Asked in Ford Taurus
Ford Taurus

My 99 Taurus only runs for twenty minutes and will not start until it cools off why?

Answer

Wiki User
09/30/2008

This would be much easier to diagnose if you can get the car to the auto parts store (ie PartsAmerica or Autozone) and have them run the codes, then search the forums on Taurusclub.com to see what others have found.

Otherwise, most likely culprits (in order):

EGR valve

IAC (intake air control)

DPFE - Differential Pressure Feedback EGR

This is, of course, not everything that could cause the issue. Get the codes checked and you can find out for sure.