Horible gas mileage

whyxitx · December 15th, 2011, 04:57 PM

just got 35 to a quarter of a tank... fuck my life. lol. Something is wrong.

02GT89 · December 15th, 2011, 05:09 PM

I noticed it when I had a v6 it got bad gas mileage. that when I went to my current vehicle stock I got 20 in the city and 25-28 highway well the 28 was going to Texas.but usually 25-27

Now with the mods I get 16-17 highway 18-19 on a good day
And 14-15 city

Sent from my Autoguide iPhone app

whyxitx · December 15th, 2011, 05:16 PM

mines a bone stock v6... i don't (usually) beat the shit out of it. I removed the air silencer (not that i actually thought it'd do anything) and got new plugs ~ 7k miles ago. Could it be my driver side exhaust manifold is leaking because of a bad gasket that i'm getting such crappy mileage?

MustangV6Man? · December 15th, 2011, 05:26 PM

Did you check vacuum lines? These can definitely cause a drop in some fuel economy.

whyxitx · December 15th, 2011, 05:27 PM

i have not.

xtreme 2 · December 15th, 2011, 05:49 PM

yes a leaking exhaust manifold will defiintely cause it. Get that fixed ASAP. Fumes leaking out of the manifold before getting to the O2s will make the car think your A/F is off and it will dump more fuel...

whyxitx · December 15th, 2011, 05:57 PM

i would fix it if i had sockets that actually fit to where i could get to the exhaust manifold... i have no tools to do anything at my house.

bigjohnstud4200 · December 15th, 2011, 10:32 PM

Originally Posted by whyxitx

i would fix it if i had sockets that actually fit to where i could get to the exhaust manifold... i have no tools to do anything at my house.

I don't know about your area, but here in Phoenix there at about 5 or 6 DIY garages where you can rent lift and tool (including air) for $20 or less an hour. Look around in your area.

whyxitx · December 15th, 2011, 10:48 PM

Originally Posted by bigjohnstud4200

I don't know about your area, but here in Phoenix there at about 5 or 6 DIY garages where you can rent lift and tool (including air) for $20 or less an hour. Look around in your area.

my brother-in-law has tools, but he's on the other side of town and i can't make it over there at the moment.

Green_6er · December 15th, 2011, 10:55 PM

come to my house. we will get that shit off in a couple of minutes. getting the new one back in on the other hand, will take FUCKING HOURS! but since i already know how to do it, we can have it back in in about 20 mins.

whyxitx · December 15th, 2011, 10:59 PM

drivers side is easy... passenger side is a bitch.

xtreme 2 · December 16th, 2011, 08:39 AM

Passenger side is easy... of course I no longer have an EGR...

All you need is a 14mm ratcheting wrench, a 14mm ratchet/socket, and a 12" extension.

Andy001 · December 16th, 2011, 09:24 PM

Fuel mileage will typically drop while running winter-blend fuel.

Fuel mileage will typically drop due to a failing O2 sensor long before it will trigger a CEL.

A article says driving on hilly or mountainous terrain or on unpaved roads can reduce fuel economy. Expect up to a 10% drop in mpg in heavy rains, and 1-2% for every 10 degree Fahrenheit drop in temperature.car dvr

mk1993 · December 16th, 2011, 11:58 PM

thank you guys, i forgot to mention that, my drivers side manifold is cracked(has a small weld on it for temp.) and i have a set of LT's in my room waiting to be put on, maybe thats my problem!

December 15th, 2011, 05:09 PM	#42
02GT89 eating 1 ricer at a time 2002 mustang GT not sure only ran on the streets so far! Join Date: Feb 2010 Location: Missouri Posts: 3,444 iTrader: 3 reviews	I noticed it when I had a v6 it got bad gas mileage. that when I went to my current vehicle stock I got 20 in the city and 25-28 highway well the 28 was going to Texas.but usually 25-27 Now with the mods I get 16-17 highway 18-19 on a good day And 14-15 city Sent from my Autoguide iPhone app __________________ Power in the hands of a few Buy your coffee from 02gt89 I guarantee better than starbucks click here

December 15th, 2011, 05:49 PM	#46
xtreme 2 Hardcore Enthusiast 2001 v6 premium Join Date: Nov 2008 Location: Tulsa, OK Posts: 1,340 Blog Entries: 1 iTrader: 0 reviews	yes a leaking exhaust manifold will defiintely cause it. Get that fixed ASAP. Fumes leaking out of the manifold before getting to the O2s will make the car think your A/F is off and it will dump more fuel... __________________ Screw it, coming to play with the big boys... 5.4L Vortech COMING SOON!

December 16th, 2011, 08:39 AM	#52
xtreme 2 Hardcore Enthusiast 2001 v6 premium Join Date: Nov 2008 Location: Tulsa, OK Posts: 1,340 Blog Entries: 1 iTrader: 0 reviews	Passenger side is easy... of course I no longer have an EGR... All you need is a 14mm ratcheting wrench, a 14mm ratchet/socket, and a 12" extension. __________________ Screw it, coming to play with the big boys... 5.4L Vortech COMING SOON!

December 16th, 2011, 11:58 PM	#54
mk1993 Enthusiast 01 true blue GT Join Date: Sep 2010 Location: Cville,Indiana Posts: 862 iTrader: 0 reviews	thank you guys, i forgot to mention that, my drivers side manifold is cracked(has a small weld on it for temp.) and i have a set of LT's in my room waiting to be put on, maybe thats my problem! __________________ 00' V6-basics, mostly visual, missed! SOLD 01' GT True blue, bbk CAI, slp lm1 catback, tinted tails, HIDs, tokio blues, chin spoiler, clear fogs, 18x9/10 chrome saleens wrapped in nitto 555's, MMD fuel door, more to come

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December 15th, 2011, 05:26 PM	#44
MustangV6Man? Enthusiast Join Date: May 2010 Location: USA Posts: 664 iTrader: 1 reviews	Did you check vacuum lines? These can definitely cause a drop in some fuel economy.

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