Originally posted by wontgrowup:
I found out the hard way....DON'T change the EGR WITHOUT changing the DPFE...otherwise, you are wasting your time... I picked up both from Autozone for around 100$. It took about 30 minutes to swap themboth, just make sure you have a big honkin' box wrench to take the EGR off!!! I think it's like 1 1/2" inch or something...
Actually, don't bother replacing the EGR valve as they seldom go bad unless you manually confirm it is defective, i.e, leaky diaphram, stuck actuator, or carbon blockage.
Most EGR problems are due to either blocked EGR passages in the throttle body/intake or a faulty DPFE sensor. Those two faults cover over 90% of the failures I have seen on any Ford.
That said, if there is EGR flow at idle when there shouldn't be, the symptoms will include poor idle and lousy acceleration.
Steve
98 Contour SE Sport 2.5 Duratec ATX The wifey's car
89 Taurus SHO - 246K miles
94 SHO ATX - 190K
1997 F-150 5.4L ATX - The Workhorse 150K.
ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!
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