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  1. Engines/Performance/Tech Questions
    Hey, im new to the Colorado game and had some questions, but first, some details. I ditched my 3/4 dodge ram gasser and picked up an 07 colorado. Comparatively, shes gutless, but thats ok. Its got the 2.9L, 5 spd, ext cab, and 4x4. Currently sitting at just under 220,000km. Shes my new daily...
  2. Engines/Performance/Tech Questions
    I cannot find where the "pressure hose" (The hose that sucks) is supposed to go, I accidentally removed the Secondary Air Injection Check Valve hose on the air pump after replacing the Check Valve and assumed it was the "blowing" hose. (could be wrong) (still throwing code). I can not find a...
  3. Engine Swaps
    I have a 07 2.9L CrewCab Colorado. What’s the easiest swap and what all is needed for each? I’m wanting to do a 3.5, 3.7, or a 4.8
  4. Engine Swaps
    I have an 08 2.9 5 speed in the truck right now and it started knocking so I’m gonna swap it myself but can’t find any 2.9 motors around, how big of an ordeal is it gonna be to change it to a 3.5 and what am I gonna need, I’m already looking for a motor with complete engine harness, computer and...
  5. Schematics
    2009+ Engine Controls and Fuel 2.9L Schematics 2009+ Engine Controls and Fuel 3.7L Schematics 2009+ Engine Controls and Fuel 5.3L Schematics
  6. Air Filter
    AIR INTAKE SYSTEM (LLV/2.9-9) Drivelines: 2WD; 4WD; ENG: ENGINE GAS, 4 CYL, 2.9L, MFI, L4, ALUM, VVT, DOHC, GM 2.9-9(LLV) PTS: PT DRESS SUBASSEMBLY INSTALLED (MODULAR OPTIMIZATION METHOD ONLY) PLANT OPERATION(JJA) AIR INTAKE SYSTEM. Fits: 2009 Chevrolet COLORADO EXT CAB | Nalley Buick GMC...
  7. I4/I5 Engine & Drivetrain
    Ebay'd a 15437 Volant CAI for $180 Not crazy about the oiled filter that comes with it b/c I've seen them mess with sensors Had to trim the main tube a bit to make it fit, otherwise no problem Clean my MAF/IAT sensor Sounds awesome Nice power gain ...until the next power cycle I get a CEL...
  8. I4/I5 Engine & Drivetrain
    i have a 2007 Colorado, 2.9L, Z71, 4x4, 5 speed with 38650 miles. I get 15 in city and 19 on the highway. I had no idea my gas mileage would be like that. the factory window sticker says 18 and 23. I've changed the spark plugs, cleaned throttle body and MAP sensor. nothing improved. I have had a...
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