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JUST GOT AN H3=It has a slight Vibration in the Steering Wheel at Idle and Stop Light

amrg

Well-Known Member
Messages
2,317
Location
Qatar
Most common items to check:

Maf sensor needs cleaning
Throttle body needs cleaning
Engine mounts are worn
Plugs are bad

Probably many other things im missing...

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4speedfunk

Well-Known Member
Messages
4,250
Location
Tardville
Check your the coil paks. Because the plug wells are vertical...they tend to capture water and short out the high voltage wires going to the plugs.
This problem is compounded by the design of the hood which funnels water down onto the motor. If you let them go long enough...a code will set and tell you which cylinder has failed.
 

ludevick

Well-Known Member
Messages
99
Location
Northern California
Mines been like this since I got it too. The 5 cylinders are inherently unbalanced. After changing the spark plugs cleaning the MAF sensor, throttle body, replacing the belts and pulleys and checking the coil packs I’ve just gotten used to it. Ive heard it’s not at all uncommon.


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alrock

El Diablo
Staff member
Messages
10,677
Location
Scottsdale
I think amrg and 4 speed are on the right track. Figure out anything that could make the engine run less smoothly, or move about more freely (worn out engine mounts). It's a good practice with picking up a used vehicle to treat it to a thorough maintenance as you may not know the history, or have been given an accurate history. New fluids, plugs, belts, cleaning MAF sensor, throttle body. Check engine and diff mounts for wear.
 
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