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engine

  1. For Sale
    I have for sale a 2015 Colorado Crew Cab rolling chassis with drivetrain and fuel system, full body wire harness, minus a few plugs cut. It is V6 and 2-wheel drive and has 80 miles on everything. This vehicle was purchased for Battle of the Builders SEMA 2016 build by the shop i work at...
  2. Engine Swaps
    Hey guys, I have a 2007 Colorado with the 2.9L manual transmission and 4 wheel drive. I'm in need to replace the engine as it has low compression and rattling timing chain. I found a 3.5L engine out of a 2005 Canyon with an auto transmission and 2wd for a very good price. It comes with the...
  3. I4/I5 Engine & Drivetrain
    So basically I have a 2004 Colorado Crew Cab Z71 LS 3.5L I5 4WD with 198k Miles and my engine knock is extremely bad when I start it in the cold morning now. I was told my oil pressure should be at about 40PSI and it's running about 10 or 12PSI. I'd like to know if anybody could sell my a 3.5L...
  4. I4/I5 Engine & Drivetrain
    Help.. I have an intermittent / random problem that I've not been able to figure out. On random occasions (seems like it's usually 6-8 weeks between incidents), my Colorado will not start. When you initially try to start it, it almost starts but then doesn't. You can turn the engine over until...
  5. Chassis
    So last Sunday I purchased a 2005 crew cab z71 and I finally got to pick it up yesterday after the dealer did a tune up, alignment and fixed some other things. The problem is today driving to work I noticed a horrible rattling noise on the drivers side somewhere. The noise is only when I...
  6. I4/I5 Engine & Drivetrain
    Anyone ever think about removing powersteering and AC for some (little) performance gain? And how would you go about doing it if so? Just an idea I had. I know the whole "daily driver" factor will get shot out the window but I want to squeeze out as much power as I can by reducing the drag on...
  7. Engines/Performance/Tech Questions
    Hey this may seem like a very simple question but id rather ask before breaking anything. So i have a 2004 GMC canyon with the I-5 engine (3.5L). im trying to remove the engine cover on the right when looking at the vehicle from the front. Ive removed the three bolts and as far as i can tell...
  8. I4/I5 Engine & Drivetrain
    I noticed last weekend when changing the oil that there was oil all over the bottom of the engine, trans and everything else. It looks like the front crankshaft seal that's leaking! It's pretty bad, I've gone through 3 quarts in a week. Has anyone ever done the front seal on a 2010 3.7l? Any...
  9. I4/I5 Engine & Drivetrain
    I have an '06 Colorado Crew Cab with 120k miles on it. I have neglected it for quite a while since there was nothing 'wrong' with it. That said, about 2 months ago, I got the CEL for a stuck thermostat. I finally had time to get it into the shop last week and have it switched out. Since the...
  10. Engines/Performance/Tech Questions
    In 2004, I drove a brand new black [email protected]#extended cab Colorado z71 off the lot. [email protected]#It's been my daily driver ever since and now has close to 160,000 miles. I've taken good care of it, but at 117,000 miles, much like everyone else's 3.5, it started running a little rougher and threw the code for...
  11. I4/I5 Engine & Drivetrain
    so i keep hearing about theses iridium plugs i have been looking at ngk and acdelcos im not sure what ones i should get from those 2 or if there are even better ones out there.
  12. For Sale
    Hey guys! thru recent events Ive sold the 2004 canyon and ive gotten a new toy. I have parts left over that i didnt give the buyer so i can sell to you guys! I dont really know what price to put on these...just that shipping would be covered by the buyer. If you like something send me a PM and...
  13. I4/I5 Engine & Drivetrain
    So heres the deal, i took my '06 truck into my mechanics last weekend cause i noticed that it was idling rough. They determined that the seals on my heads were bad and i had them look up the description of the cylinder head service bulletin and they said that is what the problem was. My truck...
  14. I4/I5 Engine & Drivetrain
    I just went to my local napa and had them check to see why my check engine light was on.It came back saying a temp sensor or thermostat.I have ordered the sensor,just need a pic of where it is located.I know where the thermostat is ,but hopeing it is the sensor instead.
  15. I4/I5 Engine & Drivetrain
    So my 06cc has about 105k miles on it... Just took it in today because it was misfiring again and they said i need to have coil pack numbers 3,5 replaced... and they already replaced 2,4 maybe 6 months ago. Is this common or is something wrong that is causing this to happen?
  16. I4/I5 Engine & Drivetrain
    I got a red 04 LS and i think my rod bearings are shot. I need any advice i can find as to pulling this joker out of the truck. I got a service manual and it only shows a few pics and brief instructions. I am not good with text book learning, i am a show me hands on kinda guy. If anyone has any...
  17. Images and Video
    Since my property has been a veritable warzone due to roofing installation, I figured I'd pass the time by doing a couple of Duplicolor-in-the-engine tests. (Completely off topic, btw, got the 9005s for my fogs, luuuuv the ridiculous brightness and range). I'm not particularly attached to any of...
  18. How-To: Miscellaneous
    Disclaimer The community here at 355nation.net urges you to please use caution and seek professional assistance when performing modifications to your vehicle. Before attempting any modification it is advised that you refer to your Colorado or Canyon service manual or contact a certified mechanic...
  19. I4/I5 Engine & Drivetrain
    When I Put My Truck In Reverse In The Mornings Or After Its Sat For An Hour Or Two It Acts Like It Wants To Cut Off, Idling Up And Down Betwen 500 And 1500 Rpm If I Tap The Gas It Seems To Get Worse. Any One Experiencing This?
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