Try pulling the engine coolant temp sensor, They often crack not sure
why but the ceramic tip cracks makes the car hard to start, the car's
idle may race while shifting gears, and often smokes. The sensor is on
the right side of the engine when looking at it on the head. Easy to
change and get too
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Possibly a bad coolant temperature sensor, sending the wrong signal that engine is hot and requires fans to be on for extra cooling. I don't know of any sensors for the thermostat, but don't know saturns.
you may want to possibly look into replacing the coolant temp sensor.the sensor is located on the drivers side of the engine just below the air filter tube going to the throttle body-going into the engine block. remove the sensor and check to see if it corroded or even cracked. if so replace the sensor and connector. bot are easily available. you also may look into replacing the thermostat,if the thermostat is stuck then coolant(antifreeze) is not flowing into the engine,so therefor it is not sensing the it is getting hot enough to cool down,so the fans wont turn on. these would be the most common problems. it is not impossible that you have something wrong with the cooling fans themselves but it is not that common.
Have the coolant temperature sensor checked or replace.
That sensor is tied in with the cooling fans. When the coolant temp increases it turns on the fan.
It is usually located around the thermostat housing or screwed into the engine block with a 2 or 3 wire connector on it.
Most cars have the throlte postion sensor on the side of the throtlebody, this car has two tps sensors and uses a motor instead of cable to control the gas (throtlebody). you have one sensor on the gas pedal under the dash and two more inside the throtlebody, to replace these you must replace the complete unit. make sure to diagnose the problem before just replacing parts as this is costly, good day. heres a diagram to show you where it is on a 2.0 engine on saturn but yours is 2.2.and is the whole throtlebody.
Hi, no, they are not related. The oxygen sensor(s) are part of the ignition/emissions sytem and help regulate fuel flow/mixture. The A/C system is self contained and does not affect other engine systems. Mike
u may hav issues with the fuel pressure regulator in the engine area--may also need to test for injector pulse--1st chec proper connection at pump as well as fuses--search chiltons online or buy a repair book at a parts place
The car overheats because the fan system is not working. The engine coolant sensor tells the computer to turn on the fan when it gets hot and also sends temperature readings through the computer to the heat gauge. Try turning the AC on if you have it--it should immediately start the cooling fan. If nothing, check the fan fuse and relay. It's also possible that the fan motor is frozen due to bad bearings. Try replacing the coolant temperature sensor to see if that restores the gauge readings. Hope some of this helps!
I doubt this is possible, the engine may bolt into place, but sensor and wiring may be different.
check with your local Saturn parts department or call a wrecking yard. Smog laws will not allow different year engine in different year car.