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oxygen sensor heater cause of car not starting?


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The check engine light has been on for a while but the mechanic said it was not a priority. Tonight, in 10 degree weather my 2003 Forester decided not to start. Could there be a connection? I had to leave it in the parking lot and will have to have it towed to a shop tomorrow.

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Well, it's the dreaded intermittent start problem. Started right up after sitting in below zero weather all night. Drove it to the shop and they will see if it's anything obvious. Possible connection problem somewhere. The headlights didn't come on last night when it wouldn't start, but the interior lights did.

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Don't think a faulty oxygen sensor can cause a no start problem. Sounds like an electrical problem, since head lights didn't come on, unless you cranked the motor until the battery was dead, or near dead.

 

How long since spark plugs been replaced??

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I think it was right after I bought the car in late 2010. Haven't put a lot of miles on it since then as I work about 8 blocks from home! Not sure if plugs are a time thing or a miles thing.

Edited by terryb52
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I think it was right after I bought the car in late 2010. Haven't put a lot of miles on it since then as I work about 8 blocks from home! Not sure if plugs are a time thing or a miles thing.

spark plugs are really a miles thing. If they are not used much, then there is not much wear.

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