Funny acceleration noises after running over a truck tire?

(2011-06-24 14:20:14)

1. CNGLaw13 Says: I have an '08 PT Cruiser and got behind a turck earlier today to exit the freeway only to see one of the layers of his tires come flying out from under his trailer and although I tried to avoid it, the tire piece went under my passanger side front and tire. I pulled off the freeway, popped the portion of my bumper and liscence plate back into place that the tire had knocked out and now when initially accelerating, I can hear a loud gutteral sound coming from the car but it goes away in seconds unless I accelerate hard again. It does not make the sound when accelerating in park, only in drive. It is not leaking any fluids save for a slight water drip from the AC. Any ideas what this might be or how much it might cost to fix?

2. SlightlyDusty Says: Go to a service center and ask them to put it on the lift and check. Some will do it for free during an oil change

3. roger Says: you have some undercarriage damage, probably to your exhaust system. Since you know it was a hard hot piece of rubber, go to a muffler shop, tell them what happened and let them get the car on a lift and look, a good shop will do the check for free, and as to the damage, it depends on what happened, geti it in sooner, not later in case the exhaust is smashed almost shut (not good for the engine) call your local mechanic for a referral if you do not know a good muffler shop offhand.

4. bonehead Says: it's the plastic "skid plate" under your motor rubbing against the crank pulley on the bottom of your motor. It must have gotten bent when you hit the truck tire.