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Pravus
Location: Chicago Area Gender: Male Total Likes: 1 like
Now the two key words for tonight - "caution" and "flammable"...
| | | | | '92 Toyota Forerunner Mechanical Problem < on 12/10/2007 8:40 AM > | Reply with Quote
| | | So I have come into the position of getting a free car from my sister on the condition that I fix a problem with it, I know enough about cars to do basic things, change tires, change oil, brake jobs, general upkeep type stuff.. I figured where better to go then the car board to seek advice.. The problem is there is a jerking or rumbling at lower speeds, and the faster you go the faster it gets, around 50+ it starts to vibrate the car pretty seriously, at about 70 the desire to go any faster with it goes away entirely.. First thing I thought of it being was maybe a really bent rim, but the rims were all good and that idea didn't really take into account that at lower speeds the front of the car somewhat does a slight sway back and forth (car goes straight body kinda shifts around).. My buddy had a car with a badly bent rim, that was more of an up and down bouncing vibration, this is more side to side vibration, and I am also 90% sure whatever is wrong has to do with the front then about 60% sure it's the front left.. When making sharp turns while accelerating at low speeds (like a U turn) the car kinda jolts around as it turns (as in the turn is fixed but the car turns less and more sharply in almost a pulsation) The next idea came from my dad who knows more then a bit more then me about cars, Last year or so my dad took a look at it and thought there was a bad U-Joint maybe.. He greased them up and it got 'better' but not fixed.. So the question would be, does this sound like a U-Joint problem, and how can you tell if a U-Joint is bad.. He claims there to be alot of them in the car and I really don't want to just randomly start replacing crap until it goes away as that may get rather expensive.. Ahead of time I'd like to thank any input from anyone that was willing to read this post as it turned a little longer then intended and strayed slightly, But I really wasn't sure how to really describe how the car felt.. I have no doubt that if some of you more experienced with cars drove the thing for a block or two you could tell me exactly what the problem it, it's alot harder to describe it to you though and get the same input..
| Live to Serve, Serve to Live.. |
| Samurai Vehicular Lord Rick
Location: northeastern New York Total Likes: 1902 likes
No matter where you go, there you are...
| | | Re: '92 Toyota Forerunner Mechanical Problem < Reply # 1 on 12/10/2007 9:05 AM > | Reply with Quote
| | | I was under the impression that FourRunners used a CV-joint style front axle instead of live axle U-joints. Just for shits and giggles and to maybe give me a better idea of what's going on, jack the front of your vehicle up and support it with jack stands. Make sure that the front suspension can dangle freely. Next I want you to grab the tire at the 9 oclock and 3 oclock position and wiggle the tire (right in and then left in). If it moves/wiggles significantly, you have tie-rod issue. If you grab the wheel at the 12 oclock and 6 oclock position and perform the same wiggle/move (push in and out- top and bottom), then you have a balljoint issue, as in one is about to fall out. also, of there is a significant amount of 'play' in the wheel, the wheel bearing/hub may be shot... as I am thinking about this, it has to be one of those three things. I am leaning towards hub/bearing, just because the hub/bearings rumble when they start to fail and have a real serious wobble when they are about spectacularly fail (as in fall apart). After re-reading your symptoms again and again, man, am i thinking hub/bearing.
try these things and see what happens.
[last edit 12/10/2007 9:07 AM by Samurai - edited 1 times]
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| Pravus
Location: Chicago Area Gender: Male Total Likes: 1 like
Now the two key words for tonight - "caution" and "flammable"...
| | | | | Re: '92 Toyota Forerunner Mechanical Problem < Reply # 2 on 12/10/2007 9:54 AM > | Reply with Quote
| | | 10-4, I'll try that out tomorrow and see what I come up with, Isn't there normally alot of grinding sounds when the hub/bearings goes? By rumbling I didn't fully mean sound, it's more of the sway of the car and how it rides, although in the end it's a SUV so I really am not under the impression that it shouldn't ride 'smooth' so I am not sure how much of the sway and bumpy ride is SUV and how much is whatever is messed up.. It doesn't really help that I have never driven the thing when it didn't have this problem though.. It does feel different then when my Volares bearings died though, but again not sure if it's just a "different style of car different feel of the problem" kind of deal (although I know the wiggle you talk of) As for CV/U joint, I have honestly no idea which the car has, although if I dug around for a while and found one in there I could possibly tell you which it is, also my dad could have said U and meant CV *shrug* As much as Wikipedia can be flawed the "fault finding" section of the CV joint page 'somewhat' sounds like what I have.. http://en.wikipedi...ant-velocity_joint Although there is sound with the problem, At around 50 it sounds/feels almost like I have a subwoofer playing a wave of base (wave as in a slow pulsating intensity, and the kinda bass like at a shitty club where you can 'feel' the music rip through your chest..) I suppose the noise 'is' there at lower speeds, but it's just not /nearly/ as noticeable, and harder to distinguish from random road noise like going through snow slush and whatnot..
| Live to Serve, Serve to Live.. |
| Samurai Vehicular Lord Rick
Location: northeastern New York Total Likes: 1902 likes
No matter where you go, there you are...
| | | Re: '92 Toyota Forerunner Mechanical Problem < Reply # 3 on 12/10/2007 5:09 PM > | Reply with Quote
| | | Posted by Pravus 10-4, I'll try that out tomorrow and see what I come up with, Isn't there normally alot of grinding sounds when the hub/bearings goes? By rumbling I didn't fully mean sound, it's more of the sway of the car and how it rides, although in the end it's a SUV so I really am not under the impression that it shouldn't ride 'smooth' so I am not sure how much of the sway and bumpy ride is SUV and how much is whatever is messed up.. It doesn't really help that I have never driven the thing when it didn't have this problem though.. It does feel different then when my Volares bearings died though, but again not sure if it's just a "different style of car different feel of the problem" kind of deal (although I know the wiggle you talk of) As for CV/U joint, I have honestly no idea which the car has, although if I dug around for a while and found one in there I could possibly tell you which it is, also my dad could have said U and meant CV *shrug* As much as Wikipedia can be flawed the "fault finding" section of the CV joint page 'somewhat' sounds like what I have.. http://en.wikipedi...ant-velocity_joint Although there is sound with the problem, At around 50 it sounds/feels almost like I have a subwoofer playing a wave of base (wave as in a slow pulsating intensity, and the kinda bass like at a shitty club where you can 'feel' the music rip through your chest..) I suppose the noise 'is' there at lower speeds, but it's just not /nearly/ as noticeable, and harder to distinguish from random road noise like going through snow slush and whatnot..
| what you're describing, the real deep noise, is usually associated with a wheel bearing failing. Now, with a four wheel drive, the sound may be amplified as well because most of these have the bearing integrated with the hub assembly, much like certain Front WD cars. When a CV shaft fails, you'll get a serious clicking noise up front on turns (usually with a front-WD car), but realistically, there isn't much play in them. That's not to say that it couldn't be walking around in the front of the car. My gut feeling is still wheel bearing.
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| Professor Chaos Noble Donor
Location: Halifax, NS Gender: Male Total Likes: 8 likes
| | | | Re: '92 Toyota Forerunner Mechanical Problem < Reply # 14 on 12/13/2007 4:22 PM > | Reply with Quote
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| "Toyota vehicles are marketed to people who would be more excited about getting a new fridge than a new car I think." -Bandi |
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