rough running v10

Asked by Jul 13, 2011 at 11:05 PM about the 1999 Ford F-250 Super Duty Lariat 4WD Crew Cab SB

Question type: Maintenance & Repair

my v10 has a miss that I can't get rid of. Ive replaced the spark plugs, coils on #3&9 CYLINDERS, fuel pump & injector on the #9 cylinder still has a lack of power and runs ruogh any suggestions?

3 Answers

it could still have a bad coil or coil wire,rember it has 10 coils and coil wire on it,could also be a cloged cat converter.also run a can of sea fome,well 1/2 can in a tank of gas,other 1/2 in crank case,will do one hell of a job cleaning the injectors and inside of motor.

2 out of 2 people think this is helpful.
10

Same thing here. My OBDII says I have a bad MAF Sensor. You might check that.

1 out of 1 people think this is helpful.
10

it will be a coil just got mine fixed took me 3 weeks to figure it out found this the primary side of coil should read .3 to 1.0 the secondary should read 3.5 k to 9.5 k OMHS primary is where the plug is the secondary is when the pug is up right the left pin and the spring should read you can find this on well test sheet part #C1417

1 out of 1 people think this is helpful.

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