98 Ranger - Possible Vacuum Issue
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98 Ranger - Possible Vacuum Issue
Hi
My small 4 cyl 2.4L manual tran. Ranger began running very rough quickly. I may have lost vacuum somewhere? The A/C no longer works and hot air is always on flow w/o fan. When I start up cold it races, then drops to a oscillating low idle when parked and no foot pedal. It will race again when coasting and no foot pedal.
On initial look I can't find any broken lines and can't feel any exhaust gasket leak. Suggestions?
The OBD codes are 401 (been on for months), new codes are 171 lean fuel, and 500 speed sensor.
Many Thanks
Andres
My small 4 cyl 2.4L manual tran. Ranger began running very rough quickly. I may have lost vacuum somewhere? The A/C no longer works and hot air is always on flow w/o fan. When I start up cold it races, then drops to a oscillating low idle when parked and no foot pedal. It will race again when coasting and no foot pedal.
On initial look I can't find any broken lines and can't feel any exhaust gasket leak. Suggestions?
The OBD codes are 401 (been on for months), new codes are 171 lean fuel, and 500 speed sensor.
Many Thanks
Andres
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