2001 cummins rod knock?? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 11-16-2010, 03:11 AM Thread Starter
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2001 cummins rod knock??

ok guys i got a serious problem here a few weeks ago when i was driving around on the free way doing 70 very light throtle my egts would sky rocket to like 1400-1500 and then go back to normal it did this a few times then one day drining 55 cruising the motor started making a super loud knock like a rod the truck is running on 5 cylinders and knocking like mad. i have perfect oil presure and oil looks good do you think one of the injectors broke??? if so should i pull the head off just to make sure nothing is messed up?

2001 CC LB 2500 48RE with TQlockup CAI, 5"TBE,Quadzilla Adrenaline with V2,and BD pulse XXX 100hp stix, phatshaft 66mm .leveled on 305/70/16's
under the knife for rebuild
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post #2 of 5 (permalink) Old 11-16-2010, 06:00 PM
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Did you just install that PS66 turbo by chance? If no plans to add more fuel, that is more turbo than you really need for just a Edge Juice and 100hp sticks. A 64/14 would've been plenty.

Otherwise, I'd say you have a dirty air filter, boost leak or severely retarded timing. Any excess black or white smoke?

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post #3 of 5 (permalink) Old 11-16-2010, 08:43 PM Thread Starter
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no the smoke is normal a little white smoke id say and some blue but no excess in black smoke. the turbo works great the egts never hit over 1250 then all of a sudden this happened im wondering if the KDP fell out

2001 CC LB 2500 48RE with TQlockup CAI, 5"TBE,Quadzilla Adrenaline with V2,and BD pulse XXX 100hp stix, phatshaft 66mm .leveled on 305/70/16's
under the knife for rebuild

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post #4 of 5 (permalink) Old 11-20-2010, 09:23 PM
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KDP doesn't sound that likely to be causing this problem. And, IIRC, th '01 trucks should have the updated case with the stepped hole. Shouldn't be a problem anyhow.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


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post #5 of 5 (permalink) Old 11-20-2010, 11:59 PM Thread Starter
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yeah i figured it wouldnt be the KDP but my oil presure is fine i am wondering if one or more of my injectors has fialed causing an injector knock?? casue the truck does have a dead cylinder at least one that i know of. if i take the injectors out and crank her over and it does no knock at all with that tell me anything?ive checked the oil and i dont se any metal maybe a flake or two bu maybe normal maybe not.

2001 CC LB 2500 48RE with TQlockup CAI, 5"TBE,Quadzilla Adrenaline with V2,and BD pulse XXX 100hp stix, phatshaft 66mm .leveled on 305/70/16's
under the knife for rebuild
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