coolant light...help!!

[finelinen]

My car has been working wonderful until... 3 weeks ago I got an oil change on my car. The next week my coolant light came on and my heat gage was going crazy. I took my car into a mechanic who replaced the temperature gage and some fuses. My coolant light stayed off for a week, but now it is going crazy again.

It keeps randomly coming on, and I have plenty of coolant. It doesn't seem to be overheating at all.

Please help! I don't have the money to keep getting it fixed if the problem isn't solved. Is there any way to find out why the light is coming on?

Thanks!

[Classicrocjunkie]

Is your resovior full? Did u know there is a sensor in the tank that will put the light on when it gets low, or just flick that sensor a few times and should be ok. OR umplug you bat for about 30 sec to 1 minute. to reset your cars computer.