1998 Saturn SL1 cylinder head replacement

sc1 means saturn coupe with a single overhead cam engine sl1 means saturn sedan with a single overhead cam engine same engine and same parts for both these cars

you can not just change the engine you would need to change the transmission and the computer the front exhaust pipe but if you are willing do do it anyway the signal cam engines had a problem with the cylinder heads cracking and the dual cam is common for oil leaks

The head gasket is in between the cylinder head and the engine block. The sly has a single overhead cam engine. This head is know for being porus and allowing oil into the coolant. If this is the problem your having than the only fix is to relace the head. Replacing just the head gasket will not help unless there are other circumstances that ruined the head gasket.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

all Saturns for that year came out with a 1.9 liter engine. There was only one model that was different and had a single overhead cam. The rest had a duel overhead cam. The firing order is the same in both so you are in luck (see picture below). I hope this helps and good luck.

That is pretty easy. If your Saturn is an SL1 it is single cam if it is an SL2 it is dual cam. That is the only difference between an SL1 and an SL2 - Saturn didn't even bother to put a tag or emblem anywhere on the body to differentiate between the the two models. The 8th digit in the VIN will confirm this for you. If the 8th digit is "7" it is a Dual Overhead Cam (DOHC) engine. If the 8th digit is a "9" then it is a Single Overhead Cam (SOHC) engine. When you have seen both engines, it is pretty obvious by simply looking at them. The DOHC cam cover is much wider and has 2 "humps" with spark plugs and wires going down the center between the humps. The SOHC cam cover is narrow and the plugs and wires go down one side.

Also in the 1992 model year, the DOHC engine was equipped with Multiport Fuel Injection. (MFI) The fuel injectors (4 of them) were located in the top of the intake manifold. The SOHC engine had Throttle Body Injection (TBI) The two injectors were located in the throttle body.

I don't have any pictures of the cam covers, but I have pictures of the cam cover gaskets (AKA Valve Cover Gaskets) you can very easilly see the difference.

The same basic engine, a 1.9L 4 cylinder, is in all Saturns 91 through 99. The main difference is whether or not it is a double overhead cam or single overhead cam. There is a fuel filter in the gas tank to keep debris out of the fuel pump, and another one in the fuel line just after it comes into the engine bay. It is a single in line filter and you can buy them at most auto parts stores. It may help the salesperson if you know if you have the SOHC SL1 or the DOHC SL2.

Unless it has been modified it is a 1.9L 4 cylinder, the same engine in all Saturns from 91-99. The only difference is whether or not it is a SOHC or DOHC, meaning single or double overhead cam. Double overhead cam has spark plug sockets in the center of the top of the head and is overall slightly larger than the SOHC engine which has spark plug sockets on the front of the engine. Usually there will be something on the rear bumper like DOHC as well. The engines are nearly identical in all other respects but the transmissions are not the same. If your car has 14 inch wheels most likely you have a SOHC while if your wheels are 15 inch you have a DOHC.

Hello DTC P0341 & P0133 very common saturn Codes.You need to check condition of Plugs & wires,If not New Replace All Plugs & Wires,also I would replace the #1#4 Coil for the P0341.For the P0133 Reaplce your front O2 sensor with an OEM sensor,not an aftermarket.

Check the cam/crank sensors. Also, if the car happens to have a distributor, make sure it is not 180 degrees off. If this does not help, then do a compression check. Remember, and engine only needs three things to run. Fuel, Spark, and Compression. (in order of course.) The firing order for your engine is 1,4,3,2.

You have said your car is an SL model, if it an SL or SL1 you will have the single overhead cam engine. There is a TSB from GM ablut heads that crack, I had a 96 SL1 that did the same thing, and I had to replace the cylinder head. Many people just put in a head gasket because it is so common on 4cyl cars. This will not fix your problem. What has happened is a presure galery that feeds oil to the cam on the head is cracked into a cooling passage, and the 45psi oil is being pulped slowly into the 15psi cooling system. You will probably need to replace rubber cooling and heater hoses as the oil will attack and weaken them, and set you up for possibly another problem down the road. I hope this was helpful.
Andrew