I have an interesting and so far difficult to solve problem. I just purchased a 1995 F-150 two wheel drive, long-bed with the 300 inline six and the 5 speed manual transmission with 93,000 miles on the truck. When I applied moderate to heavy braking the steering wheel moved up and down, not side to side, violently. I had a 1984 F-150 two wheel drive, long-bed with the 300 inline six and the 4 speed transmission with 138,000 miles on the truck and it did the same thing. ( Never tried to fix the problem with the 1984 )

So far I replaced the front rotors, brake pads, front wheel bearings and shocks all around. The problem is a lot less severe, but it is still there. It is worse with the clutch pushed in, it is hardly noticeable with the clutch out and in gear. The tires are in balance with no vibration or shimmy in the steering wheel up to 70+ mph.

Scratching my head on this one.

Anybody have any ideas?

Thanks

Michael


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2000 Expedition XLT, 4X4, 4.6, 3.55
C & C Group
K&N air filter
WeatherTech Vent Shades
Hellwig Sport Tech Anti-Sway Bar
Ford Dual Media AM/FM/Cassette/CD

1995 F150 XL, long bed, 4.9, 5 speed O/D, 4X2
Pioneer DEH-P4100 Head Unit

 

Only thing I can think of is worn front end parts?

 

check your aligment something about caster adjustments

 

Balanced tires and wheels can still be slightly out of round. Thoroughly check their runout, the entire suspension, and "all" alignment geometry.

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2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.

 

>>>>I had a similar problem on a Taurus SHO one time. It turned out a couple of my tires had separating steel belts that caused the vibrations. The tires were new and were put on by the dealer when I bought it, it was used. I checked all the things you listed before I finally found out what the problem was. I had a couple of different garages check the tires before during some of the multiple rebalance attempts we did but they didn't catch it. Took it to one last tire dealer who properly diagnosed the problem. Ditched the tires and the car drove perfectly.

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99 F150 XLT SC 4x4 4.6 liter Deep Wedgewood Blue

Westin Nerf Bars , Lund Bug Deflector , Kenwood 10 disc CD changer, Extang Black Max soft bed cover, Bodyguard Bed Liner

[This message has been edited by JPF1715 (edited 05-21-2001).]

 

I had a car that would wobble all over the road,and was hard to keep under control at all. I replaced the front tires,and it drove like it had a full suspension rebuild!
Tires can cause some wierd symptoms,I wouldn't be suprised if it was the tires,,,,,98

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98 F-150 4.6 Litre XLT 4x2 Ext. cab
prarie tan/tan int.
Yep,it has alot of stuff installed on it,I just got sick of lugging that huge sig. around,hehe
Come and see my newest pictures@ www.my-f150.com

Everything is shown there,except for the Superchip,Thanks Mike T!!

FENDER GUITARS ROCK!!!

Now,if it only looked like this in real life