2001 Saturn LS2 Code: P0480 and P0481 and P0133

Make sure that the cooling fan is coming on when the engine reaches elevated temperature. Monitor the gauge if the vehicle has one and make sure the temperature rises linearly and stop before it redlines if the fan does not kick in. If the vehicle has AC, then turn it on and the fan(s) should start automatically along with the AC compressor.

If the fan does not come on, then it is either a blown fuse, a defective coolant temperature sensor, a bad fan relay, bad wiring/connectors, or a defective fan. You need to trouble shoot from there based on what you see or take it to someone who can do it for you.

Good luck.

Bob

Might be easy enough to replace but is that the root cause? Dont know how many miles you have on your car but it might also be due for a tune up.

The car does have right at 112,000 miles on it. At 70K miles, the drivetrain was fixed (lifters, timing belt, valves, etc) as they were chattering and sounded like it was knocking. At 80K the fuel pump went out and was replaced. The car, otherwise, has been a good car up to this point. We change the oil regurly but I haven't done any other repair work to it or much maintenance. I think at the 70K mile point when the drivetrain was fixed the plugs and wires were replaced as well. is there a way to tell if they are the original ones or not? The work on the drivetrain was done by a Saturn dealership.

I'll check the other options as mentioned above. Now that it's mentioned, I think the light comes most of the time when the AC is turned on, but it does come on at times when the AC isn't turned on.

Thanks for the help!!!!

What would a tune have to do with those codes?

What was I replying to?=20 "Slow O2 Sensor" Poor plugs equal poor combustion which equals dirty exhaust which equals=20 dirty and slow O2 sensor. Got it?