need some help

90

Asked by Jul 21, 2011 at 10:01 PM about the Ford E-150

Question type: Maintenance & Repair

I have a 1999 E-150 with the Titian 5.4 L engine. it is really running rough. Push on gas and hardly no power then it takes off but terrible running. Also when it rains it gets even worst. Someone told me to replace plugs, coil pack and coil. never took one of these a part not going to but there is a really good mechanic down the road here and I was told he is really good with these. But what all would you replace. I would like to replace all the igintion parts so all this would stop. Also going to replace MAP sensor also Just can't stand for it to run this way when you used to press on gas it ran great now press on gas won't hardly have the power to climb a small hill

6 Answers

265

What i recommend is, change the serpentine belt, spark plugs along with wires of course, air filter, pcv valve. Run some injector cleaner really helps on older vehicles. Might not be an electrical problem at all, just needs tuned up.

90

spark plugs air filter, pcv valve. injector cleaner all done this engine does not use spark plug wires uses the coil packs

1 of 1 people found this helpful.

replace fuel filter,fuel pump could also be geting week,check fuel pressure at fuel rail.no need throwing parts on it that it may not need.

1 of 1 people found this helpful.
90

Disconnected battery yesterday to reset computer. Van ran great. then this morning the light came back on and started running rough again. Got codes for it today and it said P0171 AND P0401

1 of 1 people found this helpful.

Pull the plenum off the top of the engine and clean it out, also clean the EGR. If that doesnt fix your problem, you will probably have to replace the DPFE sensor.

3 of 3 people found this helpful.

here is a link to the DPFE sensor for your vehicle. http://www.autozone.com/autozone/parts/Duralast-EGR-Valve-Pressure-Sensor/1999-Ford-E150-1-2-ton-Van/_/N-jdk9rZ93y2i?counter=0&filterByKeyWord=dpfe&fromString=search&itemIdentifier=195712_299042_0_

2 of 2 people found this helpful.

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