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Re: Poor Coupe Mileage

Did this drop in mileage happen suddenly after the tune up?  Or
gradually over time?  Possible causes are a lazy oxigen sensor, a
coolant temperature sensor going bad, a missadjusted mixture, or just
plain dirty contacts.  Sounds like whoever did the tune up didn't do a
complete job.

Luis Marques
'87 4kcsq

>    I am only getting 12 miles per gallon from my 1984 coupe GT.  This
>is after changin the oil (Valvoline Dura-Blend) and getting a tuneup.
>Does anybody have any ideas as to what could be the problem.  It seems
>to run fine other than that.