ported intake manifold problem

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Jul 11, 2009 | 09:28 AM

mikemassi

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Joined: Apr 2008

Posts: 101

ported intake manifold problem

i just got finished putting a ported intake manifold on and after everything was all done i started the car and it stalls right away. if i keep hitting the gas it will keep running but the second i let off the car stalls. anyone have any ideas?

Jul 11, 2009 | 10:30 AM

RUDEDOG

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Joined: Feb 2006

Posts: 582

From: Atlanta

Sounds like you have a massive vaccum leak somewhere. Did you forget to hook up the brake booster?

Jul 11, 2009 | 04:11 PM

Injuneer

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Joined: Nov 1998

Posts: 71,094

From: Hell was full so they sent me to NJ

Or you forgot to connect the harness to the IAC motor.

Jul 12, 2009 | 09:13 AM

95Blackhawk

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Joined: Jul 2002

Posts: 1,277

From: Phoenix, AZ

If that is all you did, it is something simple.

Jul 13, 2009 | 09:34 AM

PWR SHFT

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Joined: Mar 2004

Posts: 421

From: South Riding, VA

Was the intake mounting surfaces angle milled? If your heads were not surfaced and the intake was, then that could cause some serious sealing issues.

Jul 13, 2009 | 03:45 PM

JAKEJR

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Joined: Apr 2007

Posts: 549

From: Lancaster, Texas

First thing I'd do is re-check the connection to the IAC, TPS and coolant temp sensors. Then I'd begin checking for vacuum leaks; hoses and gaskets.

Jake

West Point ROCKS!