Truck running rich

Asked by Jun 23, 2016 at 07:12 PM about the 1979 Ford Courier

Question type: Maintenance & Repair

I have a  79 courier and I have been going
through gas like crazy....  I used to get  
around 25-30mpgs. Now I'm getting like 10-
15..  I think it might b running a little rich
too.. what would be the cause of that ?

1 Answer


Mazda truck and engine.. 02 sensor could be a HUGH cause when was the last replacement?

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