2006 ford five hundred high rpm low acceleration. Replaced items: spark plugs, oil & filter, coil pack (#3 cylinder), & EGR Valve. Note: exhaust has leak in the exhaust flex pipe.

40

Asked by Jan 16, 2015 at 12:59 PM about the 2006 Ford Five Hundred SE

Question type: Maintenance & Repair

Started as coil pack (#3 cylinder ),  changed
all spark plugs, then had vacuum leak, and
replaced EGR valve, now have exhaust leak
at the flex pipe ordered part (still needs
installed). Acceleration seems to be getting
weeker and weeker every day. All within
last 7 days 150 miles. Problem occurs
intown and highway.

3 Answers

285,475

is the Service Engine light on? Does it feel like you still have a misfire?

2 people found this helpful.
40

Light comes on at first then goes away after car warms up. Not sure what the light is yet just started 1 day ago for the light. Misfire gives a shutter to the throttle response, rpm acceleration is smooth just no vehicle acceleration. High rpm low acceleration. Going to get car and check the light now.

1 people found this helpful.
40

No light, vehicle acceleration was slow to 50 then started to decelerate after 7 miles could not keep car abouve 30mph once pulled over car would shutter and act like it wanted to die. (500 or less rpm shutter)

3 people found this helpful.

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