runs bad when i put auto trans in gear

J

jerryt

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Joined Feb 1, 2006

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197 Posts

Discussion starter · #1 · Oct 14, 2007

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Hi

When i have the car started in park the car seems to run ok. And then when I put it in drive or reverse it runs really bad. I think its a vacum leak. I have a 383 chevy with a 350 trans. Any suggestions

Jerryt

 

D

dawg

· Premium Member

Joined Mar 15, 2004

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4,062 Posts

#2 · Oct 14, 2007

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check the vacum modulator on the tranny.
and the hose going to it.

 

JimM

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Joined Dec 7, 1999

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22,190 Posts

#3 · Oct 14, 2007

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More tuning.

Egnie specs, cam particularly?
Torque conveter type / stall speed?

Idle rpm in neutral?
Idle rpm in gear?

Do you have a timing light and a vacuum gauge?

If you do, what's your idle vacuum in neutral?
in gear?