Car Questions
RepairPal is your advocate for car care advice and guidance

Bad gas mileage

(1990 Ford Ranger)
in Anchorage, AK on February 11, 2011
i have a ford 1990 ranger with a 4.0l V6 engine an ive put in new injectors,spark plugs,air filter,tire pressure,sensore near the air filter
Displaying 2 answers & 7 comments
Popular Answer
on February 12, 2011
What is "bad" gas mileage for you, in your opinion?
Sign in to reply
on February 12, 2011
Good point Dave. We don't know what engine it has. The poster needs to verify what exactly is the MPG. 18 to19 is probably is the best they will see.
on February 12, 2011
first of all if you read the question dave an backyard you would have seen i wrote its a 4.0l V6 engine.and its getting like 10 miles to a gallon. thank you for reading all i wrote so carefully.
on February 12, 2011
Please read my Answer #2: you will not it does not ask which engine, since you stated that in the question. I was only attempting to assess what your interpretation of "bad gas mileage" is.

Three more questions, please -- What transmission do you have (automatic or manual), is it 4x2 or 4x4, and are the tires the stock size?
on February 12, 2011
yes it has a automatic transmission and its 4x4,i believe im using stock tires.and i found that air filter box that the mechanic replaced has a break in it.which i can see a small part of the air filter. which im not to happy with right at the this very moment its getting roughly 8 to 9 miles a gallon.sorry if i didnt read the question right an i do apologize im just very frustrated.
on February 12, 2011
No worries; we're here to help; mistakes happen regardless.

The air box leak is a HUGE issue, as you no doubt must now be aware. Sucking all that air will cause the engine to require more fuel to keep running. The fuel pump will literally keep dumping fuel to keep the engine running with all that air.

Fix that first, then re-evaluate the mileage...
on February 12, 2011
ok thank you very much and ill get back to you
on February 17, 2011
well fixed the problem and its getting 2.5 miles better a gallon but still is getting very poor mileage.its only getting like 11 miles a gallon. can a catalytic converter cause it to get mileage like that.
on February 11, 2011
Sounds like you have spent alot of money without verifying scan data info to look at the input sensors and output sensors. If you have more money to shoot at the truck try a upstream O2 sensor.
Sign in to reply
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
2016 elantra limited - car was running so quietly you couldn't tell it was turned on. hyundai dealership did 45k mil...
Bad gas mileage strains to pickup speed light smell (like aluminum burning) check engine light constantly on cod...
Didn't find what you were looking for?