Im guessing you are refering to the heater core? its located under the dash but is wrapped in all sorts of plastic. the plastic is bolted together and its a very tedious task removing all that plastic and bolts to get to it. once its visible theres 2 heater hoses going through the firewall that can be accessed through the engine compartment, the rubber hoses need to be removed. once all that is done it should slide out and you can slide the new one in and reassemble.
SOURCE: Heater Fan quit working
chances are the motor or your heater went out try kicking the housing or tapping on the motor and listen if it makes any nois or even starts going make sure you have the fan turned on when you try this also to make sure your switch is good disconect the wires at the moter turn on the heater and see if you have voltage you can use a test light or a multimeter on dc
SOURCE: saturn sl2 emissin problem
If the SES light is on, take a paper clip bend it in a u-shape and jump the scanner input positions A B. This should flash the ses in sequesces to give you the trouble code, Please see the following link. http://www.troublecodes.net/GM/ Refer to the code to see what the issue may be. SES lit means that there is a emmissions related issue. Refer to the other links for additonal information on O2 sensor resistance, and the egr valve solinoid. Check the EGR is relitive easy for operation. Remove the vaccum hose and place a hose of similar suckon the hose to pull vaccum if the diafram underneith retracts, hold the vaccum by plugging off the tube with your touge if the diafram retracts, will not hold the vaccum, it is bad. The solinoid should read 40-60 ohms if good. http://www.saturnfans.com/forums/index.php http://www.aldlcable.com/sc/pages.asp?pageid=21
http://www.saturnfans.com/forums/showthread.php?t=37884
SOURCE: Where is the fuel filter on a 1997 Saturn SL2?
Hello radenke: My name is Roger and I will help. You can find the filter located under the vehicle mounted or the drivers side of the engine compartment fuel rail. Should you need further help please just ask. Please rate the answer you received. This way I know the information was helpful. Thank You for using Fix Ya. Roger
SOURCE: 1991 saturn sl2 water pump replacement
well first you drain the coolant out at the low point on the radiator, that way it is saved if new. then you take off the right front wheel and remove the plastic access cover from behind the wheel to get to that side of the engine. then you take off the serpentine belt and etc. yes you can do this with the engine still in the car. you may want to consider replacing the serpentine belt and tensioner while you are in that area.
SOURCE: I have a 1997 Saturn SL2. I have no heat. We
It is your heater core, there is nothing else left.
The heater housing is usually under the dash, and it must be removed to gain access to the heater core.Procedures for removing a dash, and heater core vary. But for the core:
The heater housing must be removed, and then you
"remove the panels" or "split the case"
(Usually screwed together.)
Remove the coolant hoses, the cable and vacuum control line.
Remove the heater core bracket and clamps.
To install the new heater core, reverse the removal steps.
Core leaks **** because of the core's
location deep within the firewall/ dashboard of the car.
So remember to liquid test your new one before you put it back in, or you could be sorry.
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