Bad EGR Valve?
Thread Starter
Melting Slicks
Joined: Jul 2013
Posts: 2,695
Likes: 2
From: Georgia
Bad EGR Valve?
Hey Y'all. My SES light came on and I retrieved a H32 code. It looks like a vacuum or EGR issue. I looked at all of my vacuum lines and connections and I don't see any visible cracks or disconnected lines. They all appear to be in great shape. Is it worth it to just replace a $35 EGR valve before taking it into the mechanic?
When the SES light came on I didn't notice any change in performance, but I only drove it for about a mile afterward.
Any other ideas for tracking down a potential vacuum issue?
Thanks!
When the SES light came on I didn't notice any change in performance, but I only drove it for about a mile afterward.
Any other ideas for tracking down a potential vacuum issue?
Thanks!
Safety Car
Joined: Oct 2007
Posts: 4,426
Likes: 229
From: Pennsylvania
Remove the vacuum line going into the EGR valve. Take a small drill bit and insert and turn it by hand into the EGR valve where the vacuum line attaches to the EGR valve. As you turn it into the opening, you may find it stops spinning. That means the vacuum line into the EGR is clogged up. Spin the drill bit by hand while applying pressure to push it into the opening. Once it clears the clog out, the drill bit will go far into the EGR valve. Remove the drill bit and install the vacuum line back onto the EGR valve. Disconnect the battery for a few minutes and then reconnect it. That should turn off the Check engine light. Problem may be solved!
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
What year?
Could be an EGR temp switch too.
When does the code appear?
Does it go away after shutting down the engine?
Could be an EGR temp switch too.
When does the code appear?
Does it go away after shutting down the engine?
Burning Brakes
Joined: Jun 2005
Posts: 1,189
Likes: 13
From: Wallingford Vermont
I've had to replace a couple of EGR valves over the years. Both failed due to the metal diaphragm cracking ( I believe). Semi easily tested with a Mityvac (hand pump) and an inspection mirror. Make sure you get the correct valve part as there a many different types (Neg / Pos) (beware Universal EGRs).
Thread Starter
Melting Slicks
Joined: Jul 2013
Posts: 2,695
Likes: 2
From: Georgia
Remove the vacuum line going into the EGR valve. Take a small drill bit and insert and turn it by hand into the EGR valve where the vacuum line attaches to the EGR valve. As you turn it into the opening, you may find it stops spinning. That means the vacuum line into the EGR is clogged up. Spin the drill bit by hand while applying pressure to push it into the opening. Once it clears the clog out, the drill bit will go far into the EGR valve. Remove the drill bit and install the vacuum line back onto the EGR valve. Disconnect the battery for a few minutes and then reconnect it. That should turn off the Check engine light. Problem may be solved!
Thread Starter
Melting Slicks
Joined: Jul 2013
Posts: 2,695
Likes: 2
From: Georgia
THanks for your reply.
The code first appeared while cruising down the street at about 40 mph.
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