engine vibrations

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Jul 25, 2004 | 02:39 PM

sfc

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engine vibrations

I have an 86 f150, 300 i-6. Runs great, but has engine vibrations at @1000 and 2000 rpms exclusively. These are not driveline vibrations and not engine misfires. I have replaced the harmonic balancer, no change in the vibrations. Thanks

Jul 25, 2004 | 02:54 PM

Jimbare

all alone in the world

Joined: Feb 2002

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From: oklahoma

standard or auto? anything else been done that you know of ? how long has it been doing it?

what happened right before it started?

need a little more to go on!

jim

Jul 26, 2004 | 07:03 PM

rocknwhiteboy

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If other than point type dist. the OB computer system may be the culprit. Sounds like excessive fuel dumped into cylinders. That means poor gas mileage. Like Jim need more info to help.

Jul 26, 2004 | 07:47 PM

clay01

Cross-Country

Joined: Jan 2004

Posts: 91

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What kind of shape are the motor mounts in?

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