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  1. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    ...or find a Bolt with a Good Sized Hex Head that has a Shank size that will slip snugly into the "Cog Hollows" and then use a Grinding Wheel to shape the 5/16" Insert Support End of that Bolt for securing it to the Engine Block.
  2. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    Autozone sells a "Sprocket Chain Wrench" (probably made by The Lisle Tool People) that can be wrapped around those two Small Cogs and manually restrained and secured while using a Ratchet & Socket to unwind those Cog Fasteners. If not.. and you have a LARGE Set of Vise-Grips... If you are NOT...
  3. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    If they are New ...and if right now... You have them Both in your Hot Little Hands.... Clutch them to your Bosom... and Install them at the right time in the R&R Sequence. Judging from the look of their Old OEM Ones' exterior condition... GOK (God Only Knows) what might be lurking inside of...
  4. MRRSM

    Coolant leak

    Do you have to do anything exotic in the way of a need to remove any other components to either gain access and work from the Top-Down ....or from the Bottom-Up to effect this repair? If so... more images of the B4nAFTER would be "The Cherry on The Cup Cake" :>)
  5. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    You Nailed it, Brother... No Doubt About it... and now for a bit of 'Cleaning Advice' Before you take one step further towards performing this R&R... THAT motor has SERIOUSLY FUBARed, Baked On, Gunked Up and Carboned Up surfaces apparently allowed by the PO (Prior Owner) who failed to either...
  6. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    There You Go... Slow, Deep Breaths... Take Your Time... and be Patient as Hell... "Softy... Softly.... Catchee Monkey..." Peter Lorre as "Mr. Moto" Hmmm... I was just thinking about your observation with the Chain going Slack and then Snapping tight as it passed around the Variable Valve...
  7. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    Please read Post #45 a Second Time as I have made some better qualifying remarks that will explain things much more precisely. if you followed the Cloyes advice to ensure that the 10 O'clock Position has EXT Marked under the Diamond Alignment Cut Out and the 2 O'clock Position has INT Marked...
  8. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    I'm not sure what you expected to see with those Alignment Marks being located in their proper and correct positions. THAT is where you WANT them to be. The only question now is whether or not you find ANY of the myriad Timing Chain Guides either Broken, Damaged or Missing or any of the Two...
  9. MRRSM

    Tutorial: The BEST Procedures for Performing a Parasitic Draw Test

    Courtesy Eric "O" over at South Main Auto Shop... I just located a Youtube Video Specific to our GMT360 Trailblazer & Envoy Platform concerning Diagnosing Parasitic Draw that might help cut to the chase on the Diagnosis. Strangely enough... THIS Part (1) of a Two Part Video is HIM asking for...
  10. MRRSM

    Best ELM327

    @coolasice ... FWIW... You might want to have a look at this Video from @MAY03LT concerning the Two Interior GROUNDS losing their connection and possibly Goofing up the Class II Databus...and MORE... Please Note what he mentions in the way of THIS Ground having a Direct Impact upon the DATALINK...
  11. MRRSM

    ENGINE SWAP: 2004 for 2002 GM ATLAS 4.2L MOTOR

    Just to “Play Catch Up...” on the latest TIME-SERT GM 4.2L Upper Block (Aluminum Test Block) Machining and Prep Work situation... Images First: https://www.flickr.com/photos/126111508@N07/albums/72157704232502675 I’ve had to take a few new and different approaches to achieve the “Raw...
  12. MRRSM

    NEED HELP Stuck in 4hi, but not

    FWIW Brother... Have a look at this link that has the GM Paper Manual Images of ALL the Ground-Bonding Strap Wires... for anything sketchy... I'm wondering if the Databus Splice Pack Ground along the Passenger Side Center Console might be the culprit ...with a clean-up of the Ground as described...
  13. MRRSM

    Fuel leak from top of tank

    Congrats on being Clever ...and Hanging on to Assorted Parts & Pieces... So Nice Rescued Hose Fix on your Fuel Tank during this R&R: If you decide that you do not want to start another 4HI Thread... Here is a Good Sampling of the subject matter already discussed here at GMTN you can bounce...
  14. MRRSM

    Gorgeous English Lessons...

    Try hitting the "Mute" (NOT Moot) Button ... She teaches Lip Reading English just as well. Besides that... I doubt that there is anyone here that would "Kick Her Out of Be.. Ughh Errr, I mean 'CLASS' ...for Eating Crackers'... :>)
  15. MRRSM

    Gorgeous English Lessons...

    How Come NONE of my English Teachers ...EVER... looked like....HER I would have been a Straight "A" Student! I expect these two Youtube videos will “...Get The Bounce...” due to the British Advert that is mentioned briefly… But Mods… Please… Treat yourselves to watching this absolutely...
  16. MRRSM

    Best ELM327

    I don't know if any of these fall under the onus of being "The Best ELM327" flavors of these OBD2 Scan-Tools, as they seem to have Windows Based APPs that may not by "simpatico" with my Linux Box and Linux Mint 19 Version OS. Nonetheless... they were all too inexpensive NOT to just grab them...
  17. MRRSM

    Water pump help

    By the By... In case you have not made the Water Pump & Gasket purchase yet... THESE ACDelco Components... are the ONLY Ones to Buy:
  18. MRRSM

    Maximizing 4.2 performance

    https://en.wikipedia.org/wiki/Chevrolet_TrailBlazer#EXT
  19. MRRSM

    NEED HELP Inconsistent brake pedal travel

    Avoid trying to "Tighten Down the Exhaust Manifold Bolts ...just a little bit..." It won't work... those EM Bolts have been exposed to way too much Cold Weather, Road Salt and Electrolytic Corrosion...and they will Snap Off like #2 Pencils. The Flange line of your EM has also had the chance to...
  20. MRRSM

    Starter/ignition problem

    https://gmtnation.com/forums/threads/electrical-ground-locations.15491/
  21. MRRSM

    Power door locks and remote question

    I'm uncertain whether or not this Video will nail down the issue... but perhaps this Professional Instructional Film will provide some additional clues about the Full Size GM Trucks with Security Programming issues ...and a Website that you can visit and communicate with via email and get some...
  22. MRRSM

    Power door locks and remote question

    Wow... A GMTN Member from New Caledonia... Remarkable... Welcome to The Nation... When you get the chance ...visit THIS First Link and after following @Mooseman 's Instructions... and if available... Download BOTH The Complete GM OEM Owner's Manual AND GM Service Manual for your particular...
  23. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    It's all right, Brother... I have Broad Shoulders... Perhaps a bit bowed from time to time... but unbroken now after almost 70 Years... So I'd rather have you take your Anger and Frustration out on me... than take a Sledge Hammer to that Impacted Crankshaft Bolt. Here is another one to choose...
  24. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    Besides being irrationally superstitious about certain "Numbers" ...I am a Very Conservative Mechanic who believes just as General George Patton did: "When comes to the Battlefield... I NEVER like to pay for the same Ground...Twice." When you have the entire upper engine area disassembled...
  25. MRRSM

    2011 Terrain codes; P228D, P0089, P0016, P0017

    (1) New OEM ACDelco Water Pump...Change it NOW while the Changing is EZ. (2) New Replacement GM OEM TTY Crankshaft Bolt. DO NOT RE-USE THE OLD ONE. (3) Obtain some Permatex "Ultra-Slick" Engine Assembly Lube. (4) Replace the Lower Timing Chain Cover Gasket. (5) Mobil1 Oil Filter-- Do NOT Cycle...
  26. MRRSM

    2007 Envoy 4.2 Turbo Build

    Get your hands on this Book... and try to get yourself steeped in the recommended designs before you commit to buying and building a system fraught with way too many design pitfalls: https://www.amazon.com/dp/1932494294/?tag=elightbars-20
  27. MRRSM

    2007 Envoy 4.2 Turbo Build

    If you have the Room (and the COOLING AIR STREAM) available to not only house the thing... but provide enough Ambient Air being driven through it. Without that Heat Exchange... it will complicate the "HOT WATER" problems by simply becoming a Heat Sink for the Coolant Column heading into the...
  28. MRRSM

    eBay 2003 Driver's Side Headlight Cage for $18.49

    Apparently... The Deer up in North Florida are Rugged as Hell. After the "Horny - Four Legged Ricochet" happened... it careened off and got up to run Full Tilt off into the local woods... Hopefully none the worse for wear. It surprises me that so many of the Local "Two Lane - Black Top" Roads...
  29. MRRSM

    2007 Envoy 4.2 Turbo Build

    You might consider running a "T" fitting (One Each) into and out of the Two Hoses that feed the Heater Core through the Firewall... but if that Core is clogged up with debris and junk... the Hard 90 Turns heading back towards the Turbo-Charger...might make the Coolant Stream get a little too...
  30. MRRSM

    eBay 2003 Driver's Side Headlight Cage for $18.49

    My Son called me a few minutes ago to regale me about his "Colliding with a Deer at 60 MPH... Dad... Now the Driver's Side Headlight and the Plastic Cage are ALL SMASHED IN." So... I searched around on eBay and located one for Under $20.00. Now I just need to figure out How to Install the...

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