Loud popping on take off, screeching when loaded up. - ZR-1 Net Registry Forums

BigIke · 12-05-2018

Hey y'all, got a loud pop that you can feel through the car when taking off from a stop, also turning under load. Also has a sound like sketching, or rubbing when I load the drive line with anything more than a little throttle. Sounds a lot like a brake pad tattle tale touching the rotor, except it gets louder with more throttle...

With the car in gear and the e-brake off, there is a popping noise when I rock the car back and forth. Got up under it and it sounds like right side u-joit or maybe the differential.

The sketching under load points to a diff going out, but I don't know if a half shaft u-joint will do the same thing.

Anyone had this issue? Help troubleshoot?

The Juan is going to be down for awhile. Going to install new u-joints in the right rear, and a new hub, have had the parts for awhile. Also had another intake backfire, when I pull the upper plenum this time I'm going to replace the lower gaskets, got a vacuum leak there sucking in oil and making me smoke.

Jay

Sent from my SM-G960U using ZR-1 Net Registry mobile app

Paul Workman · 12-06-2018

BigIke · 12-06-2018

:happier1:

Sent from my SM-G960U using ZR-1 Net Registry mobile app

Jagdpanzer · 12-06-2018

Sounds like either your bearing hubs or half shaft u-joints, or both, are well on their way out. While at it also be sure to check out the differential.

Sent from my iPhone using ZR-1 Net Registry

12-05-2018	#1
BigIke Join Date: Aug 2014 Location: Montgomery TX Posts: 263	Loud popping on take off, screeching when loaded up. Hey y'all, got a loud pop that you can feel through the car when taking off from a stop, also turning under load. Also has a sound like sketching, or rubbing when I load the drive line with anything more than a little throttle. Sounds a lot like a brake pad tattle tale touching the rotor, except it gets louder with more throttle... With the car in gear and the e-brake off, there is a popping noise when I rock the car back and forth. Got up under it and it sounds like right side u-joit or maybe the differential. The sketching under load points to a diff going out, but I don't know if a half shaft u-joint will do the same thing. Anyone had this issue? Help troubleshoot? The Juan is going to be down for awhile. Going to install new u-joints in the right rear, and a new hub, have had the parts for awhile. Also had another intake backfire, when I pull the upper plenum this time I'm going to replace the lower gaskets, got a vacuum leak there sucking in oil and making me smoke. Jay Sent from my SM-G960U using ZR-1 Net Registry mobile app __________________ 1991 White ZRJuan #1616 Mileage: 56K Sept-14 -- 113k May-18!!! God Damn I Love This Car!

12-06-2018	#2
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: Loud popping on take off, screeching when loaded up. __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

12-06-2018	#3
BigIke Join Date: Aug 2014 Location: Montgomery TX Posts: 263	Re: Loud popping on take off, screeching when loaded up. :happier1: Sent from my SM-G960U using ZR-1 Net Registry mobile app __________________ 1991 White ZRJuan #1616 Mileage: 56K Sept-14 -- 113k May-18!!! God Damn I Love This Car!

12-06-2018	#4
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,661	Re: Loud popping on take off, screeching when loaded up. Sounds like either your bearing hubs or half shaft u-joints, or both, are well on their way out. While at it also be sure to check out the differential. Sent from my iPhone using ZR-1 Net Registry __________________ Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake