Here's a problem that's been nagging me ever since the car was new. Right now it has about 2500 miles on it. It's a 2006 V6 manual transmission Mustang that has a intermittent idle problem. 2 trips to the dealer have proved fruitless so far - the damn thing never acts up when I get it there. *grumble* I hate intermittents, I'm not too car savvy, but I get 'em all the time as I work in repairing electronics. Symptoms: When out of gear, engine will race up to 2K or so, then rapidly drop off to the point where it almost stalls, then repeat ad-nauseam. Makes shifting a real pain in the ass... I'm assuming that it's acting up when in gear, but it's not especially noticeable then.
Problem seems to occur right from starting the car cold, and will continue all the way to destination - usually to work, about 16 miles or so. It doesn't matter whether the engine is cold or hot. Here's the kicker: if I shut off the engine, then restart it, the problem goes away for the remainder of the ride! The problem is very intermittent, maybe once in every 30 starts or so. Hopefully I've given enough information, but there's something I've left out let me know. If anyone could offer some thoughts on what could be wrong, I'd be most grateful - at this point I'd be willing to try anything.
Thanks.