badandyrx7

recently my car has been having a wierd/ruff idle. so today i started (its been having hard starts too,especially after i drive and let it sit for a while) the car and noticed the battery had a bunch of white powderery stuff on it? i go to clean some of that stuff off and i hear what sounds like arching(clicking) coming from the trailing coil. is this normal? the clicking i mean or do you think it ha something to do with the hard starts and ruff idle. ive checked almost all other possiblitys like fuel filter,vac leaks but still have the ruff idle

Rx-7Doctor

iTrader: (13)

If you are refeering to a clicking/arcing sounding when it is running that there may be a crack on the tower of the coil or a bad coil wire.

badandyrx7

would that cause a ruff idle? im trying to fin the reson behind the idle problem and this is making me think it ignition related?

Rx-7Doctor

iTrader: (13)

If your coil is arcing out it will cause a misfire which will cause rough idle, rough running, etc....

badandyrx7

ok so im gana replace coils and plug wires i hae a few sets of both and see what happens? why do yu think i have all that crap on my batt.

Rx-7Doctor

iTrader: (13)

That's corrosion. Take the cables off of the post on the batter. Get some hot water and pour over the cables to remove the corrosion. Take a battery post cleaner and clean the posts on the battery and inside the terminals.

If the corrosion is on the cable portion where the covering is than you need to replace the battery cables.

badandyrx7

swapped the coils and wires the clickings gone but the idle is still loopey/ruff sounds sort of like my streetport with webbers? ha ha

Rx-7Doctor

iTrader: (13)

You may have fouled the plugs.