81 Ford f100 4.9 inline 6 dips rpm during idle sometimes dies. Possible problem?
Hey I've been working on an 81 Ford f100 4.9 online
6 manual. She runs very well. The only issue I've
been having is that sometimes when I let it idle after
driving (usually about 30 minutes into the drive) it
sometimes stalls. This usually happens during stop
and go traffic or if I'm idling up slope on a hill. It
sounds like the engine is normal then the Rpms
drop very low and you can hear a low resonating
rumble. If I don't pump the gas while idling it
sometimes dies. I've emptied about an entire can
into the carb and replaced the air filter as well as
put some new oil. Any thing i can take care of
myself before I have to take it to a mechanic?