JoeliusZ28 Posted September 13, 2017 Author Share Posted September 13, 2017 Figured I'd bump this up since my 6F35 might be biting the dust at 151k miles. Got a really bad grinding sound i cant pinpoint. On 8/17/2015 at 10:17 AM, Waldo said: Everyone like to blame that on "drive-by-wire" systems, but it had nothing to do with that. The throttle delays are all a result of the more stringent emissions regulations that have been put in place. If we still had cable throttles, they would have to have complicated and expensive systems like dampers, bypass valves and other such things to get the same effect that the drive-by-wire systems can easily do. Waldo, this is a really old conversation now but yes youre right about this. I've had conversations with powertrain engineers and I'm aware that calibrations of drive-by-wire systems incorporate lag for the purposes of meeting emission requirements, since sudden changes in engine conditions are the hardest to manage for emissions. However mitigating their own warranty cost is also a big reason they do it (throttle management is the easiest torque management) and yes akirby some of it is for drive-ability also especially in consumer models. I've driven a handful of drive-by-wire cars with performance calibrations that seemed to have no lag whatsoever. So i agree that it isn't inherently the technologies fault, however I can't help but view the system as a several hundred dollar cost to make the car drive worse and subject to higher repair costs (thankfully ford already ate the cost of my first throttle body replacement). More than once ive heard people say they like EV's because they respond better than gasoline engines... and while I appreciate EV's I can't help but shake my head at those kind of statements. It is useful for traction control and cruise control systems as well. All my own subjective opinions here though. I'm a car enthusiast for the driving experience above all else. 0 Quote Link to comment Share on other sites More sharing options...
sirtanon Posted September 13, 2017 Share Posted September 13, 2017 4 hours ago, JoeliusZ28 said: Figured I'd bump this up since my 6F35 might be biting the dust at 151k miles. Got a really bad grinding sound i cant pinpoint. I know I also posted in your other thread about the interchangeability.. but since you said this here, I figure I'll respond here. The grinding you're talking about - Is it kind of a low rumble-y grinding at highway speeds, or is it more of a "metal-on-metal" .. 'crunchy' kind of sound that is even noticeable at low speeds, or only at certain times? I ask because I'm starting to notice what I suspect is a wheel bearing/hub going out.. which I first was a little concerned might be trans, since there was also some change in feeling happening at certain speeds. I notice it most under acceleration and higher speeds on the highway. For yours - if you had to take a stab at where the grinding sound is coming from, would you say centered in the engine compartment, or would you say more towards the right or left side? Also - When was the last time you did a drain & fill on your 6F35's trans fluid? Doing this might tell you if there's a problem.. especially if you find a lot of metal bits in the drained fluid. 1 Quote Link to comment Share on other sites More sharing options...
JoeliusZ28 Posted September 14, 2017 Author Share Posted September 14, 2017 Funny you mention all that sirtanon, I actually think the noise may be coming from my accessory drive now and this was a false alarm . Going to dig into it this weekend. I jumped to conclusion on the trans after replacing the passenger front wheel bearing and still having the noise present (it was in fact bad). The noise does seem to originate more from the passenger side. Changed the fluid in the 6F35 10k miles ago and it was fine, but this problem did come on rather suddenly. Hopefully I luck out, I think i have a new waterpump sitting on the shelf in my garage already. 0 Quote Link to comment Share on other sites More sharing options...
sirtanon Posted September 14, 2017 Share Posted September 14, 2017 Ah.. yeah you might be on to something. One of the first things I did after I bought my Fusion (used) was to replace the Belt Tensioner. Man, was that sucker LOUD. Passed a fair bit of vibration through at certain speeds to. The part was only about $43, and took about 90 minutes to replace, and I had never done it before, so I went slow. 0 Quote Link to comment Share on other sites More sharing options...
JoeliusZ28 Posted September 15, 2017 Author Share Posted September 15, 2017 I replaced the tensioner about 2-3 years ago too. The original sounded like a twin-screw supercharger. I was almost disappointed I had to fix it haha 0 Quote Link to comment Share on other sites More sharing options...
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