302f150

lol, not likely. you said there is a broken vacuum line.....did you fix that? a major vacuum leak will cause problems. the thing you are talking about sounds like the purge solenoid for you rEVAP system. This normally collects fumes from the gas tank, and then sucks them up into the engine periofically. Make sure there is ABSOLUTELY NO liquid gas in that canister, if there is, then something is messed up and you are leaking gas from places gas shouldn't be leaking. I'm getting 21mpg with a 5speed, no EGR, no EVAP.

xfasteddiex

ys i fixed all the vaccume lines & i changed the plugs today it had the bosch platnum +2 pugs but when i pull the plug off the maf the idle dosent change

mjr46

perform a koeo/koer test to see if any probs/ codes are present that'll clue you in on a possible prob

xfasteddiex

did the sea foam first tank full all vaccume leaks fixed maf sensor was bad so was 02 sensor on bank 1 (passenger side )i have 2 friends that are mechanics for local ford dealer they were finaly able to hook up car to computer yesterday i got every thing fixed they also told me i should pull egr & block it off & pull smog pump .ill post more on how mileage turns out next week hopefully my next tank will last that long LOL

Texas5.0

21 MPG.... I wish. I am no where near that. I am excited if I hit 16... normally around 14 and thats all city driving.

Jfsram

Excellent advice. Seriously, it's amazing how many people fail to realize mileage threads mean nothing without this information.

You can even figure this out without a gas gauge.

To carry it a step further you can first confirm your odometer is reading accurately. Compare it to mile markers OR drive with a GPS reading distance.

5L mileage in the city should be in the teens. Straight highway will be about 20.

xfasteddiex

drove to work & back lastnight& checked mileage 16.27 getting better !!!!!egr is unhooked i need to jumper the plug for the sensor i hear that will help a bit too .

NYMustang50

I was getting 21 22 highway on mine and like 12-14 city. It wasn't too bad. But I would just check those vacuum line and clean the mass air and throttle bodies see if the air filter is clean also i know its weird but we get this at my job check the tire pressure lol i know its weird but just check it anyway if it ain't set right you wont get good gas mileage and it will help allot some times. You could have a clogged cat on the car as well. Sea foam works pretty good try running that through the car i prefer the carbon clean machines at my shop i work at but most likely you wont have one in your garage. lol

xfasteddiex

i think i found the final piece of the puzzle a vac hose goes from intace to a cprv valve in to a canister under air cleaner then to fuel tank there are two large nipples on top of canister that draw a vaccume on them i read some where yhey shouls have caps on them . now my question is are the caps vent caps or plugcaps do i need two plug these nipples or plug them ???
thanks fast eddie

foxGT93

im only getting about 200 miles on a full tank of gas