Car runs hot after very short time, radiator fan doesn't seem to be working.What could cause this?
Bad fan relay or fuse bad temperature sensor/sending unit
Thermostatic switch
The ECT sensor??
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Steve,
You need to replace your fans sensor switch or make sure you don't have any wires that may have been worn through. You can test your fan by hooking a direct 12v currant to it to make sure it works. The fan can go bad, but I usually find that the switch just stops working.
Testimonial: "Alex, a you talking about the ECT sensor loated underneath the thermostat?? The fan is good, so is the relay."
Yes exactly. ON Volvo it both tells the car the temp and controls the fan.
Thanks for your help Alex
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Your thermostat needs to be checked. Your heater core not functioning will cause other problems, but not what you describe. I betcha it is the thermostat. Get that checked before you go into critical overheat, which can warp or puncture your head gasket, and or freeze your engine. Your idiot light going off when your car overheats?
Testimonial: "No idiot light. Car doesn't actually "overheat" persay.The gauge goes up to about the 3 o'clock position.I do know that The fan DOES NOT come on when the A/C is on though. Replaced Fan Relay, no help."
SOURCE: Replace Heater Core for Volvo S70 (1999)
It is your heater core. I fixed mine for $144. Ordered the new part on Ebay and followed these instructions http://www.volvospeed.com/vs_forum/index.php?showtopic=9717 It was very simple, I'm a middle age grandmother! The hardest part was cleaning up all the antifreeze. You will need a shopvac, a small one is $20 at WalMart.
SOURCE: Car Heater smells strange
from he Popular Mechanics site if the smell in your car is like maple syrup:
(1) SMELLS LIKE:
MAPLE SYRUP
WHEN: After the engine has warmed or possibly even after it's shut off for a few minutes.
THE CULPRIT: Coolant containing sweet-smelling (but toxic)
ethylene glycol is leaking from somewhere. It could be coming from a
radiator or heater hose, a failed intake manifold gasket or cylinder
head. It might be coming from a leaky radiator cap or the radiator
itself, especially if you smell it outside the car. A strong odor inside the passenger compartment probably means a bad heater core.
SOURCE: installation instructions/diagram for 1998 volvo s70 starter
IT is very easy get all of the intake ducts out of the way to get access to the starter motortakk off rubber boot and first disconnect neg battery terminal next unbolt two bolts that hold starter and the 3 wires and ground terminal from starter (i have a 14 millimeter wrench that i cuit in half to make removal easier) and you should be all-set
SOURCE: AC problems on 1998 Volvo S70
yes it uses r134 a port located on left side top of car front view by the window washer fluid plug is blck unscrew plug add r134a while car is on and ac is on
Please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
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The ECT sensor??
Don't have a "code reader".
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