CHEVY CLENING THE EGR VALVE

1991 Chevrolet Blazer

Tiny

bbigben72

August, 12, 2010 AT 9:07 PM

Engine Performance problem
1991 Chevy Blazer 6 cyl Four Wheel Drive Automatic

HOW DO I CLEAN THE EGR VALVE ON MY 1991 CHEVY S10 BLAZER WITH THE 4.3 ENGINE?

FOUND 2035 RELATED QUESTIONS

Egr Valve

11 ANSWERS
9 IMAGES

1 Answer

Tiny

bluelightnin6

August, 12, 2010 AT 9:11 PM

Open the hood and locate the EGR valve.

Unplug the vacuum hose or electrical connector from the top of the valve, depending on your particular model.

Unscrew and remove the two mounting valve-to-engine bolts using a wrench or ratchet and socket.

Disconnect the pipe from the bottom of the EGR valve using a wrench or adjustable wrench, being careful not to damage the connecting nut.

Lift the valve away from the engine compartment and remove the gasket.

Detach the EGR solenoid from the top of the valve, if your particular model comes equipped with one. Remove the four screws using a Phillips screwdriver.

Clean the EGR Valve

Remove carbon deposits from the bottom passage on the valve using a scratch awl.

Remove carbon deposits from the pipe and engine valve passages using the scratch awl.

Remove any gasket material from the bottom of the valve and engine-mounting base using a plastic scraper to avoid damage to the mating surfaces.

Install the EGR Valve

Attach the EGR solenoid to the top of the valve, if your particular model comes equipped with one.

Set the valve in place on the engine, along with a new gasket if necessary.

Start the two mounting valve-to-engine bolts by hand to avoid thread damage.

Start the pipe-to-valve nut by hand to avoid thread damage.

Tighten the two mounting bolts and the pipe nut.

Plug the vacuum hose or the valve sensor electrical connector.

Please login or register to post a reply.

Code Read Retrieval/Clear - Dodge Stratus
Code Read Retrieval/Clear Mercedes Benz
Code Read Retrieval/Clear Honda Civic
How to read codes Chevrolet Blazer
 Step by Step video GMC Yukon XL 2000-2006
Read Codes Like a Pro
How to gather codes Ford Explorer
Code Read Retrieval/Clear Mercedes-Benz C230