Question about 1994 Buick Park Avenue

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I'm getting a growling noise,seem to be associated with drive train.No vibration,just noise.Dos the transmission fluid need to be drained and replaced?

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Firstly check the level of transmission fluid. Then check the color and smell. It should not be black and smell like something burned.

Posted on May 19, 2011

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Does the vehicle make any noises while driving? If there is a "growling or roaring " noise associated with the vibration, check the right front hub bearing. If there are no noises and only vibration, check the right front upper ball joint and control arm bushings. The Trailblazer's upper ball joint and control arm bushings become worn and cause the tire and wheel assembly to shimmy while driving. The vibration stops when turning left because of weight transfer to the right side which keeps the wheel steady for a moment. Also, check the tire for irregular wear.

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Have you had your transmission serviced, lately. Something in your drive train may be causing this . However, it is only sporadic. The fluid level may be too low or the pump may be going bad.

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It could be the preliminary vibration caused by the deterioration in a universal joint, forewarning you that it's on the way out. Good Luck Vern

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When driving our 2001 montana, the noise gets really loud. Like a loud humming. What could be causing this noise? We had one wheel bearing replaced on the front left wheel which was a little loose, but...


"Loud humming" could describe many of the noises that your minivan may make. Let's start with the basics: do you hear the noise only when the van is in motion or also when the van is stopped? If you can hear the noise even when the van isn't moving, you're most likely looking at something in the engine compartment. Your serpentine belt and the alternator bearings (and, to a lesser likelihood, your power steering pump) are all sources of noise "in there." An A/C compressor on its last legs may also vibrate and cause a humming sound, though that's usually described as more of a "growl."

If you can only hear the noise when the car is in motion, the next question is whether it changes pitch/volume due to engine speed or due to road speed? For example, does the noise get quieter (momentarily, perhaps) when the transmission shifts gears? Or, does the noise simply get louder/change characteristics in a linear way as the van gets faster and/or slower?

Depending on the mileage on your van, the transmissions have been known to get quite noisy after a while, especially if you are doing sustained high-speed driving. The solution for that particular problem isn't cheap, as it involves replacing or rebuilding the transmission (the shift bands may be fine; the noise is caused by bearing wear, seal failure, and other sundry issues that still require pulling the transmission). A less expensive problem is that you might have a problem with one of your tires--a tire with separating belts may make a noise like this as it slowly tears itself apart. If you hit something hard with the undercarriage of the van, you might have a drive shaft that's slightly bent and hence is causing some sympathetic vibrations in the car because it's out of balance.

Depending on the cause, your humming sound may be one of those things that comes with driving an older car--or it may be a sign of the imminent failure of something serious. It's worth getting things checked out again to try to find the cause of the problem. You'll feel a lot better knowing what it is, even if it's something you choose not to fix.

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Honda Odyssey 2005 with vibration/growl at cruising speeds. My Odyssey has a vibration/ growl when at crusing speeds. Under exceleration it appears to be fine but once you reach crusing speed (especially...


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Drain the transmission fluid into a clean container once it is all drained tip it into another container slowly and look for a metalic shine to it and at the bottom of container 1 if there is any fillings, bits of teeth then sadly you will have to remove your transmission and get it overhauled , but if your oil is clean and free of any metal refill your transmission with new oil and have a look at your drive shaft then back to your rear drive train as some times vibrations and noises can be amplified through your vehicle

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My power steering pump makes a growling noise even when the car is idle. The noise is louder when I turn the steering wheel. The power steering fluid has gotten low a couple of times and gets foamy.


if gets low definitely a leak foam is pump mixing fluid with air roar is pump cavitation check lines or pump for leak keep fluid at recommended level air bound unit can cause steering difficulty and or failure if need have trained mech look into problem

Oct 11, 2009 | 1999 Oldsmobile Cutlass

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The manual transmission seems noisy so I wanted to replace the fluids or at least add some Z-Max to try and quiet the noise. I cannot find the add and drain plugs anywhere. There must be a way to do this!


Condition: Some customers may comment on a grinding or rattle type noise coming from the transmission. The noise usually occurs with the transmission in first or second gear at low RPMs and can be intermittent.
Cause: This condition may be originated by the natural harmonics of the engine that leads to a vibration in the transmission.
Correction: There are two separate noises. Follow the diagnostic procedures listed below to determine which noise the vehicle has and perform the outlined repair. If you are comparing like vehicles, you must compare vehicles with the same motor and similar mileage.

Diagnosis for Noise #1
This is a very distinct noise that is usually much louder than the second noise that can be associated with this transmission. If the vehicle is not making any noise when trying to verify the condition, it can be induced by making several tight left hand circles with the vehicle at normal operating temperature.
Making a sharp right hand turn will usually stop the noise. While the noise is occurring, in order to
distinguish between the two noises, you can press lightly on the clutch pedal without releasing the clutch and the noise will NOT go away or change. As a second diagnostic aid, while the vehicle is making the noise, shift to third gear and the noise will stop. If the noise is determined to be this type, perform the repair for noise #1.

Repair for Noise #1.. Replace the transmission fluid with Saturn Manual Transmission Lubricant, P/N 21018899. Overfill to a capacity of 2.4L (2.6 qts). A possible side effect of this repair may be a higher shift effort.
Solution #2 Capacity of 2.4L (2.6 qts). A possible side effect of this repair may be a higher shift effort.
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in the General Information
sub-section of the appropriate Service Manual.
2. Place a suitable container under the transmission assembly.
3. Remove the drain plug located on the bottom of the transmission and completely drain the fluid.
4. Re-install the drain plug. Tighten the drain plug to 38N·m (28 lb ft).
5. Lower the vehicle.
6. Remove the fill plug located on the top/middle of transmission on the driver side, near the red
vent cap. If you use the check level plug on the side of the transmission, you will not be able to
overfill the transmission.
Important: Fill the transmission to the amount specified. Too much lubricant will cause the fluid
to leak from the vent. Not enough fluid will defeat the purpose of this bulletin.
7. Fill the transmission with 2.4L (2.6 qts) of Saturn Manual Transmission Lubricant P/N 21018899.
DO NOT USE THE RED VENT CAP TO FILL.
8. Re-install the fill plug. Tighten the fill plug to 38 N·m(28 lb ft).
Diagnosis for Noise #2
This noise, commonly referred to as gear rattle, can be induced by lugging the engine in any gear, but is
usually most noticeable in first or second gear. While the noise is occurring, if you press lightly on the clutch pedal without releasing the clutch, the noise will be reduced or eliminated.
Repair for Noise #2
Do not attempt to repair this noise. This is a characteristic of the vehicle and any vehicle equipped with a manual transmission can be made to make a similar noise. Driving at slightly higher engine RPM levels will reduce this noise.

Oct 03, 2009 | 2001 Saturn L-Series

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