hey my car is bogging and hesitating before 3000rpm and i thought it was a number of things...so i replaced the 02,cap,rotor,wires,plugs and fuel filter... it slowed the bogging down a tad..but still happens... the dizzy cap had lots of yellow dust in it..i blew it out with the compressor...do u know wat it could be...any help is appreciated...thanx xtina

 

pretty sure its normal..its from the spark jumping to the terminals and chippin away at them a lil.

 

its definatly spark. the yellow dust is no biggie, try testing your coil and ignitor.... r u hot?

 

It means you need to wipe it out of there and clean up the terminals inside the cap.

 

A little bit of dust is normal.

Rusty dust is sign of dead bearing/dizzy