So, I'm thinking my thermostat is stuck open, or there is an engine temp sensor that isn't working.

25

Asked by Oct 30, 2009 at 07:26 PM about the Volvo S70

Question type: Maintenance & Repair

Getting on freeway when cold in morning just slowly driving it and setting cruise warrants a 1 mark above cool with heater set to max.  With heater off it will heat up faster having no heater core flowing. Around the town going through gears and accelerating and sitting at lights it warms up completely normal.  It just heats up really, really slow when your not giving it hardly any gas.  Is this normal? Perhaps my gas mileage will suffer with incorrect operating temperature fluctuations.

3 Answers

11,925

Yes to all questions ( Tstat and bad mileage )

25

Just replaced my thermostat with a new one. That was the problem...stuck wide open, probably factory original. Warming up quick and getting better MPGs... Awesome.

New thermostat on my 06 xc70 last week. Worked fine for one week. Now, exact same problems as before: no heat, temp gauge not reading, check engine light is on. Of note, there's only 93000 miles on this car..

Your Answer

Add photo

Related Questions

S70

Looking for a Used S70 in your area?

CarGurus has 115 nationwide S70 listings starting at $1,995.

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
118 Great Deals out of 7,948 listings starting at $2,195
Used Volvo S80
28 Great Deals out of 899 listings starting at $1,095
Used Volvo V70
428 listings starting at $2,495
Used Volvo C70
19 Great Deals out of 534 listings starting at $1,495
Used Nissan Altima
1,153 Great Deals out of 79,677 listings starting at $500
Used Volvo S90
10 Great Deals out of 1,916 listings starting at $39,514
Used Volvo S40
27 Great Deals out of 1,059 listings starting at $800
Used Toyota Camry
1,101 Great Deals out of 90,760 listings starting at $1,599
Used Volvo XC90
103 Great Deals out of 8,042 listings starting at $2,600
Used Volvo 850
63 listings
Used Volvo XC70
47 Great Deals out of 921 listings starting at $1,800
Used Dodge Dakota
137 Great Deals out of 3,796 listings starting at $1,495
Used BMW 3 Series
941 Great Deals out of 30,259 listings starting at $1,000
Used Volvo XC60
135 Great Deals out of 5,486 listings starting at $6,995
Used Toyota Corolla
851 Great Deals out of 70,589 listings starting at $1,874

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.