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  1. 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!
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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)...
  9. 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...
  10. 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...
  11. 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?
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. K

    Need Some Parts Buying Advice

    My '07 Tahoe LT just rolled over 281.3k. Got a new long block around the 200k mark. It's a long story, but I need to do some teardown on it for a water pump and a rear main seal. While I'm in there, I really should replace all 8 coil packs, all 8 injectors, plugs, and wires (plugs and wires...
  21. K

    What to Buy for a Tech 2

    Turns out my issue was low charge, BTW. So much for my memory. When I looked up the actual temperature chart I was running about 10psi light on the low side. On a whim, I said F-it and went ahead and pumped it up another 10 and it worked like a charm. I ASSuMEd I knew what the pressure...
  22. K

    What to Buy for a Tech 2

    My AC will run cold, then out of nowhere will basically feel like it's just recirculating the cabin air. It's intermittent, random, and frequent enough that the cabin never gets below about 90-95F. Charge looks good, I can't catch the compressor cycling when it happens, near as I can tell all...
  23. K

    What to Buy for a Tech 2

    Eh, it may be moot for the moment. But thanks for trying! I need(ed) it to read the aspirator readings to see if a faulty reading is why my air's not coming out cold intermittently. But some good old fashioned manual sleuthing (ice cubes and a heat gun on the sensor) indicate it's probably...
  24. K

    What to Buy for a Tech 2

    Phoenix (Ahwatukee to be specific), but Chandler is right up the road and my tools are all in Mesa, so anywhere in the east half the Phoenix metro area is really fair game.
  25. K

    What to Buy for a Tech 2

    I've search via this forum for quite a bit, and google for quite a bit more, but I'm kind of running into a wall, so I'm giving up and just asking. I'm broke, but so is my truck, so something's gotta give :) I need a tech 2 for my '07 tahoe, but I can't afford a tech 2. I'm trying to find the...

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