Search results

  1. A

    Possible starter problem on 2007 Tahoe?

    I am pretty sure my problem is the starter but I want some other opinions before replacing it. Yesterday I tried starting my 2007 Tahoe and there were no clicks or anything. battery was not completely dead because the lights and nav system worked fine. I hooked it up to jumpers and it started...
  2. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    cleaned the throttle body and MAF and it didn't seem to help. I noticed that the misfire is much worse while the engine is cold. Once it warms up I get around 1 misfire every 5 seconds or so. My idle seems a little rough though even when misfires don't show up.
  3. A

    2007 Tahoe octane?

    So I realize running higher octane doesn't make sense unless compression is higher and you are experiencing preignition, but I was e-mailing Justin from Blackbear and he told me that the lowest octane he tunes for the 2007+ 5.3 is 89 and that I should be running 89 even while it is stock. The...
  4. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    Yeah, if it was a random misfire on all cylinders I could see that. I planned on doing a MAF and throttle body cleaning soon anyway. Is there any procedure for relearning idle after cleaning the throttle body?
  5. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    The odd thing is that I don't think it was misfiring before I ran a can of Techron through the system. I wonder if the Techron knocked some crud off in the fuel tank or lines and clogged up ones of my injectors.
  6. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    yeah, it probably isn't enough to trip a code. I am just monitoring it with my scanner.
  7. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    I just got it. I don't think I would call it a problem yet. Just me being picky. It misfires only at idle probably 4 times every 10 seconds.
  8. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    Okay I swapped the coil and wires but I still get a misfire at idle on 3. Clogged injector maybe?
  9. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    Another question. Does this engine have a serviceable PCV system? if so where is the valve?
  10. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    Thanks, I have heard the Black Bear recommendation before. I will probably go with that.
  11. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    Thanks, sorry :)
  12. A

    Just bought a 2007 Tahoe LTZ, have a few ?'s

    I look forward to contributing to this forum once I get to know the Tahoe a bit better. Feel free to answer any of my questions below. Thanks! 1. Tahoe has 120k on it and never ran E85. I hear you can run a tank through to clean out the fuel system? Is that going to clog stuff up like the...

Forum statistics

Threads
137,757
Posts
1,991,295
Members
102,742
Latest member
CKendrick

Latest posts

Back
Top