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    Electrical Pats Battery Drain

    Well nothing would be damaged by modifying the car in the manner you suggest, but in my opinion it would be a waste of time. A wiring schematic and a basic understanding of electrical theory will diagnose the concern a lot faster. On a 98 Mustang fuse #8 of the interior fuse panel can branch...
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    Electrical Pats Battery Drain

    Although I cannot say for certain because I have never attempted to modify one of these specific cars in the manner you described, I would be inclined to think it still would not work. Although the PATS would not be at fault in this instance as far as causing a drain, one of the modules that...
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    Electrical Pats Battery Drain

    That would be correct.
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    Electrical Pats Battery Drain

    This won't work due to module communication network concerns. The PATS system consists of several modules working in tandem on this car. It should also be noted that PATS cannot simply be turned off or disabled. Fuse #8 of the interior fuse panel on a 98 Mustang feeds power to one...
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    Electrical Pats Battery Drain

    Disconnect the negative battery cable and connect an ammeter between the cable and neg. battery post. Leave it hooked up with the meter turned on for at least a half an hour. If everything is turned off, key removed, doors closed, trunk closed, hood lamp disconnected (if it has one) the meter...
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    Coyote Engine Scored Cylinder Wall

    Assuming (hypothetically speaking of course) there is in a fact "a serious design flaw on the 5.0 that causes #8 cylinder to run hot resulting in engine failure, and unmodified engines are having the same problem also" to paraphrase you and that you are correct, then why don't you ever hear...
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    Coyote Engine Scored Cylinder Wall

    The powertrain warranty is voided, not the entire bumper to bumper warranty. The customer is more that welcome to pay to have the engine repaired. A complete replacement engine assy. has at least a 12/12 warranty I know for sure. I think it might be 24/24 - but I'd have to check into that to...
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    Coyote Engine Scored Cylinder Wall

    Assuming your grammar was perfect, can you be anymore detailed in explaining what specifically you are referring to in the comments as shown above, for not just myself, but anyone else out there reading that might be curious? Anything GM or any other manufacturer is doing is completely...
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    Coyote Engine Scored Cylinder Wall

    Note: if you are going to try and make a point, you might want to learn some basic grammar first. There are in fact several pictures of the cylinder heads at the link I posted. Here is a direct link to one picture...
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    Coyote Engine Scored Cylinder Wall

    If the 4.6 had all of the same specs and features as the 5.0 does, except for displacement, then the 4.6 would have the exact same problem. A properly done tune in fact will not cause a problem. That is the problem - not very many people out there are doing them properly. I am not an expert in...
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    Coyote Engine Scored Cylinder Wall

    Pictures of the 5.0 from every imaginable angle, including clear pictures of water passages in the block and cylinder head for all to see: http://www.mustang50magazine.com/techarticles/m5lp_1003_2011_ford_mustang_gt_50_coyote_engine/photo_12.html Vfast, you are obviously a bitter and...
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    Coyote Engine Scored Cylinder Wall

    The dealership I work at has the highest volume in the Phoenix region. To date we have had exactly one Mustang in with the #8 issue. This car had a supercharger and tune on it. It's also worth mentioning we sell more Mustangs than any other dealer in the city. The one Mustang we had with this...
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    Coyote Engine Scored Cylinder Wall

    What a coincidence, I started working for Ford in 1990 also. The big difference is that I still work for them (dealer, not FoMoCo). Ford's basic warranty policy of only covering manufacturing defects has not changed since 1990, is much older than that, and will always be the same. However since...
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    Coyote Engine Scored Cylinder Wall

    According to the Magnuson-Moss Warranty Act a warrantor is allowed to stipulate terms or conditions that may void said warranty as long as these conditions are clearly stated. In the warranty manual that comes with every new Ford, just such a statement is in there. It states that Ford won't...
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    Coyote Engine Scored Cylinder Wall

    I don't need to hear from the OP to know why the warranty was voided on his engine (they are welcome to comment though). Everyone on this forum that owns, knows someone who owns, or is thinking of buying a 2011 or newer 5.0 equipped Mustang should be fully versed on a technical bulletin from...
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    Questions To Those Who Have Ordered From A Dealer

    I don't necessarily agree that a pre-order is a waste, but I do agree with being patient, shopping around, and buying a car with zero options being a bad idea (going to really hurt resale big time). All vehicles sitting on a dealers lot are costing them interest, so if you take that fact into...
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    Engine Light Flashing Question

    The one and only thing that will make the check engine lamp flash is a bad engine missfire. All other emissions or electronic engine control faults will cause the light to come on and glow constantly. A miss that's less severe won't even make the check engine lamp flash. Are you certain it's...
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    Check Engine Light On

    The thing you are concerned with is a vacuum leak. Looking at the picture, I cannot see a problem, but that doesn't mean one isn't present. The easiest way to find a vacuum leak is to spray carburetor cleaner on and around any area you suspect might be leaking, or could possibly leak and watch...
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    Check Engine Light On

    If it was not installed correctly or is defective in some way that would cause a vacuum leak, then yes.
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    How Long For P0420

    1st thing you need to do is repair what ever caused the missfire. If it is a bad coil and spark plug replace them. A miss will cause the convertor to fail if left un-repaired and driven long enough, and guess what - anything that can cause a missfire that's not covered under warranty is going...
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