handfiler... The old torsion mount is long gone. There was NO RUBBER at all (truly none) in the front (forward) section of the mount. Reinstalling the old one (which I don't have. It was replaced last October)... would be the equivalent of simply removing the new one and running the engine _without_ one installed. I suspect the vibration _would_ go away with no torsion mount installed, because it all started when i installed the new mount. The _REAL_ question is... Would a "genuine Ford" torsion mount NOT cause the vibration.? My gut tells me the vibration would be the same with any brand torsion mount. I was looking to see if anyone has had this same experience, AND could confirm the vibration stopped when the aftermarket part was replaced with a genuine Ford part. I honestly think (just my opinion) that there is no such thing as "too stiff rubber" that could cause THIS LEVEL of vibration. However, my "opinion" is about as "certain" as your "opinion." (Meaning, I need someone who has actually done this and resolved it by using a genuine Ford mount). Which brings me to garycrist's reply...
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I understand what you are saying (In 1986 I bought a 3-cylinder Chevy Sprint), but you appear to have missed the part where I stated I had ZERO vibration (none at all) before replacing that torsion mount. The vibration is WAY (WAY WAY) BEYOND anything even remotely normal for V6 balance issues. The Ford Dealership even confirmed this IS NOT "normal." (They didn't even try to suggest that, which they would have given that they had to ultimately admit they couldn't find the problem... NOT that there "was no problem." And they went so far as to state in writing that the mechanic is "guessing" that the problem could be a "binding flex pipe" which also turned out to be wrong. (Let me guess... because I installed an aftermarket Walker exhaust system, now I have an aftermarket flex pipe that is "too stiff"???). These are not solutions. They are excuses. "Potential fixes" that are really just "hunch guesses" (including some of my own), which one by one, have proved to be utterly wrong. That is why I kept writing "NO DIFFERENCE WHATSOEVER" in bold capital letters after each "repair" that made no difference whatsoever, and when I say that, I mean NO difference whatsoever.
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I think I have a genuine engine issue (perhaps "timing" which was the only thing Ford didn't check). The chain could have minor slack. The Variable Valve Timing Cam Gears could have wear issues; (particularly with the "centering pin"). As I stated in my original comment, I do not believe the vehicle's computer would register MINOR fluctuations with the timing. And even if I taught myself how to use my computer to take a timing "snapshot" at low idle, I wouldn't know what result is considered normal or abnormal. How much fluctuation with Variable Valve Timing is "normal"? I have no idea. That's why i wanted Ford to do it. (THEY DIDN'T)
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I genuinely appreciate your replies, but they really weren't helpful. handfiler is guessing that it is a "stiff rubber" issue, but he doesn't know it for a fact; (it just seems to "make sense" to him, as it also does to me, but that's NOT a confirmation). I already know removal of the torsion mount will eliminate the vibration, ONLY because the engine is then free to vibrate without symptoms. And garycrist appears to be assuming that I am complaining about a "mild" vibration. No, ITS NASTY, and it doesn't happen at all until the engine drops down to 1100 RPMs. In fact, at just 1200 RPM's (only 100 RPMs higher) the vibration vanishes entirely. (The Ford Mechanic AND the Service Manager both pointed out that a mere 100 RPMs higher and the problem completely vanishes). That's not "stiff rubber", unless someone who has actually resolved it with genuine Ford "loose" rubber can reply to confirm that as being an absolute fact. Someone telling me "Yes, I had the same problem, and resolved it with a genuine Ford mount." (That's what I am actually asking for here). The problem has also (proven) NOT to be a "binding flex pipe" nor any other guess (including my own guesses), that have now cost me over $1500 bucks (just in parts cost + the cost of the Ford Dealer)... and all of it with "NO DIFFERENCE WHATSOEVER" . garycrist, I need to be clear with you that this is far beyond "normal balance" issues. It was a valid point, but if you experienced this vibration, you'd laugh at any suggestion of "that's normal for the design." (My experience at Ford remained pleasant even though I disagreed with their excuse that "the computer says its not timing issue, therefore further tests are unnecessary." However, if they had tried telling me that vibration was "normal" there would had been friction. In fact, they acknowledged ON PAPER that the vibration was (quote) "definitely noticeable." (That's "Dealer-speak" for "Valid Complaint").
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Has anyone here actually experienced this issue AND resolved it by replacing an aftermarket Torsion Mount with a genuine Ford Torsion Mount? (I don't mean "yes, that makes sense" opinions and I don't need videos about engine balance design to explain my WICKED vibration. (Although I will watch it, Gary... thanks). My first job as a Dealership mechanic was in 1978 (a Rambler/Jeep Dealership). The point being, I've been around all of this for quite some time. I'm not some kid working in his driveway... although at this point in my life I AM WORKING IN MY DRIVEWAY. (And, to be perfectly honest, I "bailed" on working for Dealerships in 1985 over flat rate pay. The more experienced you are, the HARDER the jobs you get. They don't (or at least didn't back then) pay you for diagnostic time, so the guys doing brake jobs and oil changes were making tons more money than I did. Come to think of it, that could be why the mechanic who "diagnosed" my Edge wasn't looking to spend much time on it. They even admitted to me they were working on it "on and off when there wasn't other priorities ahead of it", which is why 3 hours diagnostic time took 4 days. And considering I had waited a week for an appointment, and I was paying the same rate as any of their claimed "priorities", I absolutely feel slighted by the experience.
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Btw, I don't know if it matters, but with the hood open, the engine is NOT VISIBLY vibrating, like every Edge vibration video out there I've seen. You simply FEEL the vibration (significantly) inside the vehicle. It's _NOT_ at all "minor," but it is VERY specific. It only happens when the engine drops to 1100 RPMs, and the vibration completely vanishes at 100 RPMs higher. (The Service manager & the Mechanic felt that was significant. They had never before seen a mere 100 RPM increase completely eliminate a vibration). And frankly, that's why my gut has been telling me this is a timing issue. I think at 1100 RPMs the chain (or gears or SOMETHING timing related) is free to cause fluctuation while in low idle, but just 100 RPMs higher and that "free movement" tightens up enough to eliminate the vibration. (For the record, that is just another GUESS, unless and until it is somehow proven.).
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Lastly, I repeat, is there anyone at this forum that has experienced the same issue as what I am describing? And if so, did a genuine Ford Torsion Mount resolve the problem?