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Old 04-16-2016, 11:53 PM   #1
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Engine smell inside coach in '94 Fleetwood Coronado

Hello all! Hoping you are all doing great!
After having our "new" rig in the shop for nearly a month and a half getting genset generator rebuilt, & regular chassis maintenance. When we drove it today we kept getting engine smell & we are wondering if anybody might have ideas?
We drove to a camping shop & they checked the seal around the interior access to the engine & said seal was good.
If we had the a/c on the smell wan't noticeable, but without a/c on, it really stunk. Is this normal for an older Class A RV?
Everyone says the RV is in great shape, but we can't stand that stink!

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Old 04-17-2016, 07:22 AM   #2
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Location: Yorkville IL for now...
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It’s good that you’re even noticing the odor because it may a sign that your engine or transmission has developed a problem. Very few engines and drive train components fail without warning, but usually the operator either doesn’t notice or worse yet chooses to ignore the warning signs. However, depending on what’s causing the odor it could be from any number of sources. Leaking hot motor oil, leaking fuel, leaking exhaust gases, leaking antifreeze, leaking hydraulic fluid… they all have different odors. Your problem may be something simple such as a technician spilling oil on an exhaust pipe. When the exhaust pipe later heated up the oil on the surface began to smoke. Or it could be something that needs attention ASAP. I suggest you take your RV to a knowledgeable mechanic for a proper diagnosis and repair.

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Old 04-17-2016, 10:31 AM   #3
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No, it's not normal at all.

You have a leak of some sort; it could be an exhaust leak or a fluid leak, all of which could mean you're about to go up in flames. No kidding.

Take it to a mechanic or truck repair shop right way; don't drive it anywhere else or mess with a camper shop. Or call a mobile mechanic. Here's a good source: TruckDown - Connects Businesses
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Old 04-29-2016, 01:00 PM   #4
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Could it be that the smell is coming in through the vent up front. With mine,the fresh air supply came from the front inside of the grill. It's possible the fumes could be coming from there. I wound up rerouting the intake from the wheel well. Albeit it was for a different reason.
1990 28' Georgie Boy, 454, 4bbl, Thorley Headers, Recurved Distributor, 8.75 mpg. RVM 76
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