engine accessory noise, 2006 caravan
#549326
12/08/09 11:19 PM
12/08/09 11:19 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
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I Live Here
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Grand Haven, MI
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has anyone ever experienced any whining noises coming from the accessory drive on a caravan? our '06, if driven at highway speeds for an extended period of time (greater than an hour) develops a noticeable whine on the passengers side. it varies with engine speed, not road speed, and it is very noticable in the cabin, but barely audible outside of the vehicle.
vehicle has 47k miles on it, I replaced the idler pulley last winter about 8k ago thinking that was it. it seemed to go away for a while, but it's back now. it seems to be more pronounced in cold weather. I'm thinking either power steering or water pump, since they're on the rear of the engine.
any help is appreciated.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: engine accessory noise, 2006 caravan
[Re: patrick]
#549328
12/09/09 01:48 PM
12/09/09 01:48 PM
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Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
WILD BILL
Senior Member of the Junior Dragster Club
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Senior Member of the Junior Dragster Club
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Posts: 10,542
BROOK PARK, OH
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It could also be the tensioner pulley. I usually try to get a mech stethescope as close to the pully mounting area as possible to pin point the noise. Not easy with the engine running 
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Re: engine accessory noise, 2006 caravan
[Re: WILD BILL]
#549329
12/09/09 03:32 PM
12/09/09 03:32 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
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that's what I assumed last winter, and that's why I replaced the tensioner pulley...the new one has less than 10k miles on it, I wouldn't expect it to go bad that quick.....
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: engine accessory noise, 2006 caravan
[Re: WILD BILL]
#549331
12/09/09 05:00 PM
12/09/09 05:00 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
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whoops, screwed up the original post. I replaced the tensioner pulley last go around. the I pulled the idler pulley off and couldn't hear any noise when spinning it and spun smooth. the tensioner pulley was a little more suspect at that time, I didn't really hear any noise, but when you spun it it felt rougher than the idler pulley.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: engine accessory noise, 2006 caravan
[Re: Spode]
#549334
12/09/09 05:57 PM
12/09/09 05:57 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
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OP
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thanks for the ideas. spode, were you able to hear the noise with the belt off, spinning the WP by hand?
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: engine accessory noise, 2006 caravan
[Re: patrick]
#549336
12/10/09 04:45 PM
12/10/09 04:45 PM
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Joined: Dec 2009
Posts: 242
Upland, California
Spode
enthusiast
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Joined: Dec 2009
Posts: 242
Upland, California
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Quote:
thanks for the ideas. spode, were you able to hear the noise with the belt off, spinning the WP by hand?
I almost bought a tensioner but I noticed the weep hole had some leakage and I had a lifetime warranty on the pump so I replaced it and the noise stopped. 
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Re: engine accessory noise, 2006 caravan
[Re: patrick]
#549339
12/10/09 07:39 PM
12/10/09 07:39 PM
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Joined: Feb 2009
Posts: 327
wisconsin
mod381
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Posts: 327
wisconsin
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Quote:
has anyone ever experienced any whining noises coming from the accessory drive on a caravan? our '06, if driven at highway speeds for an extended period of time (greater than an hour) develops a noticeable whine on the passengers side. it varies with engine speed, not road speed, and it is very noticable in the cabin, but barely audible outside of the vehicle.
vehicle has 47k miles on it, I replaced the idler pulley last winter about 8k ago thinking that was it. it seemed to go away for a while, but it's back now. it seems to be more pronounced in cold weather. I'm thinking either power steering or water pump, since they're on the rear of the engine.
any help is appreciated.
It needs the power steering resovior replaced and fluid flushed. There is a filter in the resovior and after you drive it for a while it is plugging the filter and starving the pump for fluid,after you shut it off the fluid drains back and cleans the filter back out untill you drive it again.
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Re: engine accessory noise, 2006 caravan
[Re: mod381]
#549342
12/11/09 09:07 AM
12/11/09 09:07 AM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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Quote:
Quote:
has anyone ever experienced any whining noises coming from the accessory drive on a caravan? our '06, if driven at highway speeds for an extended period of time (greater than an hour) develops a noticeable whine on the passengers side. it varies with engine speed, not road speed, and it is very noticable in the cabin, but barely audible outside of the vehicle.
vehicle has 47k miles on it, I replaced the idler pulley last winter about 8k ago thinking that was it. it seemed to go away for a while, but it's back now. it seems to be more pronounced in cold weather. I'm thinking either power steering or water pump, since they're on the rear of the engine.
any help is appreciated.
It needs the power steering resovior replaced and fluid flushed. There is a filter in the resovior and after you drive it for a while it is plugging the filter and starving the pump for fluid,after you shut it off the fluid drains back and cleans the filter back out untill you drive it again.
I'll try dig into it this weekend, does the whole reservoir need to be replaced, or just the filter?
Rockauto shows a couple different power steering filters on their website, that look like this
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: engine accessory noise, 2006 caravan
[Re: mod381]
#549344
12/20/09 04:48 PM
12/20/09 04:48 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
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I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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thanks to everyone, especially mod381. replaced the resivoir, problem solved!
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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