High Pitch Whine at Start Up

[texasmart1]

muffler bearing? are you serious?

[Padawan]

"Muffler bearing" is just an old Internet joke on car forums, guys. Just like "blinker fluid".

[WhiteNBlack08]

Originally Posted by Smartfor2guy

It's the muffler bearing

Some people can be such smarta$$'s, of course he's kidding, jwright is correct, it's the air pump that helps fire off the catalytic converter when the car is cold, that's why you don't hear it on a warm car. Should run for about 20 seconds then it shuts off.

[racer]

I thought it was the "flux capacitor" at start up...

[GHammerly]

Some times it doesn't work when cold either, I guess the ECU decides when the cat is in heat and if it needs a b@%! job.

[DawnRay]

Mine does the vacuum cleaner noise at first start. Was wondering what that was? Not whiny though.

[yellow smart]

Originally Posted by Padawan

"Muffler bearing" is just an old Internet joke on car forums, guys. Just like "blinker fluid".

I've got a couple cases of this stuff if you are interested.

Yellow-Smart

[jimvw57]

Is it the new style or the old style fluid?? I have a few vintage cars that need topping off. Just finished tightening the piston return springs. I adjust them every 35,000 miles or 6 months.

[SubSlr88]

Dilithium crystal heater unit . . . it'll go away after the crystal is at operating temperature . . . not to worry, a normal sound.

[NeWave]

Don't forget, it has to warm up the neural gel packs in the Smart's computer...