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Discussion Starter · #1 · (Edited)
Changed the EGR valve today.
Just as a PM, no issues yet @ 60k miles.
Did not look as bad as I expected.
Cruze has had only Dexos-2, changed every 6k miles.
Dieseldr

MOD - just discovered I posted this in the wrong forum - please move if possible
cruze_egr_valve
 
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Discussion Starter · #3 ·
Will do!
 

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2014 Cruze Diesel, 2007 Cobalt, 1981 Camaro Z28, 2017 Volt
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Ours wasn't awful around that mileage, but it definitely was getting sticky. The intake manifold (what I could see) looked absolutely terrible.
 

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Discussion Starter · #6 ·
Recently had a BMW 335D. (6 cylinder dual-turbo 3.0L Diesel)
Intake ended up filled with carbon deposits, swirl valves having problems.
Under extended warranty, BMW walnut shell blasted the plastic intake manifold runner internals, worked great after.
Not sure this is an option w/ the Cruze, but the cost of a replacement intake is around $1k, as far as I can Google.
Wonder if I could find a used intake, Walnut shell blast it clean and then do a swap?
Dieseldr
 
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I cleaned my EGR and replaced the map sensor in the intake. I am not really worried about what could happen with the deposits. I am aware but not concerned about it. We have members with 200k miles with no real intake deposit issues, will deal with it if it happens.
 

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EGR + oil vapor from the PCV system is the real problem. The soot and oil combine to form a plaque, it forms on the intake tract and that is what you guys are seeing.

If you can install an oil seperator or filtered catch can on the PCV system, like the MANN Provent, then the soot by itself becomes much less of a problem for the intake. IDparts has the provent and a spare filter for less than $170.
 
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