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I have a 1998 ford f150 and my check engine light is on. i got the heads replaced like 5000 miles ago so i dont think its that again but i dont no. could the o2 sensors be bad would that make the check engine light turn on?
thanks for any help,tyler
There are hundres of possible codes which may have been caused by any oneof dozens of components.
Get the codes read. Without them, there's little hope of guessing right the first time. WRITE DOWN THE CODES! Come back here and poke around with the SEARCH tool to see if there are previous discussions. Ask questions if you get stuck or need more advice.