2004 Tahoe vibration ????

[crazycrew]

OK ya'll. I have a vibration I need help tracking down. It's kinda hard to explain, but it's the kind you can hear, AND feel. Kinda like a reverberating feeling. It happens mostly at slow speeds if i'm slowing down to turn, or backing out of the garage. The things I've thought of, and already checked have yeilded me no success at remedying this vibration.
Here are the things i've already checked: exhaust, U joints, and motor mounts

Here's whats on my mind: fly wheel, convertor

I hope it's not anything major!

TIA, Brooks

 

[crazycrew]

No one? Next idea is harmonic balancer????

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[BA.]

really? Backing out of the driveway you can feel a vibration? What kind of frequency? I presume you'd notice if it was a tire at such a slow pace.

Could it be a bit of a mis-fire, like a bad coil or plug?
Can you go to a parking lot, get going in reverse so you can feel the vibration, then coast in Nuetral and hold higher engine revs to see if the vibration follows the engine speed or the vehicle speed?

 

[crazycrew]

I could try that, but it happens in forward gears, as well as reverse.

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[SLCHOE]

It's your 22's rubbing on a 2/4 Belltech at full steering crank.

 

[crazycrew]

I don't have 22s, or a belltech

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[crazycrew]

Any other suggestions? I checked the harmonic balancer and it seems to be good from what I could tell. . Is there a way for me to check the convertor without actually pulling it and sending it in?

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[BA.]

I don't see where you separated engine caused vibration from drivetrain and rolling vibrations.

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[crazycrew]

It does the vibration whether I'm moving or still.

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[BA.]

Can you feel it over 3000 rpms?

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[crazycrew]

Now you're making me second guess myself. . I'm gonna have to go ride again

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[BA.]

Now you're making me second guess myself. . I'm gonna have to go ride again

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You can do it just sitting in Park right?

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[crazycrew]

Just checked. . No, it does not do it at higher rpms

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[BA.]

I think as a rule of thumb minor spark issues are more noticeable at lower rpms..
It may not hurt to clean the MAF sensor. Looking for simple things first, right?

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[crazycrew]

Yes. I wanna spend as least as possible, lol.

Supposedly the plugs and wires were changed by the po not long before I bought it. .

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[clandr1]

Yes. I wanna spend as least as possible, lol.

Supposedly the plugs and wires were changed by the po not long before I bought it. .

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How long ago did you buy it, both time and mileage wise? How long ago did these symptoms start?

 

[crazycrew]

I bought it in November. . Didn't notice it in the test drive, but noticed right after I got it home . . I've had it about 7000 miles

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[crazycrew]

Would I possibly get any random misfire codes or anything of that nature if it were plugs/wires related?

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[clandr1]

My guess is the PO changed the plugs and wires in an effort to eliminate the symptom, but misdiagnosed. Is your CEL on?

 

[crazycrew]

No cel

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