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as for consumption prior to this: blowing/spraying out the PCV from the outside seemed to have at least unblocked the dirty side because the intake resonator box & throttle body were still clean/dry when i took it apart. the little 4oz catch can i installed has been filling up within 200~300mi...

the truck gets to sit for almost a week with its brain exposed. i pulled our valve cover yesterday & spent ~2hrs cleaning it out. clearly the previous owner cheaped out on oil changes - that junk was caked up bad... even after two BG engine flushes + a can of seafoam for 300mi in the oil...

got the catch can installed about a week ago but ain't got around to doing a write-up yet (because there ain't no info on this board about them).

weird... not sure why it won't let me edit the previous post. :confused: i was just going to add that i've searched high and low for a 3.7 valve cover (12603876 and/or 12631008), and everywhere i've found that even lists them is out of stock & can't order any more. ...okay, i stand corrected...

we have a 3.7 in our 2009, and i saw a lot of Colorado guys note that the 3.5 valve covers do not interchange.

i'm a manual guy in everything... but from stuff i've read: i understand you can use the 2006 4L60E and swap in a 07+ input-shaft/drum with I.S.S reluctor, and add the I.S.S sensor plus 07-08 trans internal harness. i've read some 2006 4L60Es had the location for the I.S.S in the pump, others...

because i got conflicting, incomplete, and sometimes inaccurate data when searching for confirmation of the correct answer. since providing those clarifications simply followed up on the OP's question, it made more sense to consolidate the info here rather than starting a separate thread -...

just replaced a cracked heater core outlet fitting. should hold coolant from now on & stop spraying it all over the cat / O2 sensors

right out of the book

and the heater core itself is 10397108, in case that helps anybody find the diagrams.

for posterity, i was able to determine a couple things this week: 1) pictures of 06-08 engine bays look to all have crimped hoses on the heater core inlet and outlet... but janky as it seems, YES, my clamped outlet hose is factory for the 2009-2010 models (keeping the crimped inlet hose). this...

right on!! looks ready to expertly navigate the deepest drainage slope in the parking lot

i looked around: most places were out of stock or for the 3.5

i'd reckon the advantage to the 8pin plug is that the BCM already accounts for that signal & wouldn't think nothing of it. ...but then again, that's also the purpose of the blunt-cut wires in that general vicinity. i added OEM grille lights / wiring, and the GM instructions simply had me tie...

hmm... this still an option?

looks like nobody ever actually produced an answer here: what size quick-connectors go on the firewall, and can you just replace the connector or do you have to replace the entire hose? parts stores were no help, but the closest info i can find brings two possibilities: both indicate 3/4" on...

PS: this will in no way fix the consumption problem. it simply prevents it from dumping all that oil into the combustion chambers. in the mean time while i gather the catch components, i'm going to run both PCV bungs in a road draft CCV setup, which won't cause a lean condition or CEL because...

they don't make manual trans electrics (aside from one Wrangler concept)... and there are VERY FEW places to charge anywhere near us - so my wife won't go for it... and our electric rate is already high enough at the house. we also bought the hummer so she could get to all manner of places for...

this ^^ it's on a 30yr cycle https://www.alldata.com/us/en/support/repair-collision/article/vin-to-year-chart

well... just spent literally all night on some 355 forums reading about our poorly-designed valve covers, how much of a pain they are to change (if you can even find them now), and more than i ever cared to know about PCV systems - namely how our dirty side orifice often gets clogged up & leads...