sudden decrease gas mileage

175

Asked by Jan 16, 2011 at 07:07 PM about the Volvo S70

Question type: Maintenance & Repair

All of a sudden, I went from 20 mpg to 11? Filling up every 2.5 days!  Any ideas

6 Answers

175

PS...this is my 9th volvo...I am not new to the wonderful world of volvos. Each one of my girls have s70's and my husband and I have xc90's! Any advice? Fuel filter??

5 of 5 people found this helpful.
20

What is your mileage? Is the temperature guage reading the same? Is there Black soot in the tailpipe? Has the idle speed changed? Is the check engine light on?

1 of 1 people found this helpful.
175

Sorry took so long...wanted to have car checked out. 7 codes came up. But milage is 147,000 K. There is black soot out of tailpipe. Rough idling not stalling, but uneven idling. Check engine light is on. Thank you!

3 of 3 people found this helpful.
175

ps..no the temp. gauge wasn't reading right and had thermostat replaced too. Thank you so mucha again!

20

My guess not knowing the codes with soot, low engine temperature is the front O2 sensor. Have the codes checked ( free at Auto Zone)

50

cloged fuel filter ?

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

S70

Looking for a Used S70 in your area?

CarGurus has 113 nationwide S70 listings starting at $3,700.

ZIP:

Search Volvo S70 Questions

Volvo S70 Experts

#1 Christopher Paden
Christopher Paden
Reputation 800
#2 Flint
Flint
Reputation 450
#3 David Farc
David Farc
Reputation 400
View All

Related Models For Sale

Used Volvo S60
147 Great Deals out of 8,245 listings starting at $895
Used Volvo V70
4 Great Deals out of 425 listings starting at $1,595
Used Volvo C70
29 Great Deals out of 588 listings starting at $1,495
Used Volvo S80
32 Great Deals out of 945 listings starting at $1,295
Used Volvo XC70
43 Great Deals out of 987 listings starting at $1,500
Used Volvo S90
8 Great Deals out of 2,274 listings starting at $41,788
Used Volvo S40
31 Great Deals out of 1,054 listings starting at $1,400
Used Volvo XC60
118 Great Deals out of 5,596 listings starting at $7,481
Used Volvo XC90
98 Great Deals out of 8,183 listings starting at $1,994
Used Honda Accord
812 Great Deals out of 84,287 listings starting at $1,050
Used Volvo 240
36 listings
Used BMW 5 Series
459 Great Deals out of 15,988 listings starting at $1,700
Used BMW 3 Series
972 Great Deals out of 31,729 listings starting at $1,000
Used Volvo 850
54 listings
Used Volvo V60
52 Great Deals out of 2,448 listings starting at $14,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.