weird scraping noise in reverse
#1
Registered User
Thread Starter
weird scraping noise in reverse
Ever since I swapped my auto for a manual transmission on my 85 4Runner, there has been this really strange scraping noise that happens when it's in reverse with the clutch depressed. My driveway is steep, so I usually just depress the clutch and let the truck roll backwards till it's in the street. If I put it in reverse and depress the clutch while letting it roll, I get what sounds like metal on metal scraping in cyclical intervals, almost like a warped rotor but much more noisy. I just recently swapped rear axles and thirds, and the same thing is happening with the new set up, so I know it's not the diff. I also had the front end apart recently to swap third members, so I know everything up there is fine. Rotors are only a few hundred miles old. The only thing I can think of is reverse in the tranny is giving out, but I'm just not sure if it would sound like this.
Any ideas?
Any ideas?
#2
Registered User
Join Date: May 2013
Location: San Antonio, Tx.
Posts: 400
Likes: 0
Received 0 Likes
on
0 Posts
sounds like you're in my boat. reverse sync
does it sound like a skitter type grind? as if a heavy metal piece is grinding on thin metal, but really fast and not a constant pitch?
does it sound like a skitter type grind? as if a heavy metal piece is grinding on thin metal, but really fast and not a constant pitch?
#3
Registered User
Thread Starter
Not sure. It's different inside than out. I was listening to it when my wife backed it out, and it sounded worse from the outside. Inside it sounds kind of like a big piece of metal dragging across a thinner one. Actually, it sounds like when you lift the front end and spin a wheel. You know how there will be some scraping from the brake pads? Imagine that once every rotation of the driveshaft.
#4
Registered User
Thread Starter
BTW: I know there are some other threads about noise and rebuilding the trans. I just want to narrow down the issue and decide if it would be better to try and fix it myself or order the expensive Marlin HD version. From what I was told by the guy I bought it from, this one had about 190K on it, and I doubt it was ever touched.
Thread
Thread Starter
Forum
Replies
Last Post
May-39
95.5-2004 Tacomas & 96-2002 4Runners
1
09-06-2015 01:05 PM