How to check EGR componets

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Dec 17, 2007 | 04:10 PM

httyuwma

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Junior Member

Joined: Dec 2007

Posts: 1

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How to check EGR componets

I searched and found different answers here. So just to be certain: How do I check all the components on the EGR system for a 1987 Camaro 5.7 TPI engine. I have the components off the car.

EGR- Should it hold a vac off the car or bleed down?
Solenoid- Is this NO or NC and how to test?
EGR temp switch- How to test off the car?

Also how do purchase these parts?

Thanks so much!

Dec 27, 2007 | 09:46 PM

thegooseman

Senior Member

Joined: May 2006

Posts: 627

Likes: 1

From: Glendale, CA

Car: 1992 RS

Engine: LS1

Transmission: T-56

Axle/Gears: 3.42

Re: How to check EGR componets

I would also like to know this.

Dec 27, 2007 | 10:29 PM

Kevin91Z

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iTrader: (1)

Joined: Jul 1999

Posts: 10,950

Likes: 26

From: Orange, SoCal

Car: 1990 Pontiac Trans Am

Engine: 355 TPI siamesed runners

Transmission: Tremec T56

Axle/Gears: 12-Bolt 3.73

Re: How to check EGR componets

EGR should hold the vacuum when you push in the diaphragm and put your finger over the hole. If the diaphragm releases, its bad.

I dont know the other two answers.