Developed a wobble - Diesel Forum - TheDieselStop.com
1999-2007 General Questions General questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

 
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post #1 of 7 (permalink) Old 03-11-2019, 04:27 PM Thread Starter
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Developed a wobble

While driving at any speed there is a wobble like an out of round tire. I believe it is the from the back tires (the steering wheel doesn't shake). At about 40-50 mph it literally shakes the truck. While it does wobble there is nothing like associated bearing noise. I checked the lugs the first thing. That is what it felt like the problem was Jacked it up and checked for bearing play. I will next go and check tire balance though it doesn't feel like that. About 30k miles ago I replaced the front wheel being assembly. In this years 4 wheel drive it is full replaceable unit. I haven't hit anything like deep pot holes. the worse thing is that it is getting worse.



Any ideas?

Late '99, F-250 7.3L, PSD, Super Duty, AT, 4X4, Crew Cab, 235 Mich tires, MBRP 4" Exhaust, 6-setting DP-Tuner (set for +80hp Econ mode), K&N Filter and Intake Tube, 203 thermostat, coolant filter, A-Pillar Isspro gauge set (pyro pre-turbo, trans temp, boost), Turbo Master Wastegate Controller, 6.0L tranny cooler, BTS valve body, rebuilt trans at 196K mi, bilstein shocks, HPOP rebuild, Fuel and oil crossover, Chevron Delo 400 10-40w, Zoodad mod, late model cup holder.

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post #2 of 7 (permalink) Old 03-11-2019, 04:55 PM
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Check the wheels if you still have factory wheels they are hub centric and if the center has worn that could be part of the problem. You could try putting the rear wheels on the front as well


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2000 F250 7.3 4inc exhaust, Ts 6 pos chip witch custom tunes, Built 4R100 w billet triple disc converter, 6.0 trans cooler and deep tans pan, CCV mod, 4 gauge pod A piller,Boost,Trans temp,EGT,fuel pressure AFE intake,RIFFRAFF Frx fuel Rail dead head fix black spring,High Flow banjo bolts,High Flow CVD Fitting, Harpoon mod,Diesel site adrenaline HPOP,AIH Plug,Plenum Reinforcing Inserts. FULL FORCE DIESEL STAGE 1.5 single shot injectors, Garrett powermax GTP38R and blank pedestal, RIFFRAFF Intercooler CAC Boots with complete clamp kit , scanegauge 2
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post #3 of 7 (permalink) Old 03-12-2019, 12:58 AM
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Check the U-joints and carrier bearing, I had a tire tread let go last summer, it had intermittent wobble.
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1999 F350 AUTO 4x4 CC LB DRW 4.10
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post #4 of 7 (permalink) Old 03-13-2019, 09:37 AM
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I once had a bad wobble that turned out to be a tire defect, a bubble formed on the inside and the tire needed replacement to fix it. Thought it was my diff at first.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
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post #5 of 7 (permalink) Old 03-13-2019, 02:17 PM
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What Denny and 69mach1377 said about tire defects. I've had that happen as well. Definitely check the tires before you have a blowout.

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'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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post #6 of 7 (permalink) Old 03-15-2019, 12:54 PM
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Check both front and back. Even though it seems as if it is coming from the back, sometimes it is hard to tell exactly where it is coming from; so check all four corners. Check tires for blebs, bubbles, nails, tread coming loose. Double check all lugnuts. Jack up each wheel and move each wheel side to side and up and down to check for any looseness. Also check behind the front wheels. There are some bolts that hold the wheels on. If those bolts come loose, a wheel may fall completely off.

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post #7 of 7 (permalink) Old 03-20-2019, 06:14 PM Thread Starter
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Yes it ended up being a tire delamination: bleb. You couldn't see it until the tire was off the ground and you could spin it. The tire was egg shaped. No bearing problems found. I saw the same problem on a different thread here. The tires have a good 70K miles. There are Michelins and have been good tires. I'll get another set this week. Costly fix but easy.

Late '99, F-250 7.3L, PSD, Super Duty, AT, 4X4, Crew Cab, 235 Mich tires, MBRP 4" Exhaust, 6-setting DP-Tuner (set for +80hp Econ mode), K&N Filter and Intake Tube, 203 thermostat, coolant filter, A-Pillar Isspro gauge set (pyro pre-turbo, trans temp, boost), Turbo Master Wastegate Controller, 6.0L tranny cooler, BTS valve body, rebuilt trans at 196K mi, bilstein shocks, HPOP rebuild, Fuel and oil crossover, Chevron Delo 400 10-40w, Zoodad mod, late model cup holder.

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