Have a 2004 impala with howling noise from the front?

Could be: drive shaft, wheel bearing, alternator, tire or....... Any vibrations? Location of noise? does it get louder with direction change?

sounds like the cv joints have gone bad on axle, get underneath and grab the axle and see if it wiggles or moves. if its a howling noise, its a wheel bearing!

I seen this before and is the upper rear axle support, or the engine support just open your hood and see if the motor move to much, or get on the back the car and look under to see it the axle move to much wile some one is shifting. MAKE SURE TO APPLY EMERGENCY BREAK

Need more info...front end you say... A particular side? Is replaced tire the same as other 3 tires? hear it while driving, or braking, or both? Hear it more steering left or right or going around a corner?

Could be a front wheel/hub bearing is my only guess at this point. Howling or groaning could also mindicate a transmission problem.

Have you tried adding power steering fluid or you may have a loose belt

maybe a wheel bearing if you are driving and cut the wheel one way the noise should increase cut the wheel the other way noise should go away

Hello! This could be from a few things - you could have a differential pinion gear that is misaligned and that will cause a howling noise - or it could also be a wheel bearing. Check your differential fluid and it might be worthwhile changing it.

Hope this helps and good luck!

-KCGTO Dad

The problem is almost always caused by the clips that hold the clutch disc in place on the po-si rear-ends.The clip will come lose and catch between the carrier clamp and cause metal parts to be deposited in the housing causing the front and rear pinion bearing to wear. Howling while accelerating is the rear pinion bearing. Howling while decelerating is the front pinion bearing. Sometimes you can get by with just replacing the clips and pinion bearings. Clips can be ordered out of California. For around $70.00 .The dealer will want to sell the entire assembly. Which does not include the pinion and bearings. The longer you go the more damage that will be done. If you can't do this yourself. No one is going to repair just part of the assembly and warranty.

Looked it up in Chilton's, confirmed in http://www.obd-codes.com/trouble_codes/

P0481 Cooling Fan 2 Control Circuit Malfunction

Each fan will throw a different code. See 3 fans listed for your model. Here's a link for the wiring schematic: http://www.chiltonlibrary.com/content/images/WD/GM/014/WD_GM_014788.pdf


Best of luck.
Greg

Hey.......my 2003 Vue did the same thing. The rear wheel drive was bad. Had it disconnected and now I have front wheel drive. No more howling