Code 33 and 67
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Senior User
Joined: Oct 2004
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Code 33 and 67
'90 F250
I pulled codes and got: 33 - EGR valve not opening, where do I start?
I also got 67, which is neutral drive switch is that also known as "neutral safety switch" located on the tranny?
I pulled codes and got: 33 - EGR valve not opening, where do I start?
I also got 67, which is neutral drive switch is that also known as "neutral safety switch" located on the tranny?
Tuned
Joined: Jun 2006
Posts: 420
Likes: 3
its egr not closing fully (for trucks) and i think on cars its egr not operating properly. take off your egr and try to clean all the carbon junk out of the valve seat area. re-install, clear codes, and take your truck for a quick burn with some wot passes (try to blow all the carbon threw). then check your codes again.
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Senior User
Joined: Oct 2004
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I looked carefully at the "H" manual (all the codes/sensor stuff) and it basically said it could be several things, the EGR valve sensor, the EVP sensor and what you described. It also talked about testing with a vacuum tool, which I have no idea how to use.
How often does the valve and the EVP sensor go bad, anyway?
It has 95K miles on it.
How often does the valve and the EVP sensor go bad, anyway?
It has 95K miles on it.
Last edited by apropos; Jun 18, 2006 at 12:36 AM.
