Rotational tap/pop sound from front end diagnosis help

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Badgertits

FRF Addict
Joined
Jan 24, 2019
Posts
2,914
Reaction score
2,528
Location
Ma
Just noticed the other day while driving in 4a @ very slow speed, like just rolling forward at idle or slightly above a tapping/light knock type sound - initially I thought it was just the tire going over the reflective strips on shoulder of road or potentially even something lodged in the tire- very much felt like that & could feel it in steering wheel & hear it as well, SEEMS to only do it in 4a I switched back & forth last night & it seemed to only replicate in 4a but I may have heard it in 2 also

Also felt it in 4a when allowing the truck to just coast from like 65-70mph down to 45ish in between that Range made it as well but more faintly less noticeable - in every other way truck is functioning normal & there doesn’t appear to be any loss in function of 4a the front wheels were definitely engaging when they needed to & as indicated on the DIC power distribution, I am going to try & see if it does it in 4Hi or Lo today

There is no bad mechanical sound or feel when I’m driving it aggressively in 4A or even “normally” only noticed this at very light or no throttle & only at certain speeds
I am guessing a wheel bearing, IWE, axle/CV, or the transfer case all would come into question?
 

Gen2Boost

Full Access Member
Joined
Jul 14, 2022
Posts
199
Reaction score
390
Location
Miami
Hey bro did you figure this out? I have a Gen 2. Had entire IWE replaced couple years back. No issue since. I have a 2.5” eibach pro lift kit on front end that’s been there for almost 2 years. For the last 3 weeks when I’m at low speed accelerating slowly from a stop, I’m getting what feels like a rotational knock from what feels like the front right wheel/suspension which I can feel through the gas pedal. After about a week of that I noticed that same right front has started to squeak when I go over a speed bump at low speed. But if I gun it from a dead stop I don’t feel it. Or if I accelerate on the highway I get no feedback in the gas pedal like I do at low speed acceleration. Haven’t had time to take her in but everything I’ve read on the forum points to either torn CV boot, axle, or bad bearings. She’s a 2019 and just hit 90k miles god bless her soul lol I also believe I’m getting some fluid spray off on the right inside tire but I can’t find a leak to save my life.
 

Attachments

  • IMG_2838.jpeg
    IMG_2838.jpeg
    337.4 KB · Views: 13
  • IMG_2839.jpeg
    IMG_2839.jpeg
    252.2 KB · Views: 14
  • IMG_2840.jpeg
    IMG_2840.jpeg
    201.8 KB · Views: 14
  • IMG_2841.jpeg
    IMG_2841.jpeg
    153 KB · Views: 13
  • IMG_2839.jpeg
    IMG_2839.jpeg
    252.2 KB · Views: 14
OP
OP
B

Badgertits

FRF Addict
Joined
Jan 24, 2019
Posts
2,914
Reaction score
2,528
Location
Ma
I dunno man I think your situation may be different than mine given the lift, 2.5” for 10s of thousands of miles is no joke, you can see the angle on you CV shafts is definitely altered. I haven’t determined exactly what it is yet but I THINK it may turn out to be loose mounting hardware for the front diff based on another members experience (& his dealer went through axles.IWE/bearings & even a Tcase. Before figuring it out)

I bet you probably have an issue w/ axle seal & maybe weeping fluid as a result of the lift
 


Write your reply...
Top