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i have a 1997 ford areostar v6 3.0 liter motor,,,The engine idle is erratic and surges ive replaced the plugs,plug wires,air filter,fuel filter and vacuum lines and yet it still idles erratically and surges any info would be great

The car can sit and idle steady all day long at 750 rpm in PARK.  When car is warm and put into gear, the idle drasticly drops and idles rough. ( car doesn’t always stay running. )    The car has new timing belt put on by the dealer, new plugs, wires, module, and air cleaner.  Can you give me any ideas to try and correct my problem?  The engine is a 2.0 liter, non turbo.

have to prime the carb to get it started sometimes, and will run rough sometimes even after warmed up, got to be simple right??? Any ideas of what i need to check?

My car shakes a lot when stopped.  What is wrong.

why does my cars idle fluctuate speratic it’s a manuel and i already swapped the ilde air control valve but it was a salvaged one. anyway suggestions on what it could be would be greatly appreciated

I have a 2000 Ford Crown Vic that has periodic idling problems. It happens about every 2 weeks. Right when I turn the key I know whether its going to be a problem or not. If it is acting up I have to give it gas or it will cut out. A lot of times if I wait a few minutes and try again it will be fine. Lately its been taking longer than a few minutes.

I have a 03 Chevy Blazer 4.3L Vortech 4X4 automatic. It has just recently strated to idle rough and has died on me twice now. There are no warning light on either. Any ideas?