please help v10
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please help v10
well here i go this might take a min but bear with me, i have a 99 250 super duty v 10 got the truck cheap but has some issues, this is what i fixed, all exuust manifold bolts are new now, that was not cheap, i had an insuficiant flow code for my egr system pulled vac. on egr seems to work fine, repaced both the dpfe sensor and the vac. control modual, codes went away but the problem did not. but now i have 4 codes, numbers 154, 153 and i think 163,164, bascilly lean then rich bank 1, truck will run great then all of a sudden fall on its face like the gremlin under the hood is retarding the timing, no power, sometimes so bad i have to pull off the road then like magic as the pedal is on the floor the gremlin advances the timing and away i go. very odd and i can not figure it out. also some times at idle it will just start camming like a damn drag car the whole truck bounces looks and sounds cool, but really is not. PLEASE HELP PULLING MY HAIR OUT WITH THIS ONE and by the way 200,000 plus on it
Post Fiend
Joined: Jun 2003
Posts: 5,643
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From: NE Texas
The EGR will make it "lope" when idling.
Look at that 90 degree elbow that's attached to the front of your throttle body and hooks to the PCV on the driver's side valve cover. Those things are junk.
Next I would check the fuel pressure.
Is your battery hot? Not just enough to start the engine, but good and hot?
Look at that 90 degree elbow that's attached to the front of your throttle body and hooks to the PCV on the driver's side valve cover. Those things are junk.
Next I would check the fuel pressure.
Is your battery hot? Not just enough to start the engine, but good and hot?
Elder User
Joined: Sep 2007
Posts: 803
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From: S CAL
I was thinking maybe you could pull the IAC and clean it and make sure it is ok or check the wiring make sure nothing is rubbing somewhere and just check for vacume leaks that could be happening when the engine is warm and your driving along and things under the hood are moving around. Sounds like a tough one.
Post Fiend
Joined: Jun 2003
Posts: 5,643
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From: NE Texas
Originally Posted by 99v10guy
battery is brand new and good i pulled vacume on the egr and it worked at that time the egr tube is new too i did it when i did the exaust manifold bolts oh yes that sucked
Did you check that elbow?
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3000 fps there are 4 codes 153,154 and i think it was 163,164 i will check again and re post them thanks again wow what a pain, big orn i will also check that elbow like you said and i will get back at you guys thanks alot for your help and time we will get this figured out.
