Temperature gauge

[michc927]

Hi, I own a 2006 V70 2.5T. The Temp. Gauge goes up slowly and then when it is finally almost to the center mark it fluxuates from 1/4 to just under half (where it should be). It runs to 1/4 when I have been going fast on the freeway. Runs closer to 1/2 and even at the half way when I'm going slow or in light traffic.
Also when stopped, I smell gasoline.

Any suggestions or help is appreciated!

Michelle

[michc927]

Also, if I replace the Thermostat, what brand and part number, and how much would it be?

Thanks,
Michelle

[precopster]

On this model you need the entire assembly which includes thermostat, housing & temeperature sensor.

http://www.fcpeuro.com/Volvo-parts/S60/ ... 279&e=2105

Wahler is a very good brand and they specialise in thermostats. They supply automakers with components

Mind you order a gasket separately.

[sergio]

.
As the old man said "Measure twice cut once"

I suggest you get a "ELM327 OBD II" for around 10 to 15 bucks online, then get a copy of "Torque Pro" Android app for 5 or 6 dollars or even free, just search.

Read your coolant temperature.
If the fluctuations you see match the reading of the OBD then, and only then pay +- $ 105 to get a thermostat. If it is not, wait a little bit maybe other gauges and dials on the DIM (dashboard) will start dancing which is a totally different story.

Incorrect diagnostic cost a lot, I mean a lot. I speak of experience.


.

[michc927]

I have another question off topic. Where do you see the codes when you get a warning light that comes on?

[precopster]

sergio's advice is sound. The smell of gasoline is a hint that the temp sensor is out of range because the engine computer will send more fuel when engine temp is reporting as low.

The temperature in traffic should be between 96-103 deg C and no lower than around 92 deg C when crusing at high speed.

Of course if your temp sensor is out of range these figures won't be reproduced.

In response to your question you would need to read the car's engine computer with a OBDII reader to see if anything is stored.

[oragex]

Like others say, it can be the temp sensor, my opinion is to first check the thermostat for being stuck open.

Whit the engine off and cold, remove the coolant reservoir cap, and give a firm and quick squeeze to the upper radiator hose (it's a thick hose on top to the left front of the engine). In my opinion, if the thermostat is stuck open, you will see large air bubbles inside the coolant reservoir. If the coolant just 'shakes' inside the reservoir without air bubbles, the thermostat should be fine.

[michc927]

Thanks for all the advice. I changed my ETC and the fuse last week. I think i will change the thermostat now.
How do i know if my temp sensor is out of range?

[sergio]

.
michc927,

I sent you a PM. Read it before ordering your thermostat.!

It may save you a little frustration
.

[michc927]

Now i'm trying to replace the thermostat and i can't get to the second screw on the housing. This silver box is in the way.
Michelle