Lounge For casual talk about things unrelated to General Motors. In other words, off-topic stuff. And anything else that does not fit Section Description.

Horrible fuel economy.

Old Aug 4, 2005 | 03:30 PM
  #1  
rjolly87's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Jun 2003
Posts: 7,270
Likes: 465
From: Las Cruces, NM
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default Horrible fuel economy.

i changed the fuel filter on the taurus in the beginning of june. the fuel mileage went from 17mpg, gradually dropping to what it is now, 11mpg. jiffy lube told us the injector seals were bad <would explain why gas was in the oil> so we replaced them. gas mileage remains the same. what else would cause this you guys think? and no, getting a bonneville is not an option right now, so dont bother. infact, dont even crap on fords in this thread. i need to fix the problem, not get rid of it. got any ideas?

no idea is stupid at this point <aside from the above mentioned request>
Reply
Old Aug 4, 2005 | 03:55 PM
  #2  
ComfyCar's Avatar
Senior Member
Posts like a Northstar
 
Joined: Apr 2005
Posts: 778
Likes: 0
ComfyCar is on a distinguished road
Default

Try one of thee guys additives

http://www.berrymanproducts.com/

Worked for me.

Supposedly this stuff is strong enough to melt a styrofoam cup.
Reply
Old Aug 4, 2005 | 03:58 PM
  #3  
rjolly87's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Jun 2003
Posts: 7,270
Likes: 465
From: Las Cruces, NM
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

well, we did put cleaner stuff in it after the fuel filter was put in <generic stuff>
Reply
Old Aug 4, 2005 | 04:03 PM
  #4  
ComfyCar's Avatar
Senior Member
Posts like a Northstar
 
Joined: Apr 2005
Posts: 778
Likes: 0
ComfyCar is on a distinguished road
Default

Generic stuff is pretty crappy.

The Berryman stuff is anywhere from $3-$7, so might as well try it.
Reply
Old Aug 4, 2005 | 04:13 PM
  #5  
willwren's Avatar
Junior Member
Posts like a Ricer Type-R
 
Joined: Aug 2002
Posts: 11
Likes: 13
willwren is on a distinguished road
Default Re: Horrible fuel economy.

Originally Posted by rjolly87
i changed the fuel filter on the taurus in the beginning of june. the fuel mileage went from 17mpg, gradually dropping to what it is now, 11mpg. jiffy lube told us the injector seals were bad <would explain why gas was in the oil> so we replaced them. gas mileage remains the same. what else would cause this you guys think? and no, getting a bonneville is not an option right now, so dont bother. infact, dont even crap on fords in this thread. i need to fix the problem, not get rid of it. got any ideas?

no idea is stupid at this point <aside from the above mentioned request>
Fuel filter will have no effect on MPG, just on performance.
Leaky injector seals can't leak fuel into the oil. They leak to the OUTSIDE.

Try for a bad O2, bad plug wire or plug or two or 3. Inspect your plugs, and think about the possibility of a TC or clutch slipping.
Reply
Old Aug 4, 2005 | 04:17 PM
  #6  
rjolly87's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Jun 2003
Posts: 7,270
Likes: 465
From: Las Cruces, NM
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

but power is as good as it has been since the day we got it, maybe even up a touch.

replaced the wires a few months ago
replace the plugs a month later <bosch platinums> along with cap, rotor, etc

if the tc or clutch was slipping, wouldnt i loose power? the car drives as good as if not slightly better than the day we got it.
Reply
Old Aug 4, 2005 | 04:19 PM
  #7  
willwren's Avatar
Junior Member
Posts like a Ricer Type-R
 
Joined: Aug 2002
Posts: 11
Likes: 13
willwren is on a distinguished road
Default

Originally Posted by rjolly87
but power is as good as it has been since the day we got it, maybe even up a touch.

replaced the wires a few months ago
replace the plugs a month later <bosch platinums> along with cap, rotor, etc

if the tc or clutch was slipping, wouldnt i loose power? the car drives as good as if not slightly better than the day we got it.
If you're running rich, the car can still run with good power. Inspect your plugs.

You may also want to consider looking for fuel leaks, but do it at least while idling. Check your fuel pressure regulator in particular.
Reply
Old Aug 4, 2005 | 04:23 PM
  #8  
rjolly87's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Jun 2003
Posts: 7,270
Likes: 465
From: Las Cruces, NM
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

No fuel leaks have been discovered, and several people have looked too.

i will try and check the FPR, that does sound interesting.

But wouldnt this big of a drop be in the it smokes category though?
Reply
Old Aug 4, 2005 | 06:16 PM
  #9  
Logan's Avatar
Senior Member
Certified GM nut
 
Joined: Feb 2004
Posts: 2,246
Likes: 0
From: MI
Logan is on a distinguished road
Default

Curious. I replaced my fuel filter, and my gas milage is looking bad too. I haven't filled up yet, but I am just below half a tank now and I haven't gone 150 miles yet But we all know how accurate the fuel gauge is. But usually I get 175-200 right around the half tank mark.
Reply
Old Aug 4, 2005 | 10:42 PM
  #10  
BonneMeMN's Avatar
Senior Member
Certified Car Nut
 
Joined: Jun 2003
Posts: 15,928
Likes: 1
BonneMeMN is on a distinguished road
Default

What'* the 02 like?
Reply


All times are GMT -4. The time now is 08:23 AM.