5.9L starving, dies intermittently
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zman... why did you say to unscrew the front 02 sensor and see what it does? the reason i ask is my truck does a similar thing where i will just be driving along and then i lose power and just watch my rpm drop even if i stomp on the gas. I checked the codes and it said i need a new 02 sensor, would this (most likely) fix the problem? when i checked it, it was sending out eratic voltages.
#17
zman... why did you say to unscrew the front 02 sensor and see what it does? the reason i ask is my truck does a similar thing where i will just be driving along and then i lose power and just watch my rpm drop even if i stomp on the gas. I checked the codes and it said i need a new 02 sensor, would this (most likely) fix the problem? when i checked it, it was sending out eratic voltages.
zman said to unscrew it because when the catalytic converter gets plugged up the truck will loose rpms and feel like its stalling along with random cylinder misfires. unplugging the sensor acts as a temporary pressure relief to let you know if it is the cat that is causing your symptoms.
#18
zman... why did you say to unscrew the front 02 sensor and see what it does? the reason i ask is my truck does a similar thing where i will just be driving along and then i lose power and just watch my rpm drop even if i stomp on the gas. I checked the codes and it said i need a new 02 sensor, would this (most likely) fix the problem? when i checked it, it was sending out eratic voltages.
Sherriff is right, that is the reason I said to unscrew it.