I am having a hell of a time sorting out the whats wrong with the hesitation and chocking when I am in drive idle and take off.. I just had an awesome leak with the power steering pump and it sprayed about the engine compartment some , mostly on the left side belt area.. as All this occurred my 2001 sable with a DOHC 3.0 Duratec engine started a nasty choke in drive while idling with hesitation during in drive acceleration.. I am a suspension guy so working with the engine is newer to me.. but if there are obvious items that need replaced I can knock it out... After looking around I am noticing that what i am describing is looking towards the EGR Family.. The valve itself has a vac hose connected to the top but there is no vacuum in idle... Is that normal or do I need to open conduit and start replacing tubes? I need some ideas
Sounds like it could be a misfire. Is your check engine light on?
First thing to rule out is a dirty air filter. I've seen people with the same complaint have a super clogged up air filter.
There should be no vacuum at idle. The EGR valve stays closed at both idle and WOT. You can test if it is working correctly by popping the cap off of the EVR (EGR Vacuum Solenoid mounted on the passenger side of the upper intake, has a round cap) and place your finger on the nipple inside it with the motor idling. If it stalls or almost stalls, the valve is working correctly.
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2008 Mercury Sable Premier
2014 Ford Focus Electric
1997 Mercury Grand Marquis GS
1991 BMW 850i E31 M70 V12
Moved On: 2000 Sable LS Premium Duratec
NICE... I will do that in the morning... First thing.. Air Filter is good .. First thing checked... and I need to double check the part your speaking of... not you said it has a cap on it that you can lightly pry off and does this part have a sponge filter? if so I will know right where to go and I did renew that sponge filter in case power steering fluid mist clogged it up ...
It's weird.. it has a super smooth idle with no load but when thrown into drive it has the described prob.. to describe better .. there will be smooth power then speratic hesitation mixed with normal operation... with no pattern ..