I was letting my car idle to see if the fan would kick on, well it fired right up and idled good for a bit, but then once it just started to warm up the idle dropped almost to nothing and it was surging up say from 100-400 on the tach. I guess my question would be why would it surge like that? would this be a distributor problem?
I'm pretty confused on what is actually causing this? I'm thinking I might have to take it in somewhere for a tune up
