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Old 08-12-2013, 10:51 AM   #41
gkirk
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Quote:
Originally Posted by slybarman View Post
I forgot to mention that after plugging up this gap, I also disconnected the battery for a bit so the ecu would go through a re-learn.

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The time that my car went through a re-learn, it drove perfectly for the first few days (while it was learning) and then went back to its normal self.

The throttle response during learn phase was incredibly nice. Just in case others do this tweak, I'd leave the re-learn out of it for a better comparison.
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Old 08-12-2013, 11:12 AM   #42
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Afaik, the OP, did not do a relearn. I have done them in the past with less impressive results, but I agree with your point. My thinking was the car might need to adjust for no longer sucking in hot air

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Old 08-12-2013, 07:37 PM   #43
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I plugged this gap yesterday with a few pieces of duct tape.

Today, it was decently hot too, and either it's a placebo effect (i.e. I'm looking for a difference or I'm driving differently) but this seemed to help me.

I'm not going to disconnect the battery. Really don't want to redo all my presets, ect.
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Old 08-12-2013, 08:10 PM   #44
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I have 29K on my Ti now and was still experiencing some shudder on hot starts from a light or in traffic. I tried a K&N CAI a while ago and did not like all the noise so I removed it, but I did notice at that time that the engine and tranny are extremely sensitive to airflow through the airbox. For about the last 20K I've been running a K&N drop-in filter in the stock box and I clean it about every couple of months because of the improvement in driveability with a clean filter.

Having said all this, I decided to try the mod that the OP described just to see the difference (I had broken that rubber strap while installing the CAI so I know it was not sealed well), and I can verify that there is an improvement in launches and tranny smoothness throughout the upshift pattern. I did two 35 mile freeway runs today in about 95 degree weather and did not have a single instance of shudder when driving on surface streets after coming off the highway. I also noticed that the sound from the airbox during acceleration is a deeper and slightly louder tone than before the mod, so something has changed for the better.

I plan to do an ECM reset tomorrow and will post results after a couple of hundred miles for the learn mode to finish it's tweaks. From the initial impression though, I'd say !! A ten cent mod that's worth the effort.
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Old 08-13-2013, 07:20 AM   #45
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Another good ride in today. This seems like the real deal. The cars very worst (and dangerous) habits seem gone. Fingers still crossed.

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Old 08-13-2013, 07:49 AM   #46
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I looked at mine this morning, and it seems to be very close to sealed with the rubber strap opened. Has anyone taken a picture of the gap that you are speaking of? I wonder if this is random among cars, as I have seen people with 12 and 13 MY cars saying that this has helped them.
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Old 08-13-2013, 08:55 AM   #47
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Quote:
Originally Posted by MetalMuffins View Post
I looked at mine this morning, and it seems to be very close to sealed with the rubber strap opened. Has anyone taken a picture of the gap that you are speaking of? I wonder if this is random among cars, as I have seen people with 12 and 13 MY cars saying that this has helped them.
I suspect this is an assembly issue that will be present in some, but certainly not all, cars. In my case, the larger intake tube (on the left looking toward the back of the car) was aligned alright on one side, but had a gap of maybe 4-5mm on the other. All of this is compounded by the rubber strap, which is probably intended to seal such gaps, not fitting at all well. Like the alignment of the intake tubes, the fit of the rubber strap may be an issue on some cars but not others.

In any event, even if the gap is not large, a layer of tape over the seam sure can't hurt.
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Old 08-13-2013, 09:05 AM   #48
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That is exactly what mine looked like. It almost seemed like the tube was cut wrong leaving a gap on one side. Im also not sure the bottom of the tube was completely sealed either so I ran some tape under there as well. I was considering using a ring of putty like the type used to seal where wires and pipes come into the side of a house.

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Old 08-13-2013, 09:13 AM   #49
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Btw, I think in the end this will have to be a recall by Ford. The throttle lag this caused is an absolute safety hazard. No doubt about it.

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Old 08-13-2013, 12:24 PM   #50
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Quote:
Originally Posted by slybarman View Post
Btw, I think in the end this will have to be a recall by Ford. The throttle lag this caused is an absolute safety hazard. No doubt about it.

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That's the nature of vehicles with electronic throttles. Not just Ford, unfortunately.
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