Shaking problem

Discussion in '1989 - 1992 Ford Ranger' started by DLeathers44, Mar 9, 2011.

  1. DLeathers44

    DLeathers44 New Member

    The truck drives fine until it gets up to about 40. Then once it hits 40 in 3rd gear, it will start vibrating and shaking. It almost feels as if it's coming from the transmission? Or possibly the motor? I don't know, and haven't been able to pin-point the problem. But once I get out of 3rd, and shift into 4th and get up to about 50, the vibration goes away. And that's the only time that it does the vibration and shaking. Any ideas/answers? I could really use the help.
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  3. Hooligan

    Hooligan Rangerholic!!

    Any chance it could be bad rotors or a balancing issue and not an engine/trans problem?
  4. OP

    DLeathers44 New Member

    I honestly have no idea. Like I said, I've been completely unable to pin-point the problem.
  5. Hooligan

    Hooligan Rangerholic!!

    Try the easy thing first, balance the tires
  6. OP

    DLeathers44 New Member

    Okay. Will do. Hopefully that will knock out the shaking, but who knows. Lol.
  7. klinger86

    klinger86 Moderator

    i agree with hooligan start with the easy and work towards the hard... yeah it may seem like your putting alot of money in to it... but look on the bright side when you finally figure out what's causing the problem all the stuff that you have already changed won't need changing for a while.
  8. Brinker88

    Brinker88 Black sheep o' the family

    could be a mess of things. Balljoints, TREs, unbalanced tires, broken belts in the tires, worn out bushings, etc. Get under there with a light and start trying to move ****. Also check the tires for any unnatural wear or bulges that might be visible.
  9. teemgreen99

    teemgreen99 New Member

    I havent seen alignment 1987 is doing the exact same thing and im 99% positive it needs tires balanced front end alignment possibly brakes. Could be one or all three but when im done it wont do that anymore. Let us know what your issue is/was
  10. sphinx

    sphinx New Member

    also, don't forget to look at the drive shaft. weight mighta fell off, u-joint froze up, got a nasty dent from high centering on a rock while 4 wheeling...
  11. Ol'Ranger

    Ol'Ranger New Member

    Had the same issue of zones where it would shake hard. I could tell it was driveline though. Felt like it was right under me AND the shifter had a lot of vibes to it.

    I was expecting to check the drive shaft and find all kinds of play. Turns out I had none. I actually parked the truck for a while thinking it may be the rear end or the transmission output.

    Finally one day recently I got mad and took the drive shaft out. Turns out on side of the joints is a little stiffer to pivot than the other. So they are not coming out but rather getting stiff and causing the vibration.

    Gotta get somebody to get them changed out for me because I fear bending the ears on this thing. I just don't have the correct tools for it.

    Can't wait to have my old truck back. I might fix the dang thing up now, as it is of the age now it would be kinda cool again ;)
  12. Scrambler82

    Scrambler82 Old Guy User

    If it turns out not to be mechanical, what is the alternator output measuring ?

    If it is not putting out the required voltage things can get weird.
  13. stdyhand

    stdyhand New Member

    Jack up each front tire, try to wiggle the tire to see if it moves. Your just checking the bearings. You can also spin the tire and see if it makes any noise, like a grinding sound. Unbalanced tires could cause it, but it usually progresses with speed. If you don't think it is front end related and instead engine related, do you have any check engine codes?

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