Idl at 800rpm but when light and heater on it drop to 700 or lower

[pink godzila]

AS the little say, when I turn on the head light or heater my rpm drop to 700 or lower...

[japslapsilvia]

check for loose grounds at the alternator, or maybe alt is taking a crap.

[!Zar!]

Yeah, sounds like an alternator/grounding problem.

[pink godzila]

Thanks all, Ill check them this weekend..

[yosh]

if not alternator could be junk batery or need of better batery, do u have a system or e fan that could maybe be sukin up alot of juice