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  #1  
Old 10-05-2003, 04:15 AM
Cygnus Cygnus is offline
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Question 4.2 L V6 Gas Milage

Hello, i have just recently purchased a 2002 ford F150 4x4 sport w/ a 4 speed + overdrive manual transmission. it was used, and had 2600 miles on it. I was wondering what the average listed gas milage is for these trucks. i drive to work and back every day, a 60 mile round trip. i drive 70 mph the entire way. i average 10 mpg on the highway and in the city. i have the bed cover on correctly and am not too heavy on the accelerator. i purchased the 4.2 L because i thought that i would get fairly good milage, and from what i have read most people do. as far as i know, everything is stock. at 70Mph, i turn about 2300 Rpms. why is the gas milage so poor and what can i do to fix this problem.
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Old 10-05-2003, 10:04 AM
true4.2 true4.2 is offline
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Well, I'd say mine averages around 14 - 16 everywhere. I have a 2WD though. A 4x4 is going to get a little worse mileage I'd think, but 10 seems a bit low. As far as fixing it, you got me.
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Old 10-07-2003, 02:14 PM
Thrasher1 Thrasher1 is offline
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Wow ! 10 mpg is not right. I have a 4.2 / 5 speed / 2wd - all stock and get 22 mpg out on the highway and 19 around town.

I'd definitly get it checked over from the dealer since it is still under warranty.
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Old 10-07-2003, 08:12 PM
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fordinlinesix fordinlinesix is offline
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10 is pretty bad, even my 347 stroker gets better gas mileage than that =). My 01 4.2 manual and 3.55 gears gets 20 consistantly. Try cleaning your MAF sensor wires, should pick up about 5 mpg at least if that's the problem. I once had a '96 Cougar that got 14 mpg, replaced the MAF sensor(before I knew you could clean the wires) and it got 24 mpg all the time, lol, sometimes it's just a simple little problem.
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Old 10-11-2003, 04:28 PM
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James's f_1_fiddy01 James's f_1_fiddy01 is offline
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mine gets crappy mileage too dont feel bad, my boy has the 4.6L 8cyl and gets better mileage than me with the 5-speed v-sicks...grrrr im pissed that i got this pile now
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Old 10-11-2003, 11:10 PM
fishon49er fishon49er is offline
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gas milage

well,
I have a 1998 f-150 2wd. I get about 14 miles to the gal. I am very heavy on the gas, and do alot of highway miles. I was hoping for better gas milage when I bought mine; if I had it to do over I would have gone with an 8cyl.
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Old 10-12-2003, 02:03 PM
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amen Rick. hindsight is 20/20
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Old 10-12-2003, 07:38 PM
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I know how to fix your problem. I have a 99 xl 4x4 4.2, mine was hard on fuel first when I got it, the problem was a bad mass air flow sensor, the one in your air intake, looks like a needle, positioned vertically in the tube. These sometimes malfunction and you will know it, your mileage goes down considerably. ford taurus, also has this as a common problem.
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Old 10-13-2003, 07:39 PM
Ken Harvest Ken Harvest is offline
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Question 97 4.2 2wd 5sp bad milage

Now there's a good tip. "check the MAF" I have also been dis'ed by my poor Milage. Bought this truck with 30,000 mi on it and extected 17 plus with stock tires and 3:55 rear. Best yet is 15.5 with hwy/fwy 30 miles ea way. Put in new Platium 2 plugs and an AirRaid air filter better power but milage unchanged. ok a little heavy footed.
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Old 10-13-2003, 07:40 PM
Ken Harvest Ken Harvest is offline
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Question 97 4.2 2wd 5sp bad milage

Now there's a good tip. "check the MAF" I have also been dis'ed by my poor Milage. Bought this truck with 30,000 mi on it and extected 17 plus with stock tires and 3:55 rear. Best yet is 15.5 with hwy/fwy 30 miles ea way. Put in new Platium 2 plugs and an AirRaid air filter better power but milage unchanged. ok a little heavy footed.
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Old 10-14-2003, 08:11 AM
Jon0807 Jon0807 is offline
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I just got a 2001 2wd and on my first tank I got about 12mpg. I admit I got on the gas a few times to test the power and I live in some hills. But 12 seemed a bit low to me since I we expecting 18city/20hwy.
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Old 10-29-2003, 03:34 PM
pmorello pmorello is offline
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mpg 4.2

like many others I too opted for the 4.2 thinking the mpg would be better than the V8.. not soo. I cant get any better than 14 to 15.5 new plugs,new wires and a k&n filter did not help make a difference either. I plan to try new cats and muffler next. sucks spending all this money just to try and save a few bucks a month on mileage.. oh well its only money...
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Old 10-29-2003, 04:18 PM
horizonhuskies horizonhuskies is offline
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Thats super crazy...you can tell from my mods I have spent a little bit, but im right at 18 street, 20-21 highway
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Old 10-29-2003, 04:32 PM
damon 98f150 damon 98f150 is offline
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i get crap for milage because mine foot is always into pretty hard!!!
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Old 10-30-2003, 06:04 AM
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I usually get 18-19 around town and 20-21 on the highway.
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Old 10-30-2003, 06:04 AM
 
 
 
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