engine shakes just above

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Jan 16, 2010 | 03:11 PM

rich Z

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From: GARDEN GROVE, CA

engine shakes just above

Idle to about 2k rpm then it's smooth.

Jan 16, 2010 | 06:12 PM

6.0 silverado

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Quote:

Originally Posted by rich Z

Idle to about 2k rpm then it's smooth.

Good luck. Took me a good few months to chase down a vibration.

Jan 16, 2010 | 06:16 PM

Breathing Fire

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From: Pocatello Idaho

Sounds like a weak coil. Sounds like once output increases above 2k rpms it is smoothing out because the coil is catching up.

Jan 17, 2010 | 01:12 AM

ae13291

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From: san fernando valley, california

how bad is the vibration? is it only on idle? mine slightly shakes on the steering wheel at 2k rpms but thats cuz of the poly engine and tranny mounts

Jan 17, 2010 | 01:51 AM

rich Z

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From: GARDEN GROVE, CA

It's only at idle. The car in general isn't running right. The fuel trims have leaned out some over time and power and mileage have fallen a lot.

Jan 17, 2010 | 07:31 AM

Armageddon

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From: AL

no codes?

Jan 17, 2010 | 03:31 PM

rich Z

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From: GARDEN GROVE, CA

No codes and have checked about everything. Cleaned maf, tried another maf, tested tps sensor, checked for vacuum leaks, tried seafoam in the gas, tested fuel pressure, replaced fuel filter. The plugs are showing a little lean the 02 sensors are switching good. They were replaced a couple yrs ago. The exhaust has weird noise at times.