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SportTrac Discussion
Engine & Drivetrain
Multiple problems, need advice!
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<blockquote data-quote="Robert Caffyn" data-source="post: 974742" data-attributes="member: 66648"><p>On first start-up, I'm getting a moderately loud tapping sound from the engine bay. Lifter? It goes away after about a minute of warm-up. HOWEVER, for about a month now I am getting 2 DTC's. P0420 & P0430, "Catalyst system below efficiency threshold, (b1 & b2). Bad cats? Exhaust leak(manifolds)? Bad O2 sensors? Could use some help here. I'm kinda leaning towards the manifolds(broken stud?) and if this is the problem, BBK is gonna send me some headers. Well, there it is.....Bob :cry:</p></blockquote><p></p>
[QUOTE="Robert Caffyn, post: 974742, member: 66648"] On first start-up, I'm getting a moderately loud tapping sound from the engine bay. Lifter? It goes away after about a minute of warm-up. HOWEVER, for about a month now I am getting 2 DTC's. P0420 & P0430, "Catalyst system below efficiency threshold, (b1 & b2). Bad cats? Exhaust leak(manifolds)? Bad O2 sensors? Could use some help here. I'm kinda leaning towards the manifolds(broken stud?) and if this is the problem, BBK is gonna send me some headers. Well, there it is.....Bob :cry: [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Multiple problems, need advice!
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