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Coolant Service Light

Hello. I would need to know which misfire codes you are getting to know for sure what is going on. Most of the time on this vehicle if it is a single cylinder misfire then it may be as simple...

Hi there. For the coolant light to go out, you would need to have the coolant between the low line and the full line for the light to go out. If the coolant is low and keeps on being low,...

Hello, and thank you for writing in. The first place to start is by checking the level of the coolant both in the coolant reservoir and in the radiator. Low coolant means you do in fact have a leak. If...

German luxury cars built in this century are very complicated. They have multiple electronic control units for different functions, one for the engine, one for the transmission, one for the brakes and half a dozen more for various body functions....

This is a very odd set of symptoms. I would suggest ruling out any fuel-related issues as the poor fuel economy and lack of power could be related to faulty sensors like the throttle body sensor, mass air flow sensor,...

If you have the GS model, that means you have the supercharged version of the 3.8L engine. The naturally aspirated 3.8L has problems with the intake gasket leaking, which results in coolant/oil intermix. However, the supercharged version is not as...

Hi there. Some coolant leaks can be hard to find and may only appear when the system is under pressure. If you are getting a hissing noise it is possible that you have a leaking hose, but most of the...

Hello. The motor that is in your car (https://www.yourmechanic.com/cars/pontiac/grand-am) is known to leak antifreeze from its lower intake gasket. You will usually never see any antifreeze on the ground when/if this happens. Replacing the lower intake gasket should solve this...

The reservoir could have a crack in it or the hoses to the reservoir could have the clamps loose or the hose could be split causing the coolant leak. If there is a coolant leak, then the coolant pressure will...

Hi there - it sounds like there is still a coolant leak independent of the radiator which needs attention. It is also possible that there is an air bubble in the engine which may need to be bled (air bubbles...

It sounds like the engine thermostat, a device that reduces coolant flow until the engine has reached it's operating temperature, is not opening. This prevents hot coolant from getting to the the radiator where it is cooled. If the dealer...

This indicates the engine cooling system is low on coolant and will need to be topped off. The system should be inspected for leaks to ensure there are no other issues causing the engine coolant level to drop. Please note:...

This is most likely caused by the thermostat partly stuck open. The coolant sensor would need to be tested to make sure it is not bad, though. I would test the thermostat at the housing with a temperature tester, and...