Lb7 tapping under load

Gello

Member
Apr 15, 2013
129
0
16
Hello everyone
I have a tapping sound around 2000rpms. It's a LB7 in a 2004 2500hd with 31k.
Sounds like someone dropped a small bolt in one of the cylinders, more noticeable when pulling a grade on the highway. I was able to pull a 15k 5th wheel without a problem for 5 hours. Oil and filter changed every 1000 miles or so. I will be pulling 5th wheel this summer from jersey to South Carolina. Needless to say I'm a little nervous after reading some posts. I'd appreciate any advice!!!
Thanks everyone!!!
 

Bustedknuckles

Honey Badger
Sep 25, 2010
1,308
2
38
33
Hagerstown MD
Mine does the same thing but mine isn't near as loud as yours apparently is. Ive spent hours and hours chasing it and finally gave up even though it drives me nuts. :/ I just drive it hard and hope it fixes itself. LOL
 

Gello

Member
Apr 15, 2013
129
0
16
Thanks, it's really not all that loud, just drives me crazy!!!. Hopefully it doesn't blow up on vacation. That would be my luck. Thanks again!!
 

Bonestock

Active member
Aug 9, 2010
1,358
1
38
Worland Wy
Have someone put an EFI live tow tune on that thing & it will help. My stock rattles much more than any of my dsp5 tunes.
 

Gello

Member
Apr 15, 2013
129
0
16
EFI live tow tune? Sorry when it comes to diesels I'm lost!! I have the Edge juice in it, I'm ausuming that's not similar to what you're talking about.
Thanks for the reply!!
 

Jackblack99

New member
Oct 18, 2012
270
0
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Nowhere
To simplify things for you since your not into this stuff like we are, EFILive is a tuning software. It would replace your edge. You could use the edge for gauges but would use the EFILive for your programming for towing and mileage.