Rebuilt and stuck
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Rebuilt and stuck
2005 F250 4x4 5.4 liter. It seized from a sludge heart attack and the timing chain threw cover metal throughout. Pulled it, cleaned it, changed crank & bearings, timing kit, and new rings. Cam journals were a little beat up, and I worked those by hand to where they are pretty close to good, and that was on the right side, but the left side is throwing the codes. Everything else looked ok. It starts rough, and seems out of time. I can floor it and max RPM is around 3000. Codes are P0345 and P0349, camshaft position sensor A bank 2 failed or intermittent. After it warms up and I start trying to diagnose things, it gets a stuck lean code sometimes. Changed cam position sensor, no luck. Compression tested at 155, 155, 155, 155, 155, 155, 160, 120 (within the 75% on the charts). I replaced the left cam phaser and swapped the VCT's left to right. The cam had some wear at the key pin slot, but not much, and it runs exactly the same with the same bank 2 P0345. I don't think a fuel issue could do this, but a wire or circuit could definately do it, but I don't know where to look now. Any ideas, because I'm about to go give the dealer some money.
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Well, it's fine now. Phasers are not left/right specific, and they have a main timing mark and a secondary one 180 degrees from the main. You're supposed to line the main one up on one side of the engine, and use the secondary one on the other side of the engine. The fifth timing tabs (the odd tab) on each phaser end up pointed generally toward the pistons on one side of the engine and away from the pistons on the other side of the engine when lining up the marked chain links.
My online service manual left this point out of their notes.
My online service manual left this point out of their notes.
