Hey MUD,
I just got back from a nice camping trip in the mountains and noticed a few things so I thought I'd pick your brains. 1992 FJ80, 3FE and A440F.
1st: Gear Whine in 1st
My cruiser has had this since day 1 when I got it 2 years ago. Basically it sounds like a high pitch whine that gets higher as rpm's go up, then go away in any other gear. It is present in 4-LO and 4-High so that to me indicates its in the tranny or in the high range side. Does anyone else have this whine? And does this mean the tranny has an issue?
Normal and common.
2nd: Vibration at highway speeds when at partial throttle
This one is...hard to describe. Basically, if I give enough gas to maintain speed, but not enough to noticeably accelerate, I feel a fast, thumpy vibration, through the floor and pedal. If I completely release the throttle, it goes away. If I give it enough gas to accelerate, it goes away. Speeds that I noticed it were around 60-75 mph. I recently did some mods that may be in play here: OME 2.5" lift, 4.56 diff gears, and slapped on 295/75/16 KO2's. Any clue as to why I'm getting the vibration?
Driveshaft is worn. Further discussion below.
3rd was my mistake: Over rev damage to 3FE?
I mis-shifted going up a hill, went into N instead of 3rd. Speed was about 60mph. Revs instantly went way up. Noticed within a second and shifted back into D. Drove another 50 miles at highway speeds without any indication of damage. Am I safe?
No damage.
And of course, THANK YOU! This trip wouldn't have been possible without the knowledge and support found here!
I just got back from a nice camping trip in the mountains and noticed a few things so I thought I'd pick your brains. 1992 FJ80, 3FE and A440F.
My cruiser has had this since day 1 when I got it 2 years ago. Basically it sounds like a high pitch whine that gets higher as rpm's go up, then go away in any other gear. It is present in 4-LO and 4-High so that to me indicates its in the tranny or in the high range side. Does anyone else have this whine? And does this mean the tranny has an issue?
Normal and common.
2nd: Vibration at highway speeds when at partial throttle
This one is...hard to describe. Basically, if I give enough gas to maintain speed, but not enough to noticeably accelerate, I feel a fast, thumpy vibration, through the floor and pedal. If I completely release the throttle, it goes away. If I give it enough gas to accelerate, it goes away. Speeds that I noticed it were around 60-75 mph. I recently did some mods that may be in play here: OME 2.5" lift, 4.56 diff gears, and slapped on 295/75/16 KO2's. Any clue as to why I'm getting the vibration?
Driveshaft is worn. Further discussion below.
I mis-shifted going up a hill, went into N instead of 3rd. Speed was about 60mph. Revs instantly went way up. Noticed within a second and shifted back into D. Drove another 50 miles at highway speeds without any indication of damage. Am I safe?
No damage.
And of course, THANK YOU! This trip wouldn't have been possible without the knowledge and support found here!
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