Let me start off by saying I'm not a very good mechanic and I don't know the names of all the parts of the 4 wheel system . I have a 1997 lexus lk450 with the knob inside for front and rear locking diff .
The other day I noticed when I was giving it some gas when the light turned green that it started jerking like the rear end was slipping . I let off the gas and slowed down and it stopped .
It didn't do it again till I had a garage add grease to the drive shaft that goes from the rear diff that connects the rear wheels to a box in the middle of the truck . I'm not sure what that box looking thing is ,I think he called it a transfer case . Once they added the greasee to all the grease plugs the guy said it took a lot of grease .
When they lowered truck and pulled it out it was jerking really bad , It wasn't doing that when they pulled it in so he know something happened . He put it back on the lift and he pointed to the box where the drive shaft ended the transfer box I think that is what its called .
He put it in gear and it was making a noise and vibrating . He said to fix it he would have to put in a new one . He let the truck down again and as I was trying to drive back home I had to pull off the road as soon as I got on it because it was jerking so bad I started and stopped going very slow off the road and went in a circle in a parking lot till it finally stop jerking . This was all in distance of a mile . Once I was going down the road it was fine and I couldn't get it to jerk again .
I thought they may have put to much grease in it and something was having a hard time turning inside . All was good till the other day and it jerked again when I was gving it some gas after the light had turned green . that was last week and it hasn't done it again .but I have been taking off very slowly to try to keep it from doing it again .
The garage at the time they added the grease checked the box to make sure it had fluid in it and they showed me it was full . They also checked the rear diff fluid .
Does anyone know whats going on ? Is there a way for me to know if the jerking is in the drive shaft , the rear end or the box ?
I can't remember the last time I put it in 4wheel low and I don't think I have ever used the front and rear diff locking knob . Should I get on a gravel road and put it in low 4 wheel drive and run it for a while and should I try using the knob on the dash ? Are there any good video 's about the jerking or slipping action ?
I really don't know how to explain whats going on other than its not a smooth take off . It never does it until I'm stopped and I start moving again like at a red light or stop sign . It never does it while I'm driving and it only last a few seconds because I let off the gas right away .
The only time it did it for a mile was when I left the garage and they added grease to the drive shaft . I don't think the people at the garage ever worked on a lx450 before .
Any help will be greatly appreciated . It has 190,000 miles on it . Never been off road . It was my dads and I got it when he passed . I got it from him with about 150,000 on it . I let my daughter put 20,000 on it and I have put on the rest . I really like it and I want to try to keep it going if I can . Its my daily driver . Its just a regular stock lx450 ,its not the one in the photo I have for the forum . I just like that photo .
The other day I noticed when I was giving it some gas when the light turned green that it started jerking like the rear end was slipping . I let off the gas and slowed down and it stopped .
It didn't do it again till I had a garage add grease to the drive shaft that goes from the rear diff that connects the rear wheels to a box in the middle of the truck . I'm not sure what that box looking thing is ,I think he called it a transfer case . Once they added the greasee to all the grease plugs the guy said it took a lot of grease .
When they lowered truck and pulled it out it was jerking really bad , It wasn't doing that when they pulled it in so he know something happened . He put it back on the lift and he pointed to the box where the drive shaft ended the transfer box I think that is what its called .
He put it in gear and it was making a noise and vibrating . He said to fix it he would have to put in a new one . He let the truck down again and as I was trying to drive back home I had to pull off the road as soon as I got on it because it was jerking so bad I started and stopped going very slow off the road and went in a circle in a parking lot till it finally stop jerking . This was all in distance of a mile . Once I was going down the road it was fine and I couldn't get it to jerk again .
I thought they may have put to much grease in it and something was having a hard time turning inside . All was good till the other day and it jerked again when I was gving it some gas after the light had turned green . that was last week and it hasn't done it again .but I have been taking off very slowly to try to keep it from doing it again .
The garage at the time they added the grease checked the box to make sure it had fluid in it and they showed me it was full . They also checked the rear diff fluid .
Does anyone know whats going on ? Is there a way for me to know if the jerking is in the drive shaft , the rear end or the box ?
I can't remember the last time I put it in 4wheel low and I don't think I have ever used the front and rear diff locking knob . Should I get on a gravel road and put it in low 4 wheel drive and run it for a while and should I try using the knob on the dash ? Are there any good video 's about the jerking or slipping action ?
I really don't know how to explain whats going on other than its not a smooth take off . It never does it until I'm stopped and I start moving again like at a red light or stop sign . It never does it while I'm driving and it only last a few seconds because I let off the gas right away .
The only time it did it for a mile was when I left the garage and they added grease to the drive shaft . I don't think the people at the garage ever worked on a lx450 before .
Any help will be greatly appreciated . It has 190,000 miles on it . Never been off road . It was my dads and I got it when he passed . I got it from him with about 150,000 on it . I let my daughter put 20,000 on it and I have put on the rest . I really like it and I want to try to keep it going if I can . Its my daily driver . Its just a regular stock lx450 ,its not the one in the photo I have for the forum . I just like that photo .
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