Question about 1983 Ford F150

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My inline 6 is getting very bad had mileage. I have no idea what could b the problem.

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Give it a tune up. Ford's run tough, but they still need a little love now and again. New fuel filters, new air filter, new spark plugs and wires, new injectors, new timing and accessory belts if they are really worn. An oil change and transmission fluid and filter change will help as well.

Also, check that your tires are full of air. Flat tires, even a little bit, can cause a drag on the engine and give you bad mpg. Carrying a load can also cause drag, so try to keep the trunk free of unnecessary items.

Posted on Sep 02, 2010

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Loss of power, hesitation, bad gas mileage


Clean the MAF sensor. Could also need a tune up, plugs, wires, cap, rotor, fuel filter. Could also have a stopped up catalic converter that needs to be replaced.

Dec 01, 2013 | 1989 Nissan Stanza

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My 98 Rodeo is only getting about 6 miles to the gallon? Any ideas as to why?


at 6 miles to the gallon the engine will not be running properly
if it is running well then you have a fuel leak in a hose somewhere or your method of calculating the consumption is flawed
to get a consumption reading , fill the tank completely , take a note of the mileage and use the car normally you have to refuel again
fill the tank completely and take the mileage again
now deduct the first mileage from the second to get distance driven and use the second fill amount to get the fuel consumption for the distance covered

Jun 17, 2017 | Isuzu Rodeo Cars & Trucks

1 Answer

What is the difference between the V4 and V6 engine? Which kind of engine has better fuel consumption.


The letter is the engine configuration, the number is the number of cylinders.

V is a V shaped engine.
W is basically two Vs put together
I is inline
F or H is a flat/horizontal (used by Porsche and Subaru).

There are currently no V4 engines in cars. The Inline configuration greatly increases power over the V configuration, so for tiny engines Inlines are used.

V8= 8 cylinders... lot of power..lousy gas mileage
V6= 6 cylinders..not as much power as a V8 but better gas mileage..
V4= 4 cylinders...not as much power as a V8 or V6..but gets ALOT better mileage..

Hope this a little help for you...

May 17, 2010 | Hyundai Motor 2002 Sonata

1 Answer

I have a 2001 Jeep Grand Cherokee - Limited My


That's a generic O2 sensor circuit overvoltage warning. Did they find any additional codes? Also, did they clear the code for you? Your car is an OBD2-emissions car, meaning you'll have an O2 sensor before and after each catalytic converter. Is your engine the V8 or the inline 6? If it's the V8, you'll probably have four (although it could be two or three) O2 sensors. If it's the inline 6, you likely only have two. I'm asking about additional codes because that one doesn't help narrow down which sensor is bad. Have you noticed your gas mileage dropping at all? Or a buildup of black carbon soot in the tailpipes? Maybe less power than usual? If so, it's probably a primary (pre-cat) O2 sensor. Those are the ones that determine how much fuel the engine will be fed. If you don't have any discernable difference at all, it's probably a secondary sensor (post-cat). The issue I have is, either of those should throw at least one additional code (either to indicate which sensor is going bad, or in the case of a secondary sensor, you'll usually see a "catalytic converter below threshold" or similar code, since the secondary sensors are used by the computer to see how well the cats are working).

Any additional codes in there, or symptoms you can describe?

Nov 11, 2009 | 2001 Jeep Grand Cherokee

1 Answer

My 1996 F150 with the 300ci, 4.9liter inline 6 with auto trasns.and overdrive gets terrible gas mileage.12-13 mpg. Doesn't trip any trouble codes, ox sensors all tested good. Had the truck 3 years now....


your milage won't get much better than around 20 mpg at the best of times but you may have a partially plugged resignater or catalytic converter.you can check these with a digital thermomiter by checking temps. in and out of these,they should be close to the same.

Sep 24, 2009 | 1996 Ford F150 Regular Cab

1 Answer

Rough Idle, Running rich.


Sounds like your automatic choke is giving you problems. Check to make sure the choke is operating correctly. If it ins not backing off as the engine gets to operating temp it will cause a rich condition and excessive black smoke out the tailpipe and extremely poor fuel mileage.

Feb 18, 2009 | 1984 Ford F 150

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