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Old 05-21-2021, 08:16 AM   #1
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Exhaust question

Hi, Last year I purchased a used 2012 Tiffin allegro open road, everything as been great but I am questioning the exhaust as it ends at the rear tires but in the middle of the coach. Seems to me it should exit on the side or rear but I have not found any info regarding the exit point on this model. Any help would be appreciated.
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Old 05-21-2021, 08:37 AM   #2
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I'm sure you now this but!!! No exhaust pipe end opening should be located under the vehicle. It has to be located so the fumes won't rise, hit the floor area with the potential of entering the vehicle.

Locate the end of the pipe and have a shop extend the pipe so it exits properly. Exactly where is exits should not matter. Most RV's exit on the side.

With standard vehicles (cars & trucks) 99% of the time the pipe exits on the side opposite the fill for the fuel tank. My guess is that's for safety reasons.

On our RV the tail pipe exits on the drivers (left) side about 2 feet in front of the rear wheels. It also sticks past the side of the RV several inches. That makes sense!!!

The fuel fill door is 9 feet down the drivers side past the tail pipe. I guess they figured it's far enough away to not cause any issues. What ever those issues might be.

I guess the fuel fill door should be on the drivers side for ease of knowing where to park the RV to get access to the gas hose.
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Old 05-21-2021, 08:38 AM   #3
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Are you saying the exhaust pipe does not go to the outside edge of the coach, but instead it ends underneath the coach? Meaning when stopped the exhaust is drifting upwards into the coach? Doubt if this is legal, sure as heck isn't safe! The exhaust absolutely has to exits outtside the coach perimeter.
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Old 05-21-2021, 08:52 AM   #4
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Mine is a newer model of the 32SA, but the exit of the exhaust is just ahead of the rear wheel over the wet bay. I would quickly find a competent muffler shop and get them to redo the tailpipe. You might even find evidence of old exhaust hangers under your unit.
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Old 05-21-2021, 02:51 PM   #5
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Thanks everyone for your input, we purchased this LY in VA with a fresh inspection and then transferred to PA with another fresh inspection, no issues found. I was adjusting tire pressure when I noticed were the exhaust ended and I knew this was not correct. I will exit it in front of rear tires. Thanks again.
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Old 05-21-2021, 03:10 PM   #6
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Quote:
Originally Posted by SuperDuty12 View Post
Thanks everyone for your input, we purchased this LY in VA with a fresh inspection and then transferred to PA with another fresh inspection, no issues found. I was adjusting tire pressure when I noticed were the exhaust ended and I knew this was not correct. I will exit it in front of rear tires. Thanks again.
If you're not going to tow, exit the rear and eliminate the bend in front of the tire? I see that twofold: 1) no heat blasted at the rear tire and 2) straighter exhaust (performance gain?).
The only downside, I can see, if you're going to tow is possible exhaust soot on the toad.

Just a thought.
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Old 05-21-2021, 06:57 PM   #7
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Personally I would leave it where Ford placed it. The longer the pipe the more back pressure. If itís not extended past the body and just outside the rear wheel then itís not in the proper place.
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