Hmm... - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 05-04-2009
b3kbruiser's Avatar
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Hmm...

Let's say you have a truck that may be idling rough because the EGR valve is stuck open, but you're not sure. To test and see if it is the EGR valve, could you just put a nice thick vicegrip on the line going from the valve to the intake and clamp it shut (assuming it's rubber), and see if it runs better? That way exhaust doesn't get into the air intake and cause the engine to stumble. Or would it be stumbling because it's creating a vacuum leak by keeping the valve open?

Anyway, I could very easily be wrong, I'm just musing.
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Old 05-04-2009
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Couldn't hurt to try. Have you checked the IAC?
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Old 05-05-2009
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just replace the DPFE sensor and the EGR and it will go away. $90 for EGR $ 45 for DPFE sensor. had the same prob
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Old 05-05-2009
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This might help some, it helped me solve a similar problem.

http://www.focushacks.com/index.php?modid=80
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