Temp Issues
 

I have a 1995 850 Turbo Wagon with about 147K miles. Most of the time the temp stays right around the 3 oclock position. Sometimes when sitting at a light, the temp will climb to almost the 2 oclock position - or 3/4 of the way to the red overheat line (with AC off). It stays in this position for a 10or so seconds then drops down for some reason. I think the cooling fan may be coming on anddrops it down, or if I start moving the car its comes down right away. It never did this last summer, so I"m thinking maybe the thermostat? Anyone agree?

RE: Temp Issues
 

Yup.
I'd sat thermostat.
about to do mine.
Car takes far to long to warm up this winter.
Get to work (10klms) away before it reaches 'normal' temp.

RE: Temp Issues
 

It's either the thermostat or a faulty coolant temperature sensor that is not switching the radiator cooling fan on which will cause the coolant temperature to rise when the vehicle is stationary (i.e. no forced air flow through the radiator).

RE: Temp Issues
 

Change the thermostat and if that does not work, try the coolant temp sensor. One or both are getting iffy. Be careful taking the thermostat cover off. IT is very easy to bung up the torx bolts on it (don't ask how I know!)

RE: Temp Issues
 

Hello Volgrrr,

I agree with you on this but there could also be another explaination.

The Cooling Fan itself.

I have been having issues with The Anvil's cooling system and have changed the thermostat and temp sensor to no avail.

It turns out that the fan itself is the problem.

I removed the center plug of the cooling fan relay, which has two pins in it which are for low and high speed, and connected them seperatly to ground and was able to get the fan to work.

Thismight indicate that the temp sensor is to blame but when I went to the shop they could not get the fan to work. They connected it directly and it still would not work. I told them what I had done to get the fan to work and we both decided then that it was time fornew $$$fan.

When I got home I again connected the fan, via the relay, and the bugger worked[:@]. For a bit.

It seems that if I tap the fanit will come on but sounds horrible. And to prove that it is the fan, and not the relay (which clicks when the fan comes on high or low)yesterday I did the same thing and the fan came on but ran very slow. And made the same horrible sound.

I found one at A&O Auto Parts, in Arnprior, for $125 and will pick it up tomorrow (testing it before I pay)and put it in on the weekend.

It may not be BriGuy's problem but then again it might be.

Just a different view of what could be the same problem.


[sm=icon_cheers.gif]

RE: Temp Issues
 

Thanks. I'm going to try the thermostat first then the temp sensor. I replaced the fan past summer, I noticed the car overheating in the city, then at stop lights saw lots of really bad smelling smoke coming out of the grill. The fan was frozen and couldn't turn, but was trying.

RE: Temp Issues
 

BriGuy,

It´s good to hear that you are addressing the problem, because neglecting it can cost you your engine due to overheating.

I consider it bad faith from the manufacturers that they do not provide an audible alert to tell you the car is overheating. Most people don't realize something's wrong until the engine's fried.

There's a company here in Argentina called Vigia that retrofits a several sensors (oil pressure, temp, voltage and another one I don't recall) and connects them to a small control module. If the car starts to overheat it will beep very loudly. You can even configure it to cut the fuel supply if it is overheating severely.

The cost is approx USD 300 including labor.