Questions & Answers for: Volkswagen Jetta thermo sensor

...thermo sensor is bad or the fan unit is shot... please rate the solution..........thanks sounds like your water pump is going out. are the hoses building up pressure. i had this problem on my jetta ...

sensor themostat water pump impeller fan motor or fuse on battery check to see if fans work by turning on Air Conditioner (fans should run with A/C on). Turn A/C off, warm engine, check to see if fans

...it the the fuel inject pump.other think it the wire fault from the dealer. Check the glow plug thermo sensor...found in the cylinder head. Unlightly anything wrong with injector pump. Good luck ...

...T reg VW Polo 1.0 this is a POLO not a JETTA can you advise? There are many number of reasons for this problem...but a VERY common one is a faulty thermo sensor which controls air / fuel ratio. ...

...sensor by the radiator(?); some, a thermostat that won't open; others, my water pump. What is the root cause of all this? And IF it is a wornout thermo-stat, where specifically is it located? It is ...

2003 Jetta temp guage not working Possible the Thermo sensor faulty. Need more info...Any dash lights on...Is interior heater working correctly...Is coolant level ok...Is Temp gauge moving at all John

...thermo-time switch. This sensor will tell the ECU if engine is cold and will add fuel to the oxygen mixture. When it's in operating temperature it will tell the ECU for correct preset fuel mixture. ...

...thermo sensor, and fan switch. I did notice the fans are not turning on during normal running. could this be the problem? Could it be the Fan control module not turn on the fans? run a wire from the ...

THERMO SWITCH BAD BOTH FANS SHOULD BE RUNNING AT LOW SPEED.IF ALL LOOKS GOOD YOU COULD HAVE FAULTY LOW COOLANT SENSOR IN EXPANSION TANK.MAKE SURE COOLANT IS IN THE EXPANSION TANK BECAUSE COOLANT LEVEL

...sensor on the overhead coolant line to block fans still run. any sugestions? The fans are run by rad temperature, not engine temp on a VW.Somewhere on the rad you should see a wire harness plugged ...