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Hi everyone,
My 2004 AWD Endeavor has 70K miles on it. I just had timing belt and water pump replaced as preventative. The mechanic suggested that I change the oxygen sensors. He told me he would do them all for one hour labor.
A few questions:
1. How many are there? 2 or 4 2. Is it easy enough to replace them myself (and if so how) or for 1 hour labor ($75) just let him do it? 3. Should I replace them all or wait until the onboard computer tells me to replace? 4. Should I go OEM or is after market fine on these parts (any suggestions?)?
Please advise.
Thanks!
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