I have a 1996 saturn SL1 just bought the car and the head had a pen siz hole in it. Took the head to a machine shop, they fixed it and rebuilt it. I put New head gasket kit on too. Got it running, but can't keep water in the radiator. Car gets to normal running temp and it starts spitting ALL the water out of the overflow. I've filled it about 4 times now and the same thing everytime every time. So I guess the question is WHY is it doing this?

SOURCE: What would cause my1999 Saturn sl1 not to start

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.

SOURCE: oil in the radiator

They lied to you and hadn't repaired the blown head gasket.  Or they did a horrid job.  At most it's a 5 or 6 day job.  You need a new mechanic as I'd never trust this place again. 

SOURCE: 1993 saturn sl1 car runs great then quits for no

Try changing your fuel cap.

Mike Butler

• 6674 Answers
• Posted on Jun 27, 2009

SOURCE: 1996 saturn sl2 fan coming on late an over heating

Start with engine cool, & remove radiator cap. Check level in rad & fill to an inch or so from top of rad. Start car & turn heater on.(not defrost)
Now let it run until engine gets up to normal operating temperature & let it run until rad fan comes on & off, 2 or 3 times. Rev engine slightly every so often just to help disperse air in system faster. Fill rad as needed during this time. After you do that, and fan has come on & off 2 or 3 times, put rad cap back on & fill return bottle to proper mark, then see how it is.
I suspect it's just air in system & this should cure that . If not get back to me.

SOURCE: 2003 saturn vue 3.0 engine, replaced timing belt,

You could have a leaking water pump gasket. Did you put sealant on it when you replaced it? were ALL surfaces totally clean?