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  1. K

    Can The Water Pump Pulley Be Replaced?

    Yeah, that's the conclusion I came to. I actually thought about firing up the MIG, but the way the weld let go... that metal was toast long ago. If I did weld it, I'd probably spend an hour chasing the crack from the crystallization, and even if I got it to where I thought it would hold, and it...
  2. K

    Can The Water Pump Pulley Be Replaced?

    If it weren't for bad luck, I wouldn't have any luck at all. Replaced the water pump on my '07 Tahoe 5.3 in April. Got a cheap one on Amazon. Yesterday, on the home after being fired ("laid off"), my serpentine belt exploded. I popped the hood to find the weld on the water pump pulley...
  3. K

    AFM Disable Options

    As far as the dongle and future implications... yes. The way the dongle works is by basically sending a command over the CAN bus telling the AFM not to engage. Because the ECU is telling it to engage, then the dongle tells it not to, the ECU recognised it's command was not followed and...
  4. K

    AFM Disable Options

    Quality. The cheaper ones either may not have proper coding and may struggle for priority on the CAN bus, or they may be made with cheaper IC's and flash and will fail prematurely. That's strictly from my consumer products design experience, so consider that general advice, not specific to...
  5. K

    Oil Pressure Woes - Need Advice/Help

    Yeah. It was a "true" reading, which is to say it was that stupid filter mesh clogging up in the port under the sender I pulled the filter and just left it out, haven't had any issues since... except when it came time for smog and I realized without that filter that removing my AFM disabling...
  6. K

    AFM Disable Options

    Certainly. Basically you purchase the tuner, which was a shade over $400 for me, and then you basically have have a really fancy code reader, LOL To go from code reader to actual programmer, you have to purchase what HP Tuner call "credits", which for the Tahoe it requires 2 credits at $50...
  7. K

    EVAP I/M Readiness is Going to Be the Death of Me! - Somewhat Solved - Still Alive

    Ya know, sometimes I impress myself with how stupid I can be! :D It passed with the EVAP still at INC. All that and I could have been done with this 2 weeks ago, LOL. Thanks again for all the advice!
  8. K

    EVAP I/M Readiness is Going to Be the Death of Me! - Somewhat Solved - Still Alive

    Correct, DTC free on both modules, all systems N/A or OK except EVAP at INC. I'm at about 500 miles since the last code clearing, running 87 octane at whatever garbage ethanol blend AZ has this time of year. The instructions I found said 1/4 to 3/4 were the boundaries, which I was inside of...
  9. K

    EVAP I/M Readiness is Going to Be the Death of Me! - Somewhat Solved - Still Alive

    Registration for my '07 Tahoe 5.3 expires on the 15th (10 days). I got the HP tuner to disable my AFM so I could remove the bypass dongle, which worked great, but uncovered some misfire issues. The entire right bank had to be rewired from the branch at the back of the intake forward (so all 4...
  10. K

    Need Wiring Sourcing Support

    I finally blew $500 for an HP Tuner to turn of the DOD on my 2007 Tahoe 5.3 FFV without the "permanent" dongle. That's left a stinging sensation, but it allowed me to finally diagnose my engine fumble too - which feels like an intermittent misfire. Turns out my wiring harness for the...
  11. K

    AFM Disable Options

    Ok, so this is gonna sound stupid, but I is what I is :)... can someone provide a link or specific model for the appropriate HP tuner? I'm getting a lot of noise trying to find it to figure out the baseline cost...
  12. K

    AFM Disable Options

    Well, first, that was 87k ago, LOL. But without putting too fine a point on it... one of the plastic end caps on my radiator blew apart while driving about 9 months ago. Caused one hell of an overheating event, which was followed by 3 or 4 more until I figured out the incident ate my water pump...
  13. K

    AFM Disable Options

    I'm in a pickle and need some suggestions for my '07 5.3 Tahoe. TLDR: I need a way to disable the AFM that doesn't involve the OBDII dongle, mailing off the ECM, or doing a full mechanical delete, and cost is a major factor... The full story: I have SMOG coming up in 2 months. I've been...
  14. K

    Need Help Identifying Missing Engine Part

    I'm not sure whether I should be impressed or terrified, LOL. They... um... didn't pull the intake manifold? LOL That's also a bummer for my stumble, because I shoved a 5/8 bolt in that hole until I figured out what was missing (a 5/7 just happen to grab the ID just right to thread into it)...
  15. K

    Need Help Identifying Missing Engine Part

    I have a "funny" one here... 2007 Tahoe LT, 5.3 FFV. In January, I had to have hernia surgery, but our Tahoe decided waiting for me to recover to demand a new oil pressure sensor and dipstick tube wasn't really an option. So I asked my two brothers-in-law to come "help" me. They broke a couple...
  16. K

    Need Advice on Engine Stumble

    Don't ya just love having time to work on your car? I wish I knew what that felt like, LOL. I finally got a chance to take a look at it. Before buying a tech II, I figured I'd hook up the smoke machine, because the way it felt with no codes made me think it COULD be an air leak. Sure enough...
  17. K

    Need Advice on Engine Stumble

    I did the plugs and wires back at the end of January, but the coils are another story. Wouldn't coils trigger a missfire code though?
  18. K

    Need Advice on Engine Stumble

    Appreciate the suggestions! It does have the original MAF and throttle body. I checked for obvious air leaks down stream of the MAF, but didn't find anything. Similarly with the vacuum lines. Maybe I should hit it with a smoke machine.... For the throttle body and MAF, I've sprayed them...
  19. K

    Need Advice on Engine Stumble

    Got a stumper I need some advice on... 2007 Tahoe LT, 5.3 FFV, 287k on the clock, longblock was replaced at 200k due to AFM lifter failure, AFM disable dongle was put in with the new engine. A couple weeks ago she developed a stumble at idle. Just a quick little stutter and then normal...
  20. K

    Oil Pressure Woes - Need Advice/Help

    That is EXACTLY what I needed to know! If they require positive pressure to collapse, they cannot collapse unless commanded. You rock! 1000 thank-you's! Now I just gotta figure how get it done without calling The Destruction Brigade, LOL. I'm dang tempted to put an NPT to compression adapter...
  21. K

    Oil Pressure Woes - Need Advice/Help

    Oh I'm not worried about the status of their collapse function under operation. My concern is that they would collapse when I shut the engine off, just when the engine goes into a resting state. IF they do, THEN I'd be concerned pulling the filter as they could clog and fail to fill back up...
  22. K

    Oil Pressure Woes - Need Advice/Help

    With three ruptured discs from a stupid move a decade ago and now this triple hernia, considering 3 of the 4 vehicles I regularly work on include an '88 Suburban, a '58 Apache, and this Tahoe... that's a $150 I think I need to come up with. If that stupid $0.99 nightmare is seriously for...
  23. K

    Oil Pressure Woes - Need Advice/Help

    So I have a decent creeper, but you're gonna have elaborate on what an overhead creeper is. That's a new one for me, but a dang welcome one considering this circus! LOL The sender in 2018 was an Autozone Duralast part. In 2019, it was an AC Delco from Rock Auto. December's came from Autozone...
  24. K

    Oil Pressure Woes - Need Advice/Help

    Folks, I got a heck of an issue and I'm plum out of ideas. I need some help in the worst kind of way. Sorry in advance for the length, but context and details is how you get to solutions, right? LOL Bearing that in mind, I'll give the TLDR version first: My oil pressure sender has gone out...
  25. K

    Need Some Parts Buying Advice

    Call it reactive proactiviy? LOL The rear main is leaking (at least that's only seal I haven't been able to rule out), so the transmission has to come out no matter what. That would mean exhaust seals by default, but it definitely means that because I didn't replace them when I did the H3 motor...

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