Posted on Jul 28, 2010

The engine hesition sometime 04 expedition 5.4

Th e engine hesition sometime went going up hill run good

1 Answer

Anonymous

Most likely you have a bad COP (Coil On Plug) .
Maybe more than one. Very common ford problem for last 12 years.
If you get a MIL Light on the dash (the wrench),check for a PO300 Code.
A PO304 would be coil #4,PO306 #6 Etc.
Cyl 1 thru 4 on pass side
Cyl 5 thru 8 on driver side,front to back

Also hills cause a hi engine vacuum and thus a possible EGR Valve going bad. You can unplug the vacuum lines and plug, to diagnose that issue.

Also leave the EGR disconnected if your working on coil issues. Just note the MIL light will stay on all the time,and remember to check your 300 codes if you feel a hesitaton or miss.

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04 Ford Expedition trouble accelerating.Struggle to get to 30 mph Engine light with code p0174 system too lean bank 2. P0172 system too rich bank 1. What to fix?

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The engine hesition sometime 04 expedition 5.4

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2004 Expedition

04 Ford Expedition trouble accelerating.Struggle to get to 30 mph Engine light with code p0174 system too lean bank 2. P0172 system too rich bank 1. What to fix?

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The engine hesition sometime 04 expedition 5.4

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Anonymous

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Not finding what you are looking for?

2004 Expedition

04 Ford Expedition trouble accelerating.Struggle to get to 30 mph Engine light with code p0174 system too lean bank 2. P0172 system too rich bank 1. What to fix?

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