Rough Idle & Poor gas milage 94 B3000 - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 01-19-2011
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Rough Idle & Poor gas milage 94 B3000

Hello I am new to the forum and could really use some help.

I have a 94 Mazda B3000 Automatic with 180,000 miles. Recently had a problem with error code 327 and fixed that with a new EGR sensor. Code went away but the truck idles very rough and gets 13 mpg. Also it smoothes out a bit when driving until I get into overdrive and the RPM goes below 2000 and it gets worse.

I cleaned the EGR valve and checked that it is opening at about 9 to 10 psi.

Can anybody shed some light or point me in a direction?

Thanks
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Old 01-24-2011
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This weekend I cleaned the MAP and didn't see any difference. This morning on the way to work the truck ran much smoother, not right but smoother. I still need to check all the vac hoses.
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