jasondaley Posted April 12, 2017 Share Posted April 12, 2017 I have a 2004 f-150 with the phaser rattle hot. I have replaced oil pump, chains, guides, tensioner, phaser, and soleniods. I still have a rattle hot. I have seen vct lock wedges and wondering if anyone has experience with them Quote Link to comment Share on other sites More sharing options...
Steve Mutter Posted April 12, 2017 Share Posted April 12, 2017 Did you change the lash adjusters as well? I have also see loose spark plugs make noise. I have no experience with vct lock wedges but i think you also may need a pcm tune to keep the check engine light off. Quote Link to comment Share on other sites More sharing options...
forddieseldoctor Posted April 12, 2017 Share Posted April 12, 2017 Make sure you don't have a flat lobe on a cam. We had that once. Had a flat exhaust lobe that the only concern was rattle/knocking noise. Quote Link to comment Share on other sites More sharing options...
batmantech Posted April 12, 2017 Share Posted April 12, 2017 I did have one recently where the roller in the follower was flat, did not turn, cam had very little wear. That thing sounded a lot like a phaser knock. Quote Link to comment Share on other sites More sharing options...
YukonTyler Posted April 12, 2017 Share Posted April 12, 2017 Phaser rattle I typically see as one bank completely falling on its face and not just a valvetrain noise local to one cylinder. It should be pretty easy on a power balance screen and using VCT error pids to confirm faulty phase shifting or just a cam/follower issue. The complaint is noise at operating temp, which is almost always going to be cam phasing. Sorry to say, but at this point for triton engines with an advanced case of 'phaser knock' they usually get quoted out with a 6006 assy. Chasing the source of low oil pressure to the heads is never fun, especially when most of the time you're dealing with a combination of bad tensioners, chains, phasers, solenoids, cams, heads and sometimes even lash adjusters and the bottom end. There's nothing worse than slapping in phasers and solenoids and six months later is comes back in rattling worse than it was in the first place. It may seem like over repair, but they tend to not come back compared to the piecemeal approach. I have no experience with the lockout kits. I've looked into them (thought about buying a used 3 valve, went with a used low mileage 2003 2 valve instead) but I've never installed one. Keep in mind that you'll have to install a chip in addition to the lockout itself. Conversely, as long as the solenoids are not mechanically faulty and will remain at 'neutral' then you can simply unplug the solenoids. Most customers who do not want to sink any more money into things typically don't mind the CEL provided that the ticking/driveability goes away. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted April 16, 2017 Share Posted April 16, 2017 One of the easiest ways to narrow down a flat roller follower or cam damage is to look at the knock sensor.......it will be off the charts. 1 Quote Link to comment Share on other sites More sharing options...
RyanG Posted April 17, 2017 Share Posted April 17, 2017 Cam followers. How does the inside of the engine look? Lack of maintenance? I agree with Tyler, if the engine is all sludged up inside, its probable time for a long block. Quote Link to comment Share on other sites More sharing options...
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