LB9 EGR help
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Joined: May 2007
Posts: 34
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From: SoCal
Car: '89 IROC conv.
Engine: 5.0L F
Transmission: T-6 world class
Axle/Gears: yes
LB9 EGR help
89 5.0 LB9 TPI motor. on the EGR solenoid that sits under the coil bracket-what plugs into the back of the solenoid next to the electronic plug? It looks like maybe a vacuum plug. I know that the EGR valve and throttle body plug into the front of the solenoid, but can't find a loose hose or wire. HELP!!! Please!!! going for smog tomorrow. THANX
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Joined: Sep 2003
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: LB9 EGR help
Sounds like you have it covered. The hose to the EGR under the plenum. The hose that goes under the throttle body. Then the electrical plug.
Thread Starter
Junior Member
Joined: May 2007
Posts: 34
Likes: 1
From: SoCal
Car: '89 IROC conv.
Engine: 5.0L F
Transmission: T-6 world class
Axle/Gears: yes
Re: LB9 EGR help
yes, but there is a third vacuum connect port on the back of the solenoid. what goes there??????
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Joined: Sep 2004
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Car: 1986 Camaro Z28
Engine: 305 TPI
Transmission: Who orders an auto in a Camaro??
Axle/Gears: Economy gears..once again, WHY?!?
Re: LB9 EGR help
nothing goes there, there should have been a cube shaped foam filter over it held in by the little prongs on both sides.
Thread Starter
Junior Member
Joined: May 2007
Posts: 34
Likes: 1
From: SoCal
Car: '89 IROC conv.
Engine: 5.0L F
Transmission: T-6 world class
Axle/Gears: yes
Re: LB9 EGR help
thanks a ton, guys. that explains why, after spending a half hour looking under and behind the block, I couldn't find anything.... Awww, Chevy, How I love thee!!!
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HoosierinWA
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Oct 7, 2015 10:15 AM
