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No gas mileage at all. might get 6 miles to gallon. what to check?
1999 Ford Explorer

No gas mileage at all. might get 6 miles to gallon. what to check?

(1999 Ford Explorer)
Gas mileage as fell off, not what part to start with to maybe stop this situation.
1 answer & 1 comment
Popular Answer
on August 16, 2015
Safe to say the check engine light is on and it's not running right? (rough or weak) , hard to start? FIRST thing to check is PROPERLY scanning and watching LIVE data. NOT FREE 'Autozone' code reading!!! IF you must resort to guessing by code , then first , write down ALL DTCs present , then erase them and drive it till light (and code(s) return. Read code(s) as soon as possible after light returns. POST that code(s) and we can start with that.
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on August 18, 2015
o k. Thanks.
General Diagnosis
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on August 16, 2015
Safe to say the check engine light is on and it's not running right? (rough or weak) , hard to start? FIRST thing to check is PROPERLY scanning and watching LIVE data. NOT FREE 'Autozone' code reading!!! IF you must resort to guessing by code , then first , write down ALL DTCs present , then erase them and drive it till light (and code(s) return. Read code(s) as soon as possible after light returns. POST that code(s) and we can start with that.
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on August 18, 2015
o k. Thanks.

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