I have 96 Saturn sl1 ,it started getting hot ,1 day ,I stopped immediately,let it cool ,put in antifreeze drove about 1 Mile and parked for hours, then changed resivior because noticed little water dripping, after resivoir v,changed water pump , thermostat ,flushed radiator out ,still overheated ,not as quickly though & heater started blowing cold air,and not fans ,still gets hot on freeway,there's NO water or milkshake choc in oil,nor antifreeze ,no white smoke out tailpipe? Or water ?& Compression test was very good???

SOURCE: 2002 civic ex overheating

with your description it sounds like your fans are not coming on, also sounds like the problem was never solved, sounds like you threw a lot of money at your problem also... check to see if the fans are coming on at the right times, seems like a n air movement over the radiator since you say it only gets hot in stop and go traffic... well when your driving at a constant highway speed guess what you have air movement through the radiator... check also a clogged ac condensor with bugs, pressure wash it out so the air can pass through it easily... please rate my help thanks

SOURCE: 1994 Dodge Spirit heater blowing cold but radiator is overheating

1st you need to make sure no air in your system open you radaiator cap and your heater to max and see if air bubles or circulation is going on fill up accordingly otherwise you have blockage in your system or water pump if no circulation ////make sure no bubles all bubles should be gone////look for coolant circulation in your radiator make sure your thermostat is not defective or placed in the right position.

SOURCE: 2000 satin sl1 heater blows cold air, had the

my 2000 saturn sl blows cold air with the heater on. I changed the thermostat,and checked out my heater core.Still blows cold air.

SOURCE: Heater blows hot air while car is moving but cold

That sounds like the coolant level is low. If it is not the use of "stop leak" has probably caused a partial clog which restricts the flow of water unless the vehicle is turning higher RPMS. While sitting still raise the RPMS to about 2000 and see if the heater blows hot air to see if the above mentioned problems are fact.

SOURCE: Heater doesn't get hot on 96 chevy truck. Blows good, just cold. Replaced thermostat, flushed radiator. Any ideas?

1 run truck to operating temp 2 feel both upper and lower heater hoses near firewall both should be same temp if not clogged heater core 3 if both same temp mode door not changing from a/c to heat