4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

bad mileage????!!!??

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Old 03-26-2006, 11:53 PM
  #21  
monkeydude3
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Default RE: bad mileage????!!!??

bingo. Maybe this sudden drop in MPG can be related to a sudden surge of WOT urges?


On my car even being N/A when I bury the pedal more my gas goes away very quick, I can't imagine how fast it will go with a blower


George
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Old 03-27-2006, 12:08 AM
  #22  
nanaki
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Default RE: bad mileage????!!!??

up to 24mpg on the highway, about 18mpg city. 04 GT with 10psi vortech. that includes romping on it once in awhile.
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Old 03-27-2006, 12:17 AM
  #23  
racer02GTstang
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Default RE: bad mileage????!!!??


ORIGINAL: nanaki

up to 24mpg on the highway, about 18mpg city. 04 GT with 10psi vortech. that includes romping on it once in awhile.

oh... ive got a spec stage 2 clutch in there and its only got 5k miles on it too....



code, im still running the NGK TR6 plugs gapped at .35. and ive got 42lb injectors with the lightning maf.


ive only got on it like 3 times for the whole tank of gas so i dont think that could be it... a tank of gas only lasts me 5 days of driving.
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Old 03-27-2006, 12:34 AM
  #24  
Zoie_daGT
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Default RE: bad mileage????!!!??

I would check the plugs and the tune myself. That would be my first guess on the loss of mileage.
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Old 03-27-2006, 12:36 AM
  #25  
code3GT
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Default RE: bad mileage????!!!??


ORIGINAL: racer02GTstang


ORIGINAL: nanaki

up to 24mpg on the highway, about 18mpg city. 04 GT with 10psi vortech. that includes romping on it once in awhile.

oh... ive got a spec stage 2 clutch in there and its only got 5k miles on it too....



code, im still running the NGK TR6 plugs gapped at .35. and ive got 42lb injectors with the lightning maf.


ive only got on it like 3 times for the whole tank of gas so i dont think that could be it... a tank of gas only lasts me 5 days of driving.
Change to NGK BR7EF's gapped at .038
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Old 03-27-2006, 01:55 AM
  #26  
sdsjr4
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Default RE: bad mileage????!!!??

I hope you get it worked out! That gas mileage your getting is terrible
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Old 03-27-2006, 02:01 AM
  #27  
so1o2k3
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Default RE: bad mileage????!!!??

I'm not a gearhead but if your clutch was the issue couldn't you feel it in the clutch pedal if it was going bad? How could you not tell if your clutch was going bad when you press on the damn thing all the time. Also, worn clutches always grab at the top, so if his only has 5k miles and grabs normally it would be so obvious that it's not his clutch. correct me if I'm wrong.
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Old 03-27-2006, 02:02 AM
  #28  
monkeydude3
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Default RE: bad mileage????!!!??

yeah obviously if your clutch is slipping enough to fugg your MPG you will hear the engine racing and car not accelerating
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Old 03-27-2006, 01:47 PM
  #29  
racer02GTstang
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Default RE: bad mileage????!!!??

i took out one of the plugs and it looks like its burning real good... it does have a wet spot though on the strap thing (ground strap?)there is a decent amount of carbon around the ceramic part....
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