RUNS BAD MORE OFTEN UNDER A LOAD

  • Tiny
  • scottknavel
  • 1997 Ford F-250
  • 160,000 miles

Runs bad more often under a load

Monday, February 4th, 2013 AT 9:36 PM

11 Answers

  • Tiny
  • scottknavel
  • Member

I have replaced the coil controle module cap rotor plugs and wires feul pump and filter

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Monday, February 4th, 2013 AT 9:40 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

More info please? Is the check engine light on? Recent services?

Roy

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Monday, February 4th, 2013 AT 11:13 PM
  • Tiny
  • scottknavel
  • Member

No check engine light on it seems to be at its worse under a load

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Monday, February 4th, 2013 AT 11:25 PM
  • Tiny
  • scottknavel
  • Member

It idles ok you can hear a little miss though not all the time it has gotten worse

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Monday, February 4th, 2013 AT 11:28 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Ok, recent service? How old are the plugs/coils?

Roy

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Monday, February 4th, 2013 AT 11:30 PM
  • Tiny
  • scottknavel
  • Member

All new I have replaced coil, controle midule, cap, rotor, plugs, andwires, feul pump front tank and filter and all the relays in the fuse box under the hood

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Monday, February 4th, 2013 AT 11:39 PM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Ok, I assume it is a V6.

Control module? New and did you get it flashed?

Injectors could be fouled. Have them cleaned professionally.

Additive rarely work and is not effective.

Did you do a compression test?

Roy

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Monday, February 4th, 2013 AT 11:49 PM
  • Tiny
  • scottknavel
  • Member

Its5.8engine I did not flash the module what does that mean? Ok on the ijectors is there a way to test them?

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Tuesday, February 5th, 2013 AT 12:07 AM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Ok, sorry, I thought you meant the pcm. Thought it was a v6.

Flashing is the programming in the computer. Just like your home computer, there are updates to yours as well.

Roy

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Tuesday, February 5th, 2013 AT 12:11 AM
  • Tiny
  • scottknavel
  • Member

With it idleing with hood up you can hear a miss and at the same time it misses I can hear a noise soubds like somthing in the top end

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Tuesday, February 5th, 2013 AT 12:17 AM

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