MY 95 SATRUN SL2 SHIFTS HARD JUST HAVING PUT A

Transmission shop is your only answer, parts are only required to be available for 10 years from the production date. Since that company also folded you are out of luck

I'm 99% positive that compression should be more than 200psi. If the chain broke it bent valves. A used motor would be your better option. The 1.9 SOHC is a cheap and common engine. The 1.9 DOHC will be considerably more expensive.

If you have a manual transmission the engine and trans will need to be pulled together and separated out of the car. If you have an automatic transmission the engine can be removed without pulling the transmission.

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that means your rings, valves, or head gasket are going bad beyond the normal aging of all the cylinders. the number 3 was the first to go on my 91 DOHC too. the car is nearly 20, and that stuff happens with age and use. I would look around for a low mileage DOHC Saturn engine from a 94 SC2 or SL2. the engine is so old that to fix it you will have to rebuild it which will cost far more than the 500 dollars the whole car is worth. the same engine was in them from 92-94, possibly even a 95. make darn sure you find a DOHC engine and not the SOHC, they look almost the same but they are not interchangeable unless you change the transmission, the exhaust, all the wheels, and the speedometer.

sounds like the trans is going bad but make sure it is full when it is running in park and on level ground

I think you should call around to local scrap yards and look on your local craiglist for a DOHC saturn engine with much lower mileage. Perhaps even a used engine vendor on ebay could be local to you. In any event I think before you undertake a major engine repair on a 15 year old engine it might make sense to put another engine in there. I do not know if a 95 DOHC is the same as a 99 DOHC but no doubt there are a few years which are interchangeable.

There isn't much difference between them. The SL series didn't change between 95 and 96 except for the ecm is OBD2 on the 96. Are both cars stick shift? The difference in the SL1 and the SL2 are the cams. 1 for sohc and 2 for dohc. So what you are asking is can I take out my dohc motor and install a sohc motor right?

well if it shifts very hard into every gear that means the pressure control solenoid in the trans went bad and it causing the trans to go to max line pressure thats why it shifts so hard,,,it does that so you can still drive it even thou it broken,anyhow the PC solenoid is under the trans pan which is on the TOP of the trans under the battery,,,,not too hard a job to do, the parts are about $100 labor might be about $200,,,easy fix,,could be alot more,,,and if you dont fix it ,it will break other stuff in the trans and cost alot more,,,

Trans or trans controller.

this might be a dumb quest. have you checked the trans fluid ? if so you might need a torque converter in a automatic . or clutch in manual trans.

I also have a 1999 sl2 saturn . I was having about the same problem but mine also did not want to go into reverse somtimes as well . Ichanged my fluid and filter and put in a good trans conditioner and just about all my trouble went away. The trans filter is just like a oil filter it just screws on the outside of the transmission . It is located down under the air filter housing, and the fluid plug is right on the bottom of the trans.