In need of help with crank no start

Squatch71

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Ok i have a 2010 mustang gt 4.6 3v with a automatic.i was driving it and was behind somrone who was turning, i was slowing down and just about to a stop and the car was downshifting and as soon as the guy turned it shifterd in to first and at the same time i gassed it and it hit the rev limiter, it started stumbling and finally died and i coasted to a nearby parking lot.it tried to start a couple of times like it was on 2 cylinders and died then it quit trying to start and just turns over.i towed it home,the battery died from all the cranking so i charged it back up and of coarse the codes were not there when i scanned it.i had new coil packs so i replaced them all and new plugs,still wont start,so ive changed cam sensors,crank sensors amd fuel rail pressure sensor still no start so i checked and its not getting fire to the plugs but it has power at the coils, theres no codes,no blown fuses, fuel pump is working . Has anyone else had this problem and can toss out some places to check? The pcm is working ,had new key made thinking maybe the key broke.thanks in advance
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Iceman62

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Would be nice to have some history 1st...any mods (performance, electrical, etc.)???
 

Squatch71

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Rattler cams tune and a gear is all since ive had it,before me im unsure
 

Squatch71

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Talked to ford tech,he thinks i bronke the tone ring on the crank that the sensor reads, im going to check it when i get home
 

Dino Dino Bambino

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I fear that when you gassed the car and the engine hit the rev limiter, something in the camshaft drive system broke and caused a timing chain to skip a few teeth. Since the 4.6 is an interference engine, it's possible the pistons may have made contact with the valves in a couple of cylinders.
 

JC SSP

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Dino could he pull all the spark plugs and with a bore scope do a quick inspection for valve to piston contact?
 

Dino Dino Bambino

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Dino could he pull all the spark plugs and with a bore scope do a quick inspection for valve to piston contact?
Yes he could do that. He could also do a compression check if he doesn't have a bore scope. If a valve is bent and unable to close properly, that cylinder will show zero compression.
 

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