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Re: How do i replace a coil pack on a 1999 saturn sl1...
Follow the plug wires to the ignition module-it houses 2 coil packs. if you are attempting to fix a misfire you may need to replace the whole module(see my tips)
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The SL is the small 4 door
The SC is the 2 door Sport Coupe
The numbers refer to the engine. The all have a 1.9 liter. "1" is a Single Over Head Cam, 8th VIN will be an "8". "2" is the Dual Over Head Cam, 8th VIN will be a "7"
So a Saturn SL2 with be a 4 door with a DOHC 1.9 liter. SL1 will be a 4 door with a SOHC 1.9 liter. SC2 will be a 2 door with a 1.9 liter DOHC. SC1 will be a 2 door with a 1.9 liter SOHC.
I would not remove a 20 year old part, and install an 11 year old used part when a new part is only $30.00. I would not go to the trouble of removing any 11 year old part from any vehicle, especially if it involved removing an engine mount, a serpentine belt, and a cam chain cover, when a new part is only $30.00. I would not attempt to swap any engine parts between DOHC and SOHC engines even if the blocks are the same. Do not put in used wear items as you will end up doing it right again in a few months.
If you have the 1.9 SOHC, you don't have one. If you are getting an error code for a bad camshaft sensor, you either have a bad spark plug wire (#1) or corrosion where the plug wires go to the coils.
Swap wires from cylinder 1 to cylinder 2, and see if the check engine light goes away. (This is common on the staurn) If it does, replace the wire set.
if it is an SL1 it has a SOHC 1.9L. Basically the same engine was in all saturns 91-99, just different heads. the Sl2 had double over head cam and the Sl1 had SOHC.
The SL2 is a DOHC 1.9L and the SL1 is a SOHC 1.9L. They have different transmissions, the DOHC uses a 15 inch wheel while the SOHC has a 14 inch wheel. So when you are shopping around for another transmission you must get one from the same type of engine. Saturn auto transmissions seem to be problematic, I stuck with the manual trannys and had very good luck.
The filter is way up on right (passenger side) and the back side of the engine. I found it easier to access by removing the rt front wheel and splash barrier plastic panel directly behind where the axel comes through.
looking at the motor follow the plug wires down to the coil pack located lower middle of engine.take wires of making note were they are posistioned unplug electrical connection should be 3 bolts 10mm. heads.then remove
Take your coil packs off as well as your module whch is on the bottom of your coil pack (4 bolts 8mm)and take them down to your nearest AutoZone and they will test them for free...one of the coil packs could be bad, but just as well test the module while you are at it.
front wheel drive you have to pull them both and i believe you have to drop the motor through the bottom of the . its not like rear wheel drive where you pull it out. your gonna have to jack that car up pretty high is you dont have a lift
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