C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette

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Rough idle

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Jun 28, 2015 | 06:19 PM

#1

Danny.reamer

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Instructor

Joined: Jan 2015

Posts: 200

Likes: 15

From: shreveport Louisiana

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Rough idle

Hey everyone the problem I'm having is my 81 shakes and idles really rough but only when in gear. If I put it in park it idles just fine. Any suggestions?

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Old

Jun 28, 2015 | 07:40 PM

#2

DUB

Race Director

Joined: Apr 2009

Posts: 19,294

Likes: 2,754

From: Charlotte NC

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Tune up issues.....or BAD GAS. Poor quality fuel will allow an engine to idle in PARK...but when it is put under a load...such as in GEAR...the fuel fails to provide the power to keep it running.

DUB

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