Front grind when accelerating right turn

MARK BIRD

MEMBER
2010 CHRYSLER 300
3.5L
6 CYL
4WD
AUTOMATIC
187,000 MILES

Got new tires this morning. When leaving I noticed a grinding sound coming from the front end while turning right at an intersection. Most likely cause, tire rubbing on something, looked everywhere and seen nothing. It needed tie rods, so took it to a garage and reviewed while on the rack and turning wheels, still nothing. After tie rod repair, mechanic and I took it for a ride and noticed the noise was only there when foot was on the gas. Went into a parking lot and found the first sweet spot and when going in a circle, if you pushed the gas it was there, once you let off it was gone.

This is a very noticeable sound, even when the radio is on. So I think it's just coincident, as far as new tires. Mechanic claims left front axle shaft, but want a better feeling. Your input would be great. FYI, no noise when straight or turning left.

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

Hi Mark,

It could be an axle shaft. However, it is curious that this started after you got tires. Did you replace all four tires or did you only get two?

The reason I ask is you noted that this is an AWD vehicle. If that is the case, you must keep the tires relatively close in circumference. When they are more than 1/4 inch off from each other axle to axle, your transfer case will grind during acceleration and turning. The reason is, your front and rear axles are actually spinning at two different speeds. Larger (newer) tires will cover more distance in one revolution than older or smaller tires.

If you replaced all four at the same time, the best way to confirm that it is an axle half shaft is to just remove it and drive the vehicle.

Here is the procedure if you want to do this yourself.

Let me know if you need anything else and I will be happy to assist.

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