Everyone should have a manual for their vehicle, and the library should have a professional shop manual available, for FREE, in the reference section(make copies of the correct sections) read up and fix it like a PRO! To paraphrase what Dave just said, " I don't know, get a book."
My part of this answer is this..... This location is described as being on the drivers side of the cylinder block. The Haynes manual shows two similar devices. One with a single wire the other with two wires. The single wire sensor in the Haynes picture is located directly next to the water hose on the top of the block on the drivers side.
The two wire sensor is about four inches from the same hose towards the cab as shown in the picture.
Make special note of this: On 1991-95 Saturn models, two coolant temperature sensors are utilized. Be careful not to confuse the single-wired coolant temperature sender used by the instrument cluster temperature gauge (which is covered in Section 2) with the 2-wired sensor used by the PCM. On 1996-98 Saturn models, only one 2-wired sensor is used to perform both functions Be certain the engine is cold before removal. The coolant is in direct contact with the sensor and will begin to pour out when the sensor is removed. You may notice that there is a white cap where the wires go in the top of the two wire sensor. DO NOT REMOVE THE WHITE CAP! This is a strain relief and will weaken the connection if removed.
Take a flat screw driver and approach from the top. Get between the block and the sensor and it will pop off nicely. Then use a deep well socket to remove. When replacing, use pipe dope or Teflon tape on the threads. Do not over tighten, when the unit begins to bind, your done. You will see in the sensor and on the wire connector that it is keyed. There is no polarity, so don't worry about witch way it goes on. Lightly place the connector on to the sensor and slightly twist until you feel it fall into place. Then push in to get the snap.
Bad Engine Coolant Temperature SEnsor.
The speed sensor on a 1999 Saturn SL1 is under the transmission. It is below the fittings for the transmission cooler lines.
Either coolant is low or the sensor in the reservoir is stuck with dirt. Clean the reservoir with soap and water
bad fan or bad fan relay
Has the engine coolant temp sensor ever been changed.
Blown fuse? Bad fan motor? Bad temperature sensor?
The sensor is the Engine Coolant Temperature Sensor, located under the EGR, on the side of the engine between the engine and the battery. Brass sensors can be bought at the dealer.
You probably have a bad coolant temperature switch, this are fairly cheap and easy to install.
Dirty and stuck Idle Air Control Valve. Clean it and the throttle body. Also replace the Engine Coolant Temperature sensor
It's right next to the transmission oil filter. It has a two-wire connector plugged into it. NOTE: if you have a manual transmission, there is no trans fluid temperature sensor.
The tft sensor is located right beside the trans. external filter. The breather box needs to be removed for access to it
On the 1995 Saturn SL1 The oil pressure sending unit is the sensor closest to the alternator. The unit is on the back of the block.
behind the catalytic converter
on the firewall side of the engine below the intake.
throttle posistion sensor or vacuum leak
The sensor is on the transmission above the right drive axle two wires to it
if there is no camshaft position sensor then why am i getting codes for it and how do i eliminate those codes?
all parts of the car will work some things such as the second coolant temp sensor wont if you were going from a lets say 1993 to a 1997 because the newer models had no need for a second one but that would only effect you if you were swapping the engine block itself
Not on the clutch itself but on the clutch pedal there is one for starting.
into the coolant reservoir on the passenger side of the engine bay by removing the cap
One of the most confusing answers you may get, to understand, is they will say it is the engine coolant temp sensor. Which it is, and when you order online, if you try to search transmission fluid temp sensor, you will get wire connections, for a Saturn. I have a 1997 Saturn SL1.What you order is an Engine coolant temp sensor. It can be used in two places, that I know so far. The side of the engine, to regulate when the engine fan comes on. And on the transmission oil pan, near the transmission filter. They are the same sensor part number, that can be used on those two spots.
timing for spark plug wires for saturn sl1 1996
The camshaft sensor on a 2000 Saturn is located on the firewall side behind the lower engine assembly. The camshaft sensor is the last one with a connector facing the transmission.
On the SL2 (DOHC), there are two coolant temperature sensors located on the left-hand side of the cylinder head, near the upper coolant hose. Your SL1 (SOHC) might be different. On the SL2, the upper sensor with ONE WIRE controls the temperature gauge in the dash. The lower sensor with TWO wires provides input to the computer. They are not interchangeable. Yours may be similar. Here is a tip you will need a 4mm deepwell socket to get it out. Actually, you will need a 14mm deep socket or box wrench. The new sensor may require a 13mm socket or wrench, depending on the manufacturer.
I just had one in the shop here. You may also notice that your coolant guage shows lower than it used to. This is likely a coolant temperature sensor, located on the back of the cylinder head. It is giving out of range readings of the engine temperature, and will be most noticed on startup. It is very important to remember to check the pigtail when changing the sensor because corrosion is what usually wrecks the sensor in the first place. It is too difficult to clean the pigtail so replacement is a strong recommendation. Any Saturn dealer should have it. Abe G.