Saturday, December 6
Let's play Internet MechanicMe:
2004 Automatic Toyota Corolla.
Weird grinding noise when engine is cold and when it's in reverse.
Noise coming from under the chassis/floorboard area.
Noise disappears after engine is warmed up and car is in drive.
You:
Diagnose it.
(Hint: Valet parker dude says "Motor Mount Bearings" for the win.)
8:12 PM |
Comments (14) |
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I haven't a clue! You need to call Car Talk :-)
I think its the doo hickey and you are gonna need a thingamajig.
Hamsters.
Maybe it is a brake problem.
Sorry, dude, sounds like transmission troubles. If you're lucky, it's just low on transmission fluid somehow.
You want me to ask my husband when he gets up? He'd know.
Well, my know-it-all hubby when it comes to cars says you are looking at some transmission woes. Either that, or your torque converter. Good luck with that. Move someplace warmer and maybe it won't make that noise so much.
How many miles on the car? The noise that you mention on startup when cold (when it's not in reverse), is it the transmission in park when you hear it?
It could be exhaust mounts that are making the noise until the they warm up and stretch. Other possibilities are Catalytic converter issues, engine mounts or transmission.
My advice, and this comes from experience, don't give the loaner car back to the dealership.
Jingle Bells, Batman Smells,
Robin Laid an egg!
Batmobile lost its wheel,
and Joker got a-way-aa!
Our guess is center bearing on the drive shaft. Is this a contest? I never win anything...
The answer is clear, don't put it in reverse!
Front wheel drive, right? If it's under the floor, that's a ways from the transmission.
Exhaust pipes don't usually grind unless they are on the ground (look and see if the exhaust pipe is on the ground, just in case)
Brakes grind, but not sure what that has to do with cold engine.
Coffee grinds, and suddenly I needs some. Best of luck.
I had this issue once in a Mazda and I changed the plugs, wires and umm.... the what a mah digger they go in (I can't think of what it is called) and it stopped. But in my case the only reason it did it when it went in reverse was the only time I ever went in reverse was first thing in the morning before it warmed up. Every now and then it would jerk even warm, too. Maybe you could get lucky and it's something cheapo like that.
Whack it with a hammer, then crank the radio up. That'll take care of it.