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08-15-2009, 09:35 PM
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#1
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Senior Member
Join Date: Oct 2008
Location: Yuma, AZ
Posts: 154
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growl from front of engine
Today I was driving into Denver on I76 and hit construction. Traffic stopped and then crawled for about an hour at 1 - 5 MPH. When I arrived at the campground in Denver and the engine dropped to an idle I got a growling sound from teh front of the engine like a bearing or pulley going bad. I parked and after everything had cooled off I restarted the engine and the growl was perceptible but much less than before. Any ideas on the cause? I changed my serpentine belt about 2000 miles ago on this prreswent trip but did not replace the idler pulley.
thanks
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Dave & Sherry
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08-15-2009, 09:50 PM
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#2
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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When your in traffic and AC is on the two fans in front of radiator are going to growl and loudly. Once the radiator is cooled noise should fade.
If it has a squeak also it could be your idling pulley
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08-15-2009, 10:13 PM
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#3
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Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
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Could be the compressor clutch on the A/C unit. Does the noise change when you engage and disengage the compressor.
Does the noise get any louder if you step on the brake?
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03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
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08-15-2009, 10:20 PM
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#4
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Senior Member
Appalachian Campers
Join Date: May 2009
Posts: 908
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Chances are you're hearing your fan moving a lot of air for the first time. The sound is comparable to a growl.
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2001 HO Cummins powered Dodge 2500
2014 Sierra 346RETS
Nights camped in 2014-28
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08-16-2009, 07:25 AM
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#5
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Senior Member
Join Date: Oct 2008
Location: Yuma, AZ
Posts: 154
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Engine Growl
Driver, I didn't check about the AC compressor. When we pull out on Tuesday I will check that. The growl was most noticeable at idle. As soon as the engine is reved up it diminishes. It's not the cooling fan, that's a different roar that I familiar with. I ran the steering wheel back and forth and the sound didn't change so I don't think it's the power steering pump.
There's a Workhorse service center in Colorado Springs which is only a few hours south of here. I think I will contact them on Monday and see if I can get it in on Tuesday or Wednesday for a checkup.
thanks
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Dave & Sherry
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08-16-2009, 09:56 AM
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#6
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Senior Member
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 4,501
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It could be the serpentine belt idler pulley. The xref part numbers are on my Free Web Site Engine Parts
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Dale
AKA - Oemy
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08-16-2009, 05:30 PM
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#7
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Senior Member
Join Date: Oct 2008
Location: Yuma, AZ
Posts: 154
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Thanks Oemy, I didn't change it with the serpentine belt so that may be the problem. Hopefully Workhorse Colorado Springs can pinpoint it and do the repairs.
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Dave & Sherry
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08-16-2009, 06:28 PM
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#8
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Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
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Quote:
Originally Posted by Flossy
Thanks Oemy, I didn't change it with the serpentine belt so that may be the problem.
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Oemy knows!
Please let us know what the service center found out.
__________________
03 Adventurer 38G, Workhorse W22
F&R Track Bars, Safety+ , Ultrapower, Taylor Extremes, SGII
TST 507, Blue Ox, SMI, Koni FSD, CrossFire
RV/MH Hall of Fame - Lifetime Member
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08-21-2009, 03:27 PM
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#9
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Senior Member
Join Date: Oct 2008
Location: Yuma, AZ
Posts: 154
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Growl from Front of Engine
Well Driver was right on the money. As soon as I got to Colorado Springs I stopped in at ATS, the Workhorse Service Center here. they said they could get it in the next morning so bright and early I was on their doorstep. Fortunately the engine was making the said noise when I arrived so I left it running and grabbed a mechanic. He popped the hood and said "your ac compressor is going south."
So we parked the rig, and they proceeded to order the part which had to come from Reno. I sprung for overnight express since it was already Thursday and I didn't want to enjoy their hospitality all weekend. This morning the compressor came in and just after noon they had it finished. In the meantime I had them check the brakes since one of my sets of duallys was running 10 - 15 degrees hotter than the other side. They pulled the wheels and the brakes were fine but they went ahead and lubed the slides, etc. All is now well.
To all, I would highly recommend ATS in Colorado Springs, CO. They got me in right away and had the rig fixed in one days time. The prices were fair and they allowed me to plug in for the night and also had water available if I needed it. They were very courteous and professional. I will also give them a high rating on teh Workhorse website.
Thanks to all for the advice.
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Dave & Sherry
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08-21-2009, 04:26 PM
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#10
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Member
Workhorse Chassis Owner
Join Date: Nov 2008
Location: Butler, PA
Posts: 92
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Flossy - Undergoing same problem right now. RV center said air cond compressor. Noise stops when air turned "on" - quits when off. Hoping to get 400 miles back home over the weekend.
Did they replace the clutch or the whole compressor??
Thanks
Gene
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2005 Suncruiser 37B W24 MH2100 Allison 8.1L
currently no toad
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08-21-2009, 05:15 PM
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#11
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Senior Member
Monaco Owners Club
Join Date: Jun 2003
Location: St. Cloud, FL
Posts: 1,528
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AC compressors can seize when they don't get used. Not to say this is why your's quit, but it's always a good idea to run the air conditioner even in the winter. Especially when sitting in storage, or during winter traveling when it doesn't get used that much.
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Bob 2006 Monaco Camelot 40PDQ
US Navy Carrier Battlegroup 1959/1965
Winters in Florida, Summers in Blue Ridge Mountains
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08-21-2009, 06:03 PM
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#12
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Moderator Emeritus
Winnebago Owners Club Workhorse Chassis Owner Coastal Campers Carolina Campers
Join Date: Jan 2000
Location: Conway, SC
Posts: 23,641
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Quote:
Originally Posted by Flossy
Well Driver was right on the money.
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... I only learn of these things when I can observe them first hand. Ed Gray had such a failure and he was parked next to me so I observed and learned.
Typically the clutches are not replaceable and they exchange the compressor as a complete unit -- to answer a follow on question.
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08-21-2009, 07:42 PM
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#13
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Senior Member
Join Date: Oct 2008
Location: Yuma, AZ
Posts: 154
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They replaced the compressor and dryer. I suppose you could just replace the clutch but we did the whole unit.
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Dave & Sherry
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08-23-2009, 07:31 AM
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#14
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Senior Member
Damon Owners Club Workhorse Chassis Owner Forest River Owners Club Ford Super Duty Owner
Join Date: May 2005
Location: Parker, CO
Posts: 3,251
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[quote=Flossy; [/quote]
"To all, I would highly recommend ATS in Colorado Springs, CO."
Hey Flossy since good svc can be hard to find around here sometimes,
Do you have any more info on this 'ATS in Colorado Springs' ?
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Max49
2018 Forest River Georgetown F-53
'08 Jeep Wrangler Toad
Denver, Colorado
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