vibration at about 3000-4000 rpm

maranger

New Member
i hav vibration at 3-4000 rpm, it does it in neutral, and under load. any ideas? its a 99 3.0 ffv sup cab
 
Check your front tires to see if they still have the weights on them. It could be bad ball joints or bad wheel bearings. Jack up the front of your truck and use a bar to pry upwards on your wheel. If there is any play then you found your problem.
 
I was thinking it could b a pulley vibration but I don't have a nvh macine at home, wondering If anyone had a idea
 
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