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Is this ever going to end!! Any how we need to keep moving, so grab your popcorn and favorite beverage and lets have a further look into this Chevy Colorado 2.8 that is being plagued by the infamous P0017.
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50 thoughts on “Chevy colorado p0017 case study part 4”
  1. Avataaar/Circle Created with python_avatars Daniel Medrano says:

    What gear actuator did u use ?

  2. Avataaar/Circle Created with python_avatars Daniel Medrano says:

    What gear actuator did u use ?

  3. Avataaar/Circle Created with python_avatars Shane Martin says:

    I'm doing timing chain on h3 Hummer 3.7 got the engine topdead center. Well I forgot to lock down cams down took the tensioner off did I screw up the cams barely move but the bottom moved some.

  4. Avataaar/Circle Created with python_avatars thomas savage says:

    I wonder how much this job cost?

  5. Avataaar/Circle Created with python_avatars thomas savage says:

    It's a good truck to buy new, & sell or trade by 80000 miles.

  6. Avataaar/Circle Created with python_avatars Doug Kelley says:

    Between the worn chain play in actuator and wear in guides probably more than enough to throw code.

  7. Avataaar/Circle Created with python_avatars Doug Kelley says:

    Do you just go ahead with oil pump since you are already there

  8. Avataaar/Circle Created with python_avatars Doug Kelley says:

    Finally some music to work with

  9. Avataaar/Circle Created with python_avatars mike marshall says:

    I was yelling at the video when you fired that engine during diagnosis. I heard a rattle and slapping sound at first cold idle, CHAIN SLAP!!

  10. Avataaar/Circle Created with python_avatars jose cavada says:

    Exelent.

  11. Avataaar/Circle Created with python_avatars Up2NoGood says:

    You can find this with a scope.. It should idle at zero degrees. Then move smooth with higher rpm…If you see it searching all over the place… It's sticking or erratic from oil passage plugged up..Same as a Ford VVT cam gear…

  12. Avataaar/Circle Created with python_avatars Alexandro Albares says:

    Hey buddy you the f**** best guy mechanic technician guy

  13. Avataaar/Circle Created with python_avatars Bismarck San Diego says:

    Love the long series vids !!

  14. Avataaar/Circle Created with python_avatars Sarah Tweeten says:

    First off, I own and 2006 Chevy Colorado with a 2.8 L and am in the thick of this repair myself. I have found your videos to be so incredibly helpful! Thank you!

    Are these torque specs pretty readily available online, if so where? If not online, where did you get your manual?

    Lastly, I was “a big dummy” and managed to lose 2 of the grommets around the bolts for the timing cover. Any idea where I can get more? I have visited several auto part stores and done lots of internet searches but am coming up empty. If push comes to shove, I’m not above heading to the U-Pull-It…but thought I would check my options.

  15. Avataaar/Circle Created with python_avatars Tom Everett says:

    Mortske repair is dealer for the super scraper fyi

  16. Avataaar/Circle Created with python_avatars B MA says:

    How come didnt do The back chain?

  17. Avataaar/Circle Created with python_avatars sheeshalready says:

    As soon as you were able to show that the rear of the cams were flat to flat, you knew you solved it. I watched this series before and thoroughly enjoyed your processes to go down this labor intensive repair. I am older than you by about 20 years. I have learned the hard way to NEVER buy GM or Ford again..and do not get me started on Chrysler!

  18. Avataaar/Circle Created with python_avatars Trail Tooth says:

    Colorado timing chain job is no fun!

  19. Avataaar/Circle Created with python_avatars David Timmel says:

    I have used an old 30 caliber rifle bore brush to clean out smaller bolt holes.

  20. Avataaar/Circle Created with python_avatars William Hanna says:

    I'll bet the neighbors truck has same problem from looking at the scan tool readout with cam actuator.

  21. Avataaar/Circle Created with python_avatars racingred115 says:

    Great video ordered an actuator with my kit and my engine has never idled better 🤜🏻🤛🏻 no codes

  22. Avataaar/Circle Created with python_avatars jim Jones says:

    Eric do you think a good time while y there to replace f cover with new one then u have a new oil pump

  23. Avataaar/Circle Created with python_avatars Robin Sattahip says:

    That Chevrolet timing chain replacement has been cited in several articles about ridiculous designs that drive up the cost of vehicle ownership and repair.

  24. Avataaar/Circle Created with python_avatars Ricardo Dominguez says:

    Hi SMAR, I've been struggling with a similar case, the truck came from another workshop, in that workshop they rebuild the engine due to there was a knocking noise derivate of the weare of the main bearings of the crankshaft, after they rebuild the engine, the iddling of the engine was hyperbad, like there was a misfire, but all cylinders were working, and the ECU set the code P0017, they proceed to change the timing change and the VVT actuator… However, the same issue show up… Then, the customer came to muy workshop AND they told me all that I said previously,
    Then, I beggan with the diagnosis, so, I checked the the TA degrees, there was a lot of fluctiation, so I decided toi check the timing chain, I checked the chain and even that the kit was new, the tensioner and the chain seems like have a wear, so I proceed to change (again) the timing chain kit, I leaved the dame VVT due to appearently it was new (the other timing parts also), and the customer doesn't want to expend more money, well, we set the timing kit again, and we put all the things back togheter, then with the First Run, appearently the problem was solved, however, when the engine reach the optimal temp, the engine start to fail again, the was so manny assumptions about the problem, because teorically, it was all fine and new, then we start with the basis, we checked the Oil pressure, beacuse obviously the VVT works with the Oil pressure, our surprise was, that with the engine cold, the engine shows 50psi, after a while when the engine Is getting the operational temp, the Oil pressure was going down, the manual indicate 12PSI @1,200 RPM as minimum, however, with the iddle the pressure was under 10PSI, even reaching 0PSI (checked with a physic gauge), and the dashboard doesn't turn the light on for low Oil pressure
    Well, we decided to, check de timing again and change the Oil pump, my surprise was, when we put the cylinder 1 at TDC, as the manual states, the flat surface at the reae of the camashaft will be facing up at the same position, my surprise was that the exhaust camashaft was counterclockwise arroun 30 degrees (A LOT), AND the timing marks were in "appearently" the correct position, however the camashaft was rotated, We don't use the proper tool to hold the rearback of the camashafts, we put it in time holding the cams with a wrench as You do in the video… We maded sure that the rearback of the cams were faced up, AND we checked with the straight edge across the cama flats, I still don't understand why the exhaust Cam rotated a lot… Well in conclusion, we put it back on time and we installed the new Oil pump, we put all back togheter, the Oil pressure Raise up inmidiantly @70Psi with the engine cold, and the "check engine" in the dashboard went off, then when the engine heats up, the Oil pressure maintain @20-25PSI with the engine iddling…
    So, those who have this problem consider the following:

    1. Oil Pressure
    2. VVT solenoid
    3. Timing Kit, Chain, Ribs/Guides, Tensioner, Sprocket.
    4. Verify AND Change if neccesary the VVT actuator.
    5. USE the proper TOOL for holding the cams rearback… If You don't use It, keep in mind that the timing probably fails…
    6. This engine configurations are complicated, so be prepared to have some struggles specially with 4×4

    Great Videos!!! Greetings from México!

  25. Avataaar/Circle Created with python_avatars Weldon Kuhn says:

    You’re an awesome mechanic, enjoy every one of your videos that I have ever watched.

  26. Avataaar/Circle Created with python_avatars Jo10Mo says:

    I am glad I’m watching this whole repair on this Chevy Colorado cause I am looking into getting one of this vehicles and now I know what all the issues that come about on it

  27. Avataaar/Circle Created with python_avatars gunsaway1 says:

    That engine is a piece of crap. GM could have done better

  28. Avataaar/Circle Created with python_avatars William Aycock says:

    How much does a job like this cost? I got a clicking noise and I listened to the inside with a flat head didn’t here anything sounded smooth. But I can’t figure out where it’s coming from.

  29. Avataaar/Circle Created with python_avatars Jason Vesmam says:

    what are those bolts on the front of the block you loosened and just tightened in the beginning of this vid? i have a 2007 4 cyl with same problem. i was thinking of just changing the actuator. would you recommend changing chain and tensioner ? also do i need a gasket set? at napa auto they said something about a balancer chain??? they had a kit for 350 and one for 250 Im not sure what i need. my truck runs but i can't pass emissions. a shop near me wants 2k to fix. i want to do it myself . your videos are very helpful but I'm not sure if i understand everything. i know my actuator is bad if i just change that do you think i should pass emissions? any advice would be helpful

  30. Avataaar/Circle Created with python_avatars Sharky Rich says:

    That truck is a nightmare. Wait until you have to do one that's 4×4. And btw there is a balancer chain on the back of the motor that you change when you do the timing. The trans has to be removed.

  31. Avataaar/Circle Created with python_avatars Aaron. N says:

    👍👍

  32. Avataaar/Circle Created with python_avatars Aaron. N says:

    Well I wish you can fix my lifter that knocks on the exhaust side after it comes to running temperature the money it cost to fix what you're doing right here in this I don't know any good shops in my neighborhood that I'd want to take it to

  33. Avataaar/Circle Created with python_avatars Jeff Scott says:

    Yeah determining TDC on these Atlas engines can be a pain as there are no external marks to indicate it. That's why GM came up with the J-44221 cam holding tool. Luckily it's only 12-13 bucks and not stupidly priced as most of their specialty tools are. Another great video series as always Eric!

  34. Avataaar/Circle Created with python_avatars gandl2123 says:

    Getting ready to tear out a knocking 3.5 as a Grandson project so he will have a "first truck" to drive back and forth to school…part way in and argh..I have never worked in 50 years on such an over complicated to pull motor I have have ever worked with. Now I'm nearly out…separating trans and thinking that I'm jumping into this tapping motor (rod) and going to or thinking about even though it was running great (but knocking) and will be horrible to rebuild..right? What is the easiest route for a crank kit and leave everything else alone or just full rebuilt. Sell it and move to something else? Or is there any REALLY GOOD Videos that have been done or am I getting into something that I need to run fun. Tks

  35. Avataaar/Circle Created with python_avatars Shane Harrison says:

    I'm good but garry almost ate it bigtime

  36. Avataaar/Circle Created with python_avatars Shane Harrison says:

    It is for us all bro

  37. Avataaar/Circle Created with python_avatars Shane Harrison says:

    Time to polish that gem

  38. Avataaar/Circle Created with python_avatars Shane Harrison says:

    Yep I'm ok just like a cat always landing on my feet and walking away like I meant to do that

  39. Avataaar/Circle Created with python_avatars Russell Dilworth says:

    Its ridiculous also why they even bother using a bicycle chain to time a friggin engine!!…Years ago a chain was used(commonly duplex) normally to be service free…And i mean service free..never had to be looked at throughout the engines whole life!!!!..They would be better using a bloody belt instead..so as u know u have to change it at intervals….less labour as well!!!!

  40. Avataaar/Circle Created with python_avatars Russell Dilworth says:

    A bit silly u didnt change the bottom crankshaft and the other camshaft sprocket…Then the set would have been complete….Guaranteed these parts will also be worn (pitch of teeth slightly out)

  41. Avataaar/Circle Created with python_avatars Russell Dilworth says:

    That is without a doubt the worst designed engine i have ever seen!!!….Even old british leyland engines were better designed than this CRUD!!!lol
    Thin walled timing chain covers that flex like hel etc……lucky a piece didnt break off when trying to remove this in last video!!!!…

  42. Avataaar/Circle Created with python_avatars Russell Dilworth says:

    Lol…Eric, when u give us the look around at all the parts u had to take off it so far….It looked like a Breakers yard ffs lol…..steering racks and loads of crap Nasty!!!!lol

  43. Avataaar/Circle Created with python_avatars Donnie Robertson says:

    Second time watching 5/23/2020

  44. Avataaar/Circle Created with python_avatars Ralph Wells says:

    Great work Eric. You are the best on these videos. I hope you continue your alliance with You Tube videos. They helped me tremendously on my son's Chevy Colorado I-5 cylinder head replacement. What a mess on timing chain replacement. Thank you.

  45. Avataaar/Circle Created with python_avatars blaser51 says:

    I got sucked in on this one Woes (SP) is me !!!!!!!!!!!!!!!!!!

  46. Avataaar/Circle Created with python_avatars ULTRA MAGA PIMPERNEL says:

    Tell that vehicle owner they need to change their oil more frequently and use a better engine oil.

  47. Avataaar/Circle Created with python_avatars Logical Guy says:

    And after all that you just did half a timing chain job … there is another chain on the back of the block on the balance shaft …you have to pull the trans to change it. That motor is a GM nightmare.