0 like 0 dislike
620 views
by

p0174,p0300,p0316,p0302,p0305,p0306 ......

all codes started poping up,
replaces spark plugs and wires, cleaned MAF sensor.
rough idle, hesitation on acceleration, rougher at 1400 to 1600 rpm. smooths out at @2000 rpm or higher. no smoke, no noticeable backfires. coil replaced less then one year ago. new filters (oil & air) FUEL FILTER replaced last year.

Vehicle: Ford freestar 2004 SES 3.9L

1 Answer

0 like 0 dislike
by (13.6k points)
HI there,

With all the misfire codes and the lean fuel mixture code, I would check the fuel pressure and also check for intake manifold gasket leaks.

Related questions

0 like 0 dislike
0 answers 660 views
0 like 0 dislike
1 answer 890 views
0 like 0 dislike
1 answer 494 views

33.7k questions

32.5k answers

1.3k comments

23.0k users

Need A Repair Shop?
Find local automotive repair shops in your area.
...