EGR problem
Thread Starter
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Freshman User
Joined: Jan 2006
Posts: 31
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From: Texas
EGR problem
I have a 93 f150 302 engine
I have a EZ Scan 3000 AutoXray and when I did a scan with the engine running, it shows a code 33 and says that the EGR valve is closed/erratic or has insufficient flow, I have checked and don't have any vacuum leaks, any advice would be appreciated.
I have a EZ Scan 3000 AutoXray and when I did a scan with the engine running, it shows a code 33 and says that the EGR valve is closed/erratic or has insufficient flow, I have checked and don't have any vacuum leaks, any advice would be appreciated.
Senior User
Joined: Aug 2007
Posts: 364
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From: Ca
Unless you actually took your intake plenum off and looked at the vacuum lines back there, i doubt you can guarantee no vacuum leaks. The plastic lines get brittle over time and can crack easily.
Try what K suggested, but don't rule out a vacuum leak yet.
Try what K suggested, but don't rule out a vacuum leak yet.
Thread Starter
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Freshman User
Joined: Jan 2006
Posts: 31
Likes: 0
From: Texas
I did what K said to do , I took the EGR off and used a piece of wood and tapped the plunger, it was stuck and when I tapped it it broke loose, so I cleaned it real good, re-installed it and it is working great, I did another scan and it came up with no codes this time
Thanks for the help
Thanks for the help
