A low grinding noise.

**GTO Joe** · 03-05-2007, 03:12 PM

Ok, i'm a little confused. No matter what the temperature is, hot or cold, when i start my car and put it into reverse or 1st and begin to accelerate a low grunt/grinding noise can be heard for a split second. I took it to the dealership i bought it from and they told me that it needed new exhaust mounts. Once they changed them the noise persisted and now they tell me its a relay in my car. I took it to another dealer to get their opinion and they are telling me it is an abs sensor. Would a sensor or relay really make a distinguishable grinding noise from inside and outside of the car? And on another note, this has just started happening when i am in first gear and doing a u turn or while im steadily turning left. Any suggestions? 04 gto w/ only 9k miles on it...

**Tide** · 03-05-2007, 03:34 PM

What RPM's are you at?

**GTO Joe** · 03-05-2007, 04:07 PM

Originally Posted by Wade M

What RPM's are you at?

like 1-1.2k rpms ... Like backing up out of a parking lot/driveway slowly or first when you just release the clutch and start going.

**Hi-Po** · 03-05-2007, 05:21 PM

hmmmm.... does it ever happen BEFORE you move? or just when you start moving? You say it makes a grinding noise when you turn? Is it a metal on metal noise? If so, i dont know how the dealership said a relay. How many miles on tha car? I dont understand why these dealerships keep saying sensors and relays. How can a noise go from exhaust mount to relays? The car seems too new for a wheel bearing to start going, but its possible. Mine started out just making a metal on metal noise every once in a while. Then finally spit the bearing's out. Get back to us on this.

**Tide** · 03-05-2007, 06:51 PM

If it was a bearing, you'd think it would be more pronounced at speed.

Any unusual vibrations at highway speeds?

**ls1hoon** · 03-05-2007, 08:23 PM

weird

**astyles** · 03-05-2007, 09:59 PM

mine does the same.......i've been thinking its the breaks.....after i get my new set up on i'll repost to say if it helped

**Sarge** · 03-06-2007, 05:10 AM

Lots of these. Pontiac has warrantied many of them.

**GTO Joe** · 03-06-2007, 08:54 AM

Originally Posted by Sarge

Lots of these. Pontiac has warrantied many of them.

I called General Motors and they contacted the dealership i had it taken too. The dealer tells them one thing, and once i take it in they just say it's a relay. The sound is similar to a tire rubbing a fender. It happens just as i start moving.