no power low idle
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no power low idle
1997 F350 Crew-Cab. I have no power from idle to 1500 rpm. After that it pulls just fin. Also after it warms up it gets a bad lope when idling. Other information on the truck is: 3in downpipe to 4in, TS performance 6 position and the air intake isnt stoke but that was there when I bought the truck so I dont know what it is. Thank you.
Postmaster
Joined: Jan 2010
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From: Elk City, OK
have you tried running "diesel kleen" though the fuel system? when was the last time you replaced the fuel filter? oil pressure good? these psd's fire off a hpop (high pressure oil pump) if the low pressure pump diesnt perform well then it wont supply your hpop. might do you some good to run a little "lucas" in your oil. before your next change, also run 1/2 gallon of diesel in your oil. go to the station and put it in, by the time you get home the engine will be good, wait at least 12 hours before draining the oil (do not fire the truck up again after the initial shutdown or you will risk sucking all that junk into the oil pump screen) after you drain the oil, leave the drain plug and oil filler cap off for 12-24 hours to clear out. then, put the plug back in, swap filters, put a bottle of lucas in, fill the rest with standard 15w40 and try her out.
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Joined: Jan 2010
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From: Elk City, OK
pretty common practice in big trucks. Some guys choose atf, some like "motor flush" but the "motor flush" can't be used on turbo engines
Hotshot
Joined: Jul 2003
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From: Newport, WA
Because the HEUI system on the PSD hates oil additives. To each his own, but my rigs get nothing but good 'ol oil in the crank case.
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I have ran diesel kleen in it and no results. I don't know if I feel comfotable runing diesel through my crank case. Does anyone have any other ideas? I did have a fuel leak but I fixed it a month ago.
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Yeah I replaced fuel filter when I fixed fuel leak a month ago. How do I check my fuel pressure? The only thing I know about the intake is its not stock, it was on it when I bought the truck. Oil pressure is good aswell.
Hotshot
Joined: Jul 2003
Posts: 12,177
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From: Newport, WA
There is a schrader valve (looks like a tire valve stem) on the side of the fuel pressure regulator on the driver's side of the truck. Put a tire pressure gauge on it with the engine idling (not a gauge you like, the diesel will trash the seals).
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