Repairing the SCV Suction control valve

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Re: Repairing the SCV Suction control valve

Postby MrCozy on Sat Feb 16, 2019 10:18 pm

I'm guessing I'm going to have to look at mine soon, as I'm having some idle hunting when first start up. My main question, or 2, here is...I'm understanding the longer version will work if have shorter version currently? Mine is a 3.2l, which seems to be the pink one, which is about half the price of the blue one, But I prefer to go whichever is recommended to be the more reliable trouble free version. My second question refers to SQL...when I first bought my Triton, secondhand, few months ago...it had to have some major work done..Timing chain, guides, tensioners, and 3 injectors...secondhand,on the injectors, but all tested for proper operation...but this was not done by Mitsu, so I'm assuming, by what I've been reading, that an SQL reset most likely, wasn't performed. So from what I've been reading, this should be high on my priorities to get done?
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Re: Repairing the SCV Suction control valve

Postby Longranger1 on Sun Feb 17, 2019 5:08 pm

The ecu will periodically perform an sql without any intervention. Not sure when or how often but mine did after doing valve clearances. Battery was removed for that job so possibly if it is disconnected for a while it will do an sql. I wouldn't stress over it.
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Re: Repairing the SCV Suction control valve

Postby RHKTriton on Sun Feb 17, 2019 6:49 pm

I read somewhere ( possibly service manual) that if you leave the engine idling for about 15min, it will do a self SQL, where you'll hear the engine hunting until it settles to a steady speed.
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Re: Repairing the SCV Suction control valve

Postby MrCozy on Fri Feb 22, 2019 9:31 pm

That’s good to know, thanks. Now back to my first question, which scv for 3.2l? Most I see listed on eBay are the pink ones, but will the blue one work?


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Re: Repairing the SCV Suction control valve

Postby RHKTriton on Sat Feb 23, 2019 8:38 am

Used the pink one in both our ml and mn and running fine.
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Re: Repairing the SCV Suction control valve

Postby mowerman on Sun Mar 10, 2019 11:22 am

2008 ML.
Bought it 3 years ago with 120k on the clock. Now at 160k and recently starting to surge under load but only just noticeable in 2nd.(auto).
Swapped out the SCV today. Battery out and a bit fiddly but took about 40 mins.
Used a hex drive bit in a 1/4 inch socket on a ratchet.
Idled fine. Took it for a run and went into limp mode. Engine light and wouldn't rev over 1500.
Turned off then restarted and away it went. Flat out but still with engine light.
Used the Torque app and cleared the "Suction control valve stuck" fault code.
Went for another run around the block and ..Holy crap...
This thing is now accelerating as good as my old 05 xr6.
So this is what these turbo diesel are supposed to run like?

Rod
.
Edit..Used the pink one.
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