

If he used a one piece axle from an AWD sport or otherwise eliminated the CAD, then the wiring needs to be updated.  I posted a how-to in this forum.  Takes a 5 pin relay and a little wiring to permanently solve.
Title: Re: Let's do the flashing front lights thing.
Post by: Funtero on June 15, 2019, 09:30:05 PM
This is the best write up I have ever seen on this system. Thanks you!