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post #1 of 7 Old 12-03-2011, 05:07 PM Thread Starter
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need some guidance

i have a 99 f250, with 160,xxx that i just bought
here is the problem,
at idle it sounds like a kind of knock, deff. a noticeable noise, than when u reach above 800 rpm it diminshes completely..
i believe this to be an injector, but i would assume it would smoke a bit if it was,

all help would be greatly appreciated thanks, james

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post #2 of 7 Old 12-03-2011, 07:52 PM
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It could be an injector, but it could also be in the valve train. Had a friend that chased a knock. Nothing could be found, so the tore the whole valve train apart thinking a bent pushrod. Nothing was found, so they put it all back together and the knock went away.

Ken
2002 F-350 CCLB 4X4, HD4R100 , 4" Diamond Eye exhaust, Powerslot rotors, ATS Ported Compressor Housing, DP Tuner-F6, Autoenginuity, EEC-V Breakout Box, KCM S.S. HPX Line, S&B Filters intake, Quad Autometer gauge pod, Inovations canopy, Banks Big Head wastegate actuator, 6.0L Trans Cooler, Spin-on Transmission filter with custom bracket, Zoo-dad, Dieselsite Coolant Filter, Cobra 29LTD/NW CB, DVD and always looking to do more...
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post #3 of 7 Old 12-03-2011, 07:59 PM
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Could just be the #8 AD 'long lead' injector that can routinely knock with no problems.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #4 of 7 Old 12-04-2011, 07:19 PM
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Quote:
Originally Posted by jesilvas View Post
Could just be the #8 AD 'long lead' injector that can routinely knock with no problems.
#8 LL is an AE injector, the rest are AD's. His 99 most likely does not have a LL injector in it though.

Ken
2002 F-350 CCLB 4X4, HD4R100 , 4" Diamond Eye exhaust, Powerslot rotors, ATS Ported Compressor Housing, DP Tuner-F6, Autoenginuity, EEC-V Breakout Box, KCM S.S. HPX Line, S&B Filters intake, Quad Autometer gauge pod, Inovations canopy, Banks Big Head wastegate actuator, 6.0L Trans Cooler, Spin-on Transmission filter with custom bracket, Zoo-dad, Dieselsite Coolant Filter, Cobra 29LTD/NW CB, DVD and always looking to do more...
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post #5 of 7 Old 12-04-2011, 07:32 PM
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Yea I knew it was different, but couldn't remember what code the rest were.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #6 of 7 Old 12-08-2011, 05:15 PM
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mine has the same problem its an 01 with 186,000 a noticable knock at idle but goes away when accelerated. I was told it was injector. it drives me crazy but it has done it for 30,000 miles now and no smoke yet.
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post #7 of 7 Old 12-08-2011, 10:14 PM
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stick your ear down to your trans bell housing your problem sounds like mine and I think my torquew converter is going out


2002 F-250 IH 444E
AFE Stage II
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1995 F-250 IH 444E
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