Whining/supercharger sound...except no supercharger!
I just bought a 2002 v8 WJ with quadradrive II, yesterday. I was super-pumped about the purchase however have a few questions. I drove the WJ about 1.5 hrs home from where I bought it. it sat outside for about 8 hrs and then drove it to later at night (first night its been around 40 degrees). As soon as I turned out of my parking space i hear a looooooong higher pitched whining noise as i accelerate! Also, accelerating while turning increases loudness of whine. As I stated in my title, it sounds like im winding up a supercharger as I accelerate...but w/o the supercharger! ha
WHAT COULD THIS BE?
Also, had an O2 sensor replaced, and the CEL is still on! it gets cleared, and then comes right back up 5 minutes later. what could thiiiiis be?
The wining is probably power steering, could be air in the system, could be the pump on its last leg. And sometimes ps pumps just always make that noise. Dont ask why, I couldnt tell you, but my camaro does and always has, cant hear it at idle put if your turning while on the gas its pretty loud. Ive put 2 different brand new pumps on it, they all do it, its just the design.
I just purchased an 02 jeep cherokee laredo and it sounds like its doing the same thing yours is with the really loud whining when turning and accelerating. It only seems to do it when its colder and I haven't driven it for about 8 to 10 hours. Once it warms up and the sun comes out it seems fine? My power steering fluid is full so I'm thinking it is the pump as well. The pump costs around $117 and then you have to factor in the labor
could be the trans, mine does it in both my zj and nova. the nova whines all the time in first... the pump is on its way out caused by a smashed trans pan (wheelstands). the zj is due for trans service.
my advice is since you just bought it. change the trans fluid filter, do tune up, airfileter, oil change, transfer case fluid change, and both differantial fluids, that way you know where you stand when it comes to maintance for the vehicle.
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1970 Nova SS -355-Th-350
1996 Jeep Grand Cherokee - 4.0L-
IRO 4.5" - 33" MT's
Originally Posted by -n8man1068
Jeeps don't get stuck. They just take a nap when they're tired of being awesome.
Any chance you have slotted discs on your brakes? They're known to make a whirring noise....maybe not so much like an SC but it's a noise...
2000 Laredo 4.7L Selec-Trac. 177K miles, Leather, 245 tires, tow package, crappy CD changer, full size spare, roof cross-rails & sunroof. Changes & fixes: Rear Addco sway bar & greasble bushings, upgraded headlights, upgraded tail lights, new hood struts (replaced 2X), new rear hatchglass struts, new radiator (replaced 3X), new oil pressure sending unit (replaced 4X), 2 new speed sensors, 2 new door lock actuators, new ignition key cylinder, chrome front tow hooks, Mobil 1 Synthetic 5/30, Purolator Pure One oil filter, EBC slotted & dimpled rotors, EBC Greenstuff pads, new front shocks (replaced 3X), new rear shocks (replaced 2X), new IRO steering stabilizer, new timing chain cover, new water pump, thermostat, new thermostat housing, new high pressure power steering hose, Michelin-X radials, new sunroof assembly, new single-piece lug nuts, new exhaust manifold studs & gasket on driver's side, new Durango alternator. Jeepforum.com sticker, Visit cobaltboatsforum.com when you can!
i have a 1995 zj 4.0 that has started doing the same thing...
at idle it is a low hummm. when i excellerate it gets louder..
noticed it the last few days since it has gotten below 40 deg. here in sc....
if its coming from your engine it could with your belt (pray this is it). make sure its fine if not check your altenator. i've gotten mud and sand in the bearings of the altenator i couldn't figure it out till it died on me on the highway(not fun). once i replaced it whining gone. it goes up when you accelerate because your belt turns the alternator faster.
Midshipmen Patrick 1/C USMMA DD: 2004 Golf GLS TDI 43mpg and 2002 Overland: Zone 4in, 32in Treadwright MTRs, IRO upper CAs, lift gate light mod, Alpine/Polk speakers, and power inverter with USB in dash mod, CB, custom rear swing out tire carrier Build thread [url]http://www.jeepforum.com/forum/f22/apollo21-build-thread-902929/[/url] SOLD