Recent content by CakeBlazer

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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    Ah, there we go. After letting it sit for over 48 hours now with the battery connected the code scanner threw a P0302 Cylinder 2 Misfire code shortly after starting the vehicle today so the misfire followed from 1 to 2 with a coil swap. Sounds like that coil is bad, yes? I should also note...
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    Well I replaced all the spark plugs, not that the originals looked bad. All plugs are ACDelco Iridiums. Also cleaned the throttle body. No more stalling when turning the AC on/off, so there's that. However, I swapped coils 1 and 2 and now we're back to a P0300 Generic Misfire code. Nothing else...
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    There was no water or actual liquid or any kind, it was only stuck on residue so it appears the leak isn't too bad, at least not now.
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    Well it seems I've really entered sucksville now. There is what appears to be oil in the Cylinder 1 coil socket. See photos below. Cylinder 1 coil socket - Cylinder 2 coil socket - Much less residue here. The coil itself was clean. Coil from Cylinder 1 - oily residue noticeable...
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    Update - So the first time the OBDII scanner was attached was almost immediately after this issue started and it wasn't attached for very long. I just now allowed the vehicle to run for a bit, revved the engine a few times, and reattached the scanner. It now throws a P0301 Generic/Cylinder 1...
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    Thing is the vibration gets worse only at low idle. Revving the engine doesn't make the vibration worse nor does it generate any uncharacteristic noise. It only gets worse as the RPM's go down, not up. As long as the RPM is above ~750 it's fairly consistent and just noticeable. I'll check the...
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    Only one spark plug has been replaced while I've owned it and that was the one that went bad. Can't recall the brand. Just odd that this started right after doing some work on the vehicle. I had also replaced the camshaft actuator solenoid, guess I might want to check that again.
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    I have no idea if the throttle body has ever been cleaned. I've never done it myself but have put ~20,000 miles on the vehicle. Given the issues it was having cleaning the throttle body was already on the list of things to do. See the photo for the OBDII readout. I'm admittedly not familiar...
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    2002 Trailblazer - Slightly rough idle, gradually drops RPM and stalls

    2002 Trailblazer, 4.2L I4. 187,000 miles. As noted in my most recent thread here I just replaced the ignition cylinder and got the vehicle running again. This was also after an exhaust manifold replacement. After finally getting the exhaust manifold bolts adequately tight and eliminating the...
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    02 TB - Ignition won't turn, key not stuck

    I guess you could say that. Key hole was completely destroyed. Think we went up to a 1/2" drill bit but I'd have to check again. Tumblers (the remains of them, rather) were pulled out one by one but in retrospect I'm not sure that was necessary. Popping the "locking bar", that long rectangle...
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    02 TB - Ignition won't turn, key not stuck

    Felt like I should follow up. Everything went fine, new ignition installed without issue. That said, in case anyone else runs into this issue, it's actually quite easy to drill a stuck ignition on these vehicles, or at least it was in this case. Should have started there.
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    02 TB - Ignition won't turn, key not stuck

    Any tips for install of the new lock cylinder? I.E. how to make sure ignition switch gears are timed correctly, anything to watch out for, etc. Just want to be sure I don't mess this up.
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    02 TB - Ignition won't turn, key not stuck

    Lock cylinder drilled and removed. Wasn't the easiest thing ever but it's out, and with no discernible damage to anything else.
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    02 TB - Ignition won't turn, key not stuck

    Right, well... Tried the "bump" method today using a dead-blow. This succeeded in doing nothing except snapping off one of the plastic finger tabs. Tried both with key in and out, nothing. For what it's worth lubricant was sprayed a short time ago into the lock cylinder. Guess it's getting...

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