Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

Sudden loss in MPG

Old Sep 27, 2008 | 11:47 PM
  #1  
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Default Sudden loss in MPG

The other day I noticed on my dash it said i was getting 18.1 MPG. (It usually says 18.7 or around there) Then I noticed it dropped down to 17.8 on Thursday. Now, Today it says I am getting 15.8.

Now when I last filled up (Thursday) i noticed my trip computer was also going crazy and saying I had drove 1,050 miles when I simply went down the street.

I am not sure if it is just the computer is just malfunction or I have suddenly lost 3 MPG's for some reason.


 
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Old Sep 28, 2008 | 06:40 AM
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Default RE: Sudden loss in MPG

Might be the last tank of gas you got.
When you say it was going wacky was it just after resetting it?
If so the first mile the trip reads in feet till it hits one mile.
 
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Old Sep 28, 2008 | 07:20 AM
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Default RE: Sudden loss in MPG

oh thats why, it looked like it was reading it in feet.

i asked someone and they said i may need to change my spark plugs. Could that be it?
 
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Old Sep 28, 2008 | 07:29 AM
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Default RE: Sudden loss in MPG

Yes could very well be. If it has been a while since last tune up I would do it.
 
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Old Sep 28, 2008 | 10:46 AM
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Default RE: Sudden loss in MPG

I think that the reading in feet would mess up your train of thought the first few times you saw it.

quote

My trip computer was also going crazy and saying I had drove 1,050 miles when I simply went down the street.

quote

WOW, a time travelling Volvo. Or you live on the worlds longest street.

Just imagine if the computerkept measuringin feet?

[sm=icon_cheers.gif]
 
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Old Sep 28, 2008 | 11:03 AM
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Default RE: Sudden loss in MPG

QUICK..what's up ?so how's the brick running these days?
fabs
 
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Old Sep 28, 2008 | 12:15 PM
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Default RE: Sudden loss in MPG

Hey Chef,

The Anvil is causing me a FRACKIN headache![:@]

Got a serious pull to the right when braking and I have all new components. Rotors, pads, calipers, flex lines and fluid. Axles are less than a year old, suspension is less than a year old.

Going in for an alignment on Friday, pay day of course, and the licence and registration are due then as well.[]

Rotating the tires today and going to pull some codes to maybe see whats up with a couple of other small issues (ABS and a intermittant stalling)

[sm=icon_cheers.gif]
 
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Old Sep 28, 2008 | 06:22 PM
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Default RE: Sudden loss in MPG

QUICK...for the pull, have you tried to maybe change your brake fluid and bleed out the brakes really well, might help?? as for the stalling i don't know what it can be...clogged fuel filter? don't know..g'luck?
fabs

 
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Old Sep 28, 2008 | 09:48 PM
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Default RE: Sudden loss in MPG

Chef,

Done and done.

There has to be something Im missing.

In factthe entire front end is new in the last 11 months. Including tires.


[sm=icon_cheers.gif]
 
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Old Sep 29, 2008 | 04:55 AM
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Default RE: Sudden loss in MPG

Hey Purplehaze799,

Were you able to changeyour plugs?

Looking to see if your problem is fixed.

[sm=icon_cheers.gif]
 
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