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12-26-2017, 01:25 PM
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#1
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Junior Member
Join Date: Sep 2017
Posts: 14
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Class A Winnebago making intermittent noise
Hey I have a Winnebago elante that is making a rattling noise as i drive. It only happens when i am holding a steady speed and lessens as i decelerate. The noise is not there at all when i accelerate. The noise seems to be comming from the transmission area. Does anyone know what might make a noise like that? Thanks.
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12-26-2017, 08:32 PM
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#2
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Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe according to the Rinpoche, of the SF monks.
Posts: 8,048
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Block the wheels while parked on a level surface, release the park brake and check the u-joints for any play.
How old and what size/drive train do you have?
Happy Glamping.
__________________
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
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12-26-2017, 10:53 PM
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#3
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 24,220
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U-joints or driveshaft carrier bearing would be my first suspicion.
__________________
2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
White '24 Jeep JLU Wrangler Willys
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12-27-2017, 10:22 AM
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#4
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Senior Member
Join Date: Nov 2017
Location: Citra, Florida
Posts: 1,396
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Not wanting to insult but if you dont know how to check the U joints you lay underneath the rig and twist the driveshaft back and forth. If there is any movement at all have a shop look at it. With a car you can do this with one hand but the rv might require two hands with gloves and a bit of muscle. I believe Lt Dan is referring to the pillow blocks on the driveshaft and you might have to push up or down to check them. Please correct me if I am wrong Dan.
Good luck and keep us posted.
__________________
Good Luck and keep us posted please. "Q"
1999 Newmar, Mountain Aire 3768, V-10, CAI, Headers.
"Spending our kids inheritance one trip at a time"
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12-27-2017, 11:18 AM
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#5
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Junior Member
Join Date: Sep 2017
Posts: 14
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That sounds about right, however when i checked everything seems to be tight
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12-27-2017, 11:24 AM
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#6
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Registered User
Join Date: Dec 1969
Posts: 30
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Rattle? I'd be looking at heat shields.
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12-27-2017, 11:49 AM
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#7
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Senior Member
Join Date: Apr 2015
Location: Rogers, AR
Posts: 2,874
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An exhaust heat riser valve, if you have one, does just what you describe.
__________________
2019 Fleetwood Discovery LXE 40M w/2021 Equinox
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12-27-2017, 08:45 PM
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#8
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Junior Member
Join Date: Sep 2017
Posts: 14
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I am unfamiliar with the heat riser valve. How would i check it ?
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12-28-2017, 08:07 AM
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#9
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Junior Member
Join Date: Sep 2017
Posts: 14
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This is on a chevy 454
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12-28-2017, 08:27 AM
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#10
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Senior Member
Join Date: Nov 2017
Location: Citra, Florida
Posts: 1,396
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Quote:
Originally Posted by alank
An exhaust heat riser valve, if you have one, does just what you describe.
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Oh that is right I had forgotten all about the heat riser.
Good call.
__________________
Good Luck and keep us posted please. "Q"
1999 Newmar, Mountain Aire 3768, V-10, CAI, Headers.
"Spending our kids inheritance one trip at a time"
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12-29-2017, 05:39 AM
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#11
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Senior Member
Join Date: Nov 2017
Location: Citra, Florida
Posts: 1,396
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https://r.search.yahoo.com/cbclk2/dW...c=X3IDMgRydAMx
WOW I did not realize this link would be that big. Anyway hopefully this will bring up a picture. It is located on the drivers side of the motor between the exhaust manifold and the exhaust pipe. It holds the heat in the motor until it warms up and also rattles eventually. Wont hurt anything but can be annoying.
Good Luck and keep us posted
__________________
Good Luck and keep us posted please. "Q"
1999 Newmar, Mountain Aire 3768, V-10, CAI, Headers.
"Spending our kids inheritance one trip at a time"
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12-29-2017, 11:20 PM
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#12
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Junior Member
Join Date: Sep 2017
Posts: 14
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Thanks. Sorry for the late replies. ive been traveling for the last few days. Finally made it home where i can start to dig into this a little more. Ill let you guys know what I find.
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12-29-2017, 11:35 PM
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#13
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Senior Member
Foretravel Owners Club
Join Date: Apr 2016
Location: Home is Where WE PARK IT...
Posts: 6,159
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Something else to check while you are looking at the GM engine... On GM chassis they routed the main wiring loom inside the left frame rail past the exhaust manifold.
Make damn sure that the wiring loom is securely attached to the frame rail and that the heat deflector is in place.....Ours was not and fried (melted) all the wires into a big glob shorting everything out..Got that sorted out (after a tow home) then sold the coach
__________________
Retired truck owner/driver,
Sign on this "Shack" says "Foretravel"
being pushed by an '06 Scion xB
SKP's of Livingston, TX
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