Help "Loud Ping"
#1
Registered User
Thread Starter
Join Date: Jul 2008
Location: Phoenix
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
Help "Loud Ping"
I am having some concerns with my 4Runner already that maybe you can help me out with or point me in the right direction to someone that may know what to do. There is a very loud "PING" in the rear end when turning sharp. It is like the rear locker is binding up and something pings out of place. It still drives normal when it does this. However it just doesn't seem normal at all. It feels like either an axle spline breaking every time or a ring and pinion snapping or something horrible and expensive every time. This is happening more often now and seems to happen 2-3 times a day when cornering sharp turns now. What do you think is going on here? Thanks guys
#3
Registered User
Thread Starter
Join Date: Jul 2008
Location: Phoenix
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
#4
Contributing Member
Just use the search feature and see if it's similar to your situation...
This is all assuming you have IFS up front; the solids don't do it...
Basically the steering-stops on an IFS rig make a lot of racket when you turn to full lock and move the vehicle at all.
When I first got my 91, I noticed it about a week after I got it. When I heard it, I could have swore it was coming from the rear too; vibration travels very well through a frame.
This is all assuming you have IFS up front; the solids don't do it...
Basically the steering-stops on an IFS rig make a lot of racket when you turn to full lock and move the vehicle at all.
When I first got my 91, I noticed it about a week after I got it. When I heard it, I could have swore it was coming from the rear too; vibration travels very well through a frame.
Last edited by iamsuperbleeder; 08-14-2008 at 08:19 PM.
#5
Registered User
Join Date: Jan 2007
Location: milwaukee, WI baby muddin in the streets!!
Posts: 2,801
Likes: 0
Received 1 Like
on
1 Post
take your rig and trail it get one rear wheel off the ground stop and floor it BUT MAKE SURE ITS SAFE IF THE TRUCK SHIFTS OR SLIDES!!! and see if the one rear wheel will move you and if it "pings" then then it might be a rear end on make sure your still in 2wd when you do it
#6
Contributing Member
take your rig and trail it get one rear wheel off the ground stop and floor it BUT MAKE SURE ITS SAFE IF THE TRUCK SHIFTS OR SLIDES!!! and see if the one rear wheel will move you and if it "pings" then then it might be a rear end on make sure your still in 2wd when you do it
#7
Registered User
Thread Starter
Join Date: Jul 2008
Location: Phoenix
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
take your rig and trail it get one rear wheel off the ground stop and floor it BUT MAKE SURE ITS SAFE IF THE TRUCK SHIFTS OR SLIDES!!! and see if the one rear wheel will move you and if it "pings" then then it might be a rear end on make sure your still in 2wd when you do it
Trending Topics
#9
Contributing Member
Join Date: Feb 2007
Location: maple ridge, British Columbia, Canada
Posts: 9,055
Likes: 0
Received 9 Likes
on
5 Posts
If you have a locker or limited slip, then both wheels will spin in the same direction when jacked up. If you have the stock open diff, one wheel will spin one way and the other in the other direction.
#10
Contributing Member
but then again the truck wouldn't drive N E where either...
#11
Registered User
Thread Starter
Join Date: Jul 2008
Location: Phoenix
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
I understand the purpose of the diff, I do not understand what are potential causes of this loud binging one time PING I hear once in a while when turning sharp. I was told that the rear end has a Detroit locker in the rear and LSD in the front, which have all proven them selves on many trails already. How ever the rear end started this ping noise that is of great concern to me. If it is the locker do I need to pull out both axles to get it out and inspect it?
#13
probably that damn truck leprechaun hitting your rear end with a hammer. Its a cousin to the one that craps in your mouth when you sleep and leaves a bad taste in your mouth.
#14
Contributing Member
I'm not real up on Detroit lockers, but as I understand they have an auto release feature that will unlock going around turns when you let off the gas. Sounds like to me you just have normal Detroit locker behavior. The trick I guess is to learn to corner with your foot off the gas.
Last edited by mt_goat; 08-15-2008 at 08:38 AM.
#15
Registered User
Thread Starter
Join Date: Jul 2008
Location: Phoenix
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
I'm not real up on Detroit lockers, but as I understand they have an auto release feature that will unlock going around turns when you let off the gas. Sounds like to me you just have normal Detroit locker behavior. The trick I guess is to learn to corner with your foot off the gas.
#16
Contributing Member
I'd read up on Detroit lockers if I were you. I don't know how it works in reverse. Also, like someone already said, check your gear oil in the rear diff. Hopefully there won't be any loose gear teeth drain out.
Last edited by mt_goat; 08-15-2008 at 10:36 AM.
#17
Registered User
Thread Starter
Join Date: Jul 2008
Location: Phoenix
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
I think we will change the fluid to see what we find. I will also read up on those lockers too. I drove about 500 miles in the last 3 days and the problem has not gotten any worst so hmmm.....
#18
Registered User
Join Date: Jan 2010
Location: Vail, Arizona
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Same problem
I have the same problem I think... except it happens almost every time I engage the clutch... it's gotten progressively worse... so idk... It still drives fine like yours but it's so annoying... I think I will try draining the rear crankcase as well... But for now --->
Last edited by Vallone1990; 03-01-2010 at 11:48 AM.
#19
Registered User
I have the same problem I think... except it happens almost every time I engage the clutch... it's gotten progressively worse... so idk... It still drives fine like yours but it's so annoying... I think I will try draining the rear crankcase as well... But for now --->
anyone have any thoughts?
#20
Registered User
iTrader: (1)
U-joint.
I was amazed at the number of different sounds a busted u-joint makes. From long squeals, intense vibrations, slight vibrations, clunks, pings, ka-thunks, and finally a big kaboom when it finally goes out.
Thinking back, I had a bad u-joint for almost a year before I replaced it. Hahaha. Factory U-joints, truck has 360k on it.
I was amazed at the number of different sounds a busted u-joint makes. From long squeals, intense vibrations, slight vibrations, clunks, pings, ka-thunks, and finally a big kaboom when it finally goes out.
Thinking back, I had a bad u-joint for almost a year before I replaced it. Hahaha. Factory U-joints, truck has 360k on it.