Rear end vibration accelerating from a stop
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
Rear end vibration accelerating from a stop
I have a 2000 Mazda B4000 2wd extended cab - 132,000 km.
After coming off the highway after about 25 km when I accelerate from a stop the rear end vibrates or shudders, mostly in first gear, some in second as I'm accelerating. More noticable when I'm turning, either left or right. Shakes the whole truck at times and can feel it in the steering. We have changed the front calipers (were starting to sieze), checked the bearings front and rear, checked the rear brakes, changed the u-joints and had the aluminum driveshaft balanced, changed the differential fluid and added the friction modifier, drove it for a little over 200 km to work the friction modifier into the cluch pack. I still have the same problem. I was wondering if anyone has had the same trouble or maybe a solution to my dilema.
I read that Ford has a revised clutch pack replacement kit with improved friction material for the Traction-Lok differential. Has anyone tried this solution?
Any help you can afford would be greatly appreciated.
Regards; Len
After coming off the highway after about 25 km when I accelerate from a stop the rear end vibrates or shudders, mostly in first gear, some in second as I'm accelerating. More noticable when I'm turning, either left or right. Shakes the whole truck at times and can feel it in the steering. We have changed the front calipers (were starting to sieze), checked the bearings front and rear, checked the rear brakes, changed the u-joints and had the aluminum driveshaft balanced, changed the differential fluid and added the friction modifier, drove it for a little over 200 km to work the friction modifier into the cluch pack. I still have the same problem. I was wondering if anyone has had the same trouble or maybe a solution to my dilema.
I read that Ford has a revised clutch pack replacement kit with improved friction material for the Traction-Lok differential. Has anyone tried this solution?
Any help you can afford would be greatly appreciated.
Regards; Len
Last edited by Lentor; Feb 21, 2005 at 06:20 PM. Reason: OOPS, wasn't finished
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
Good mornin,
It has a 5 speed manual tranny.
Started to notice the problem after the rear tires were changed in the latter part of Dec. 04. ( Replaced them with Michelin LTX m&s ) the old tires had almost no tread left wouldn't even grip on wet pavement let alone in the snow.
It has a 5 speed manual tranny.
Started to notice the problem after the rear tires were changed in the latter part of Dec. 04. ( Replaced them with Michelin LTX m&s ) the old tires had almost no tread left wouldn't even grip on wet pavement let alone in the snow.
Post Fiend
Joined: Feb 2003
Posts: 6,940
Likes: 2
From: Eastern WA
Is there any chance you have a buddy with a Ranger and you can maybe get him to let you try two of his tires/wheels on the back of your truck? Did this all begin immediately after installing new tires or was it also doing it before?
Senior User
Joined: Jan 2004
Posts: 427
Likes: 0
From: allen park
Same problem... different truck
I have the same problem on a '93 2wd Ranger 5-speed manual. It started also after replacing the tires. I thought it sounded like the exhaust and that was a no go. Crawled underneath it and found nothing on it. Let me know if you find anything. 
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
I think I will try rotating the tires first and see what happens. I have a appointment on thursday to have another look at the rear brakes, a friend at work thinks the secondary shoes may be hanging up. I'm gonna keep my fingers crossed for an easy fix.
Later-
Len
Later-
Len
Trending Topics
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
Update
No luck with the tires.
Changed the back brakes including drums, shoes and wheel cylinders. Problem still persists.
Any Ideas? Something to do with the clutch maybe?
I have pretty much ruled out the traction lok differential because it does it going straight not just on turns.
Later
Len
Changed the back brakes including drums, shoes and wheel cylinders. Problem still persists.
Any Ideas? Something to do with the clutch maybe?
I have pretty much ruled out the traction lok differential because it does it going straight not just on turns.
Later
Len
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Tuned
Joined: Dec 2003
Posts: 297
Likes: 6
If you have the limited slip differential and it sounds like you do with the Traction Lok noted, it may be time for a fluid change and be absolutely sure that friction modifier is added. Lots of auto shops, including dealers, will often overlook the friction modifier. Without it, the rear differential will grab like you are describing.
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
Differential fluid was changed and the friction modifier was added before the back brakes were done, even did the figure 8 thing and have about 4-500 km on it since it was done. We are pretty much stumped as to where to go next. 
Regards;
Len
Regards;
Len
Senior User
Joined: Feb 2005
Posts: 132
Likes: 0
Lentor,
I too have been having this problem. (97' 2.3L 5spd 2wd) I asked several mechanics about it and have gotten different suggestions. One possibility was the engine was getting bogged down (which in my case it isn't because I can keep the engine revs up and it still happens) and the other was the clutch is slipping. My problem only happens sporadically and every time I try to reproduce it for the mechanic I have no luck. I do not want to get into replacing the clutch with my limited experience and the $$ to have someone do it is a little prohibitive unless I know that is the problem. So I too am stumped as to where to go next. For the mean time, I am just living with it.
I too have been having this problem. (97' 2.3L 5spd 2wd) I asked several mechanics about it and have gotten different suggestions. One possibility was the engine was getting bogged down (which in my case it isn't because I can keep the engine revs up and it still happens) and the other was the clutch is slipping. My problem only happens sporadically and every time I try to reproduce it for the mechanic I have no luck. I do not want to get into replacing the clutch with my limited experience and the $$ to have someone do it is a little prohibitive unless I know that is the problem. So I too am stumped as to where to go next. For the mean time, I am just living with it.
Senior User
Joined: Feb 2005
Posts: 132
Likes: 0
Greg,
What should I look for to determine if the mounts are bad? I did a cursory inspection this evening and didn't notice anything obvious. I did notice that the stuttering is starting to become more noticeable (fiancee actually felt it tonight).
Thanx!!
What should I look for to determine if the mounts are bad? I did a cursory inspection this evening and didn't notice anything obvious. I did notice that the stuttering is starting to become more noticeable (fiancee actually felt it tonight).
Thanx!!
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
Better but not completely
Good morning everyone.
We are not sure as to what turned the trick, did too many things at once on the last visit to the garage.
Still vibrates a bit accelerating from a stop while turning (nowhere near as bad as before), but doesn't do it when going straight
.
I have this feeling that the back brakes had a lot to do with the problem, the old drum from the passenger side had some wierd black spots on the braking surface (wouldn't wipe off, almost as if the drum surface had been contaminated with brake or differential fluid)
Or - maybe the friction modifier needed more time (kilometers) to work into the limited slip clutch.
hydrology_joe- I had the same problem with my mechanic not seeing the problem because he wouldn't get to working on it until it cooled down.
What I had to do to re-create the problem for him was to have him take it for a drive immediately after I came off the highway while the problem was most evident.
Hope this helps a bit.
Regards;
Len
We are not sure as to what turned the trick, did too many things at once on the last visit to the garage.
- Turned the drums, new drums but were out of round.
- Drained the excess tranny fluid, was overfull by about 1/2 to 3/4 liters.
- Rotated the tires. Can't for the life of me see why they would have anything to do with it.
Still vibrates a bit accelerating from a stop while turning (nowhere near as bad as before), but doesn't do it when going straight
.I have this feeling that the back brakes had a lot to do with the problem, the old drum from the passenger side had some wierd black spots on the braking surface (wouldn't wipe off, almost as if the drum surface had been contaminated with brake or differential fluid)
Or - maybe the friction modifier needed more time (kilometers) to work into the limited slip clutch.
hydrology_joe- I had the same problem with my mechanic not seeing the problem because he wouldn't get to working on it until it cooled down.
What I had to do to re-create the problem for him was to have him take it for a drive immediately after I came off the highway while the problem was most evident.
Hope this helps a bit.
Regards;
Len