jiggles at 60mph
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jiggles at 60mph
i have a 2000 x psd with 92,000 miles. i have searched the threads to find a solution and i still don't have one. it has new BFG tires and just had the balancing rechecked. tire preasures are 50/55, new edelbrock shocks, new powerslot rotors and hawk pads, new rear helwig sway bar, tierods replaced.
The vehicle is ok still you go about 55 -60 and they it jiggles until about 70 then it goes mostly away. i just want to get this thing to ride down the high way without shaking everything inside.
i looked at the drive shaft, it is not loose. i think im going to take it to a place that can balance the tires on the vehicle to rull out a wheel, or rotor problem.
any ideas???
The vehicle is ok still you go about 55 -60 and they it jiggles until about 70 then it goes mostly away. i just want to get this thing to ride down the high way without shaking everything inside.
i looked at the drive shaft, it is not loose. i think im going to take it to a place that can balance the tires on the vehicle to rull out a wheel, or rotor problem.
any ideas???
Cargo Master
Joined: Oct 2004
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From: Seneca, SC
sounds like a drivetrain issue, check your motor mounts, tranny mounts, motor to tranny bolts, and so on. You seem to have tires ruled out, and you would have gotten an alignment with the new tie rods, so although those would have been my first guesses, it seems they were yours as well.
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had new bfg's balanced twice but still shimmied between 65-80. took them back to belle tire and they balance them on a road force balancing machine. the machine measures everything related to the the rim/tires. I had never seen them use this machine on my vehicles before and they told me they dont use it much because it takes alot of labor and nobody wants to pay more for the "special balancing". they usually charge 20 bucks a tire to use the machine because it takes a couple of hours to do a set.
The machine even tells the guys which tire/rim to put where to get the least amount of vibration and pull. Night and day difference! no hint of shake! I will spend the extra money to have this done on all my vehicles from now on.
The machine even tells the guys which tire/rim to put where to get the least amount of vibration and pull. Night and day difference! no hint of shake! I will spend the extra money to have this done on all my vehicles from now on.
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Ok, i had the Raod Force Balancing done, and it is smoother, i just did it yesterday and i'll need to test it for a few days. They only found issue with 2 of the 4 being balanced. those 2 now have alot less weight on them. I have always wondered if those Edlebrock shocks just added to a ruffer ride and and was some of what i feel driving on the highway.
Thanks
Thanks
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I wold say the road force balance made it better, but i still have a clunck going over some bumps. it sounds like the drivers rear area. i have been under it and looked at drive shaft, exhaust brackets ect i find nothing and two tire stroes find nothing. I keep wondering if the shock is bad or installed wrong or what. i still think with all that's new underneath, this Ex should not jiggle at all at any speed. you should see my cell phone car kit vibrate rolling down the highway.
thanks
Chaz
thanks
Chaz
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The clunk is a separate issue, probably. Check the rear shock upper mounts. The retainers for the bolt will crack and you will have loose shocks. I ran Edelbrocks for 75K mile on 00 Ex, now have on 03, no problems ever. New shock should not cause jiggle. How are the ball joints? Some last longer, but diesel Ex's will wear them out faster. On the 00 Ex the cab mounts will cause a clunk, especially under the drivers floor. One more thing, there was a TSB in 2000 for the jounce bumpers on the rear anti-wrap leaf. In cold weather they will clunk.
If you have alot of weight on one wheel it may be out of round, if you have BFG KO's they sometimes are hard to balance. IMHO unless the ball joints are new, that is your problem.
If you have alot of weight on one wheel it may be out of round, if you have BFG KO's they sometimes are hard to balance. IMHO unless the ball joints are new, that is your problem.
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Ball joints are 10 months old
The Dealer fully inspected the suspension and says all ok
the tire store again today roadforced balanced and determined a bad 3 month old BFG tire and replaced it. 80% better now but should still be smoother at 65mph. Tire store says Edlebrock ISA shocks are ruff ridders and along with BFG all-terain, you'll feel every crack. the tire store says monroe reflex and the ride will improve.
this PSD Ex has 94,000 miles and i want to put on 400,000, but the ride has to improve. any help out there would be great.
The Dealer fully inspected the suspension and says all ok
the tire store again today roadforced balanced and determined a bad 3 month old BFG tire and replaced it. 80% better now but should still be smoother at 65mph. Tire store says Edlebrock ISA shocks are ruff ridders and along with BFG all-terain, you'll feel every crack. the tire store says monroe reflex and the ride will improve.
this PSD Ex has 94,000 miles and i want to put on 400,000, but the ride has to improve. any help out there would be great.
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Cargo Master
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go with better tires the next time you get some. If you're shooting for 400k, then you'll get to that point sooner or later. A good set of road tires will help out a lot.
The next thing to get might be a set of centripetal balancers for your wheels. These aren't that common, but for the most part they will dynamically balance your wheels, it will cost you about 200 for a set of them, but as you're currently shelling out the money for road force balancing, they may be a way to go. I'm gonna do some searches for a brand name, but maybe somebody will save me the trouble if they can remember the brands for them. This should all but eradicate the main source of the shaking due to tires.
As for the drivetrain and suspension, go with the highest quality components that you can get, I'd recommend moog for the suspension components, and for shocks, I really thought the edelbrock would be good enough, but maybe koni's or the high end monroe would be better.
The next thing to get might be a set of centripetal balancers for your wheels. These aren't that common, but for the most part they will dynamically balance your wheels, it will cost you about 200 for a set of them, but as you're currently shelling out the money for road force balancing, they may be a way to go. I'm gonna do some searches for a brand name, but maybe somebody will save me the trouble if they can remember the brands for them. This should all but eradicate the main source of the shaking due to tires.
As for the drivetrain and suspension, go with the highest quality components that you can get, I'd recommend moog for the suspension components, and for shocks, I really thought the edelbrock would be good enough, but maybe koni's or the high end monroe would be better.
Cargo Master
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From: Seneca, SC
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