Thats it! Its the cat!
This is adding up now.
Another reason: About 6months prior to the issue, I was noticing vibrations on the freeway (load only) at ~90mph.....3months later, its vibrating at 75mph, then after the overheating, 65mph.
It would VANISH as soon as I let off the gas. Its obviously exhaust backpressure causing it. So the issue has been creeping up on me, but it finally gave out after the running hot.
I thought maybe my center bearing was going bad, but the fact that it did not vibrate when I let off the gas just didn't add up in my head at all....
It all makes sense now!
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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k
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