'96 F150 "bump"
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'96 F150 "bump"
Hi guys, I appreciate the response on my transmission from Rich.
I'm checking into the Baumann kits. I have yet another question.
My '96 F150 4x4 automatic 302 has a noticable "bump" in the drivetrain when I start off going forward. I last experienced this on a '90 f250 and wrote it off to axle wrap. I have checked the pinion nut, as I have seen that it being loose can cause a bump. Is it axle wrap here too? It does this even when taking it easy on the gas. Any suggestions on what to look for? Thanks, I'm really enjoying this site.
I'm checking into the Baumann kits. I have yet another question.
My '96 F150 4x4 automatic 302 has a noticable "bump" in the drivetrain when I start off going forward. I last experienced this on a '90 f250 and wrote it off to axle wrap. I have checked the pinion nut, as I have seen that it being loose can cause a bump. Is it axle wrap here too? It does this even when taking it easy on the gas. Any suggestions on what to look for? Thanks, I'm really enjoying this site.
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'96 F150 "bump"
I have a 95 F-150 351 extended cab swb. Had the rear end rebuilt, pinon gear bearing and all axle bearings were replaced. I had the same type of thump or squeak when I first start forward. I also replaced all shocks and lubed everything I could think of and see. Still have the thump,squeak! Anyone that can offer some advice please let us know.
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'96 F150 "bump"
I have a '96 F150 ext.cab that has the same lousy 'bump'. I've been under it a few times trying to figure it out with no luck. I hope someone out there figures it out because it is very annoying.
Steve
Steve
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'96 F150 "bump"
Added note, I even pulled the spare off to see if that was it. I hate giving my neighbor a ride, he is a demented Chev lover as well as a professional wrench and when I asked him what he thought it was he said " It's a Ford"
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'96 F150 "bump"
Mine does the same thing. It's not so bad as to make me look in the mirror to make sure I didn't leave anything behind every time I pull away from a stop, but it is a PITA. I just accept it as another one of those beauty characteristics that make these trucks so much fun. Any clues as to what it is though would be appreciated.
1992 F150 Supercab SB 4x4 302 AOD 3.55 31x10.5 All Terrain on Ford 15x8 Ralleys
1992 F150 Supercab SB 4x4 302 AOD 3.55 31x10.5 All Terrain on Ford 15x8 Ralleys
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Fleet Mechanic
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From: In my House
'96 F150 "bump"
Well, I know when i had my 97 F150, they had this problem as well, and the fix was to replace the slip yoke. There "temporary" fix was to pack the splines with grease....only to wear away after about 2000 miles. The slip yoke is the universal knuckle that comes out of the transfer case. Basically, youneed to drop the driveshaft, then the slip yoke pulls right out of the t-case. You will lose some fluid when doing this. I guess I have been blessed with mine so far. I haven't had the noise yet.
Hope this helps.
Rich
Hope this helps.
Rich
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'96 F150 "bump"
The bump you feel is the slack being taken out of the ring and pinion when you drive forward,if you have a auto trans.I wouldn't worry about it unless you have excessive travel in your pinion shaft.I have a 93 F150 that does the same thing I also had a 79 F150 that did it as well, both auto trans.
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'96 F150 "bump"
Hammer is right,and Ive talked to very experienced ford techs and they say that Ford set the backlash in the diff."loose" at the factory.I would say so the customer would not hear the rear diff. whine @ high speeds.I have a '95 F150 ext.cab 4x4 sb and mine does the same thing,but I can say thats the only time I ever hear any noise from it is at take off.
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'96 F150 "bump"
I have this same bump on my truck and looked deep into the problem on monday night. My truck had a bad real wheel seal and I was curious to look into the diff. housing to try and find my clunk which occurs only when put into drive. I have the good fortune of having a 20 bay shop at my disposal here at school so me and two of my friends tore into my trucks rear end and replaced the wheel seals along with the rear brakes and drums. Upon inspection of my trucks differential assembly we found that my spider gears have quite a bit of wear while the ring and pinion so none. My truck has 170,000 miles on it and has towed a two place steel horse trailer its entire life. I was very pleased to find no wear on the ring and pinion and am relieved to now know what my clunking is. Over spring break my trucks rear axle is going to get rebuilt so that the spider gears don't leave me stranded somewhere between Pennsylvania and Michigan.
93 F-150 4x4 XLT CC SB, 5.8L, E4OD, Off-Road, Super Cooling, Trailer, and Payload packages, Bucket seats, Pioneer CD, and the most beautiful factory paint scheme ever put on a truck: Light blue and silver!!!
93 F-150 4x4 XLT CC SB, 5.8L, E4OD, Off-Road, Super Cooling, Trailer, and Payload packages, Bucket seats, Pioneer CD, and the most beautiful factory paint scheme ever put on a truck: Light blue and silver!!!
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'96 F150 "bump"
I amy not be the wrench I was in my youth but I have never owned a truck or car that made such a noise. Usually when they did something was about to blow! As a fellow who worked his way through college as a mechanic and still does a fair amount of wrenching I agree that when it does it I'm tempted to look in the rear view mirror to see what fell off. Can we get Ford to comment. If it is set loose to prevent a whine the sudden catch up can't be real good on the pinion bearing as well as the rear end itself. I just had the pinion and axle bearings replaced as well as the whole rear end adjusted.
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'96 F150 "bump"
Well, like I said when I posed the question; I've had 3 Fords that did this. (96 f150 2wd auto, 90 F250 4wd auto, and 96 f150 4wd auto) I'm no serious wrench, but I did look in the pumpkin to see if I could find a reason in the f250 while replacing seals. Saw no obvious wear after 90, 000 mi.. I know several guys with manual trans Fords that don't have the "bump". If they are dialing it in this loose at the factory, it's bound to shorten the life of the unit to some extent. I wonder if we could get a comment from Ford on this.???
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'96 F150 "bump"
hi, i have a 86 f250 with 157000 miles on the clock and it doesn't make any noise. I don't know what rears your trucks had (have) in them but mine is a 10.25 and shows (sounds)of no wear must be a different rear I also have a c6 auto don't know if that is different or not but I have heard and felt that bump first hand in my 84 f150 with a c6 I also never found it. it doesn't seem to hurt them but it is annoying. I hope someone figures it out I would like to know what it is just for information. John