How much labor to replace the one oxygen sensor?

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  #1  
Old 11-07-10, 09:51 AM
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How much labor to replace the one oxygen sensor?

I have a 92' Ford Ranger with 2.9 V6 engine. How many hours labor would be required to replace the oxygen sensor? My make/model only has the one sensor at the y-pipe junction just forward of the catalytic converters.

It might be pretty difficult to do it myself with the tight working quarters, Mechanic can put it on lift and use special tools. The mechanic said he might have to disconnect part of the exhaust. Is this necessary?

Thanks,
Dave
 
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Old 11-07-10, 10:12 AM
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I changed mine in about 1/2 hour - no disconnect. Same engine, same Y exhaust, no lift.
 
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Old 11-07-10, 10:45 AM
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That's good to hear

Did you use that socket with the slot in it?

Counterclockwise to unscrew the sensor?
 
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Old 11-07-10, 11:57 AM
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(Question) How many hours labor would be required to replace the oxygen sensor?

In the worst case scenario it should take no longer than forty minutes

(Question) The mechanic said he might have to disconnect part of the exhaust. Is this necessary?

The mechanic is wrong. No disconnect is necessary.
Worst case scenario means that the O2 sensor is original, in which case anti seize compound was not used from the factory. If this is the case donít use any type of penetrating oils, fluids or chemicals. Heat up the pipe (not 02 sensor mounting base) around the O2 sensor with Mapp Gas until itís good and hot. Now using a slotted O2 sensor tool, remove the O2 sensor by turning it out(counterclockwise). You want to use mapp gas because, mapp burns much hotter than propane fuel, and the heat transference of mapp gas is far greater than propane. Apply anti seize compound to the threads of the new sensor before installation. This will assure much easier future removals.
 
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Old 11-07-10, 03:20 PM
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Very good. I already purchased the slotted socket tool.
 
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