![]() So now 2 weeks later I have a medium leek that seems to worsen when the vehicle is started/pressurized. Ran the car for about 45 minutes with the funnel set from Napa to rid air locks.įor about 3 days to follow I didn't notice a leak per say but I went from a constantly fluctuating temp gauge to a gauge that didn't come passed the 3/8's mark once, except the one time passed half a little when I was bleeding the air locks on first start-up. I took the day and replaced the tensioner elbows with aluminum elbows, installed a new bosch water pump, replaced the thermostat 180F. I knew I had a leaking water pump, discovered also leaking tensioner elbows. AC problems are always best left to your professional mechanic.I have a 2007 Grand Prix 3.8L SC with 117000kms. ![]() Never attempt to replace a hose that is connected to the air conditioner in your Grand Prix - these hoses contain refrigerant that is under pressure and can blind you. The video above shows you where coolant hoses and coolant reservoir on your 2004 Grand Prix GT1 are located and the steps needed to first minor leaks. In addition to looking for cracks, analyze the brittleness or squishiness of the hoses in your Grand Prix - if the hoses are hard to squeeze or squeeze very easily, it's time to replace them. In 2004 Grand Prixs with the 3.8 liter engine, coolant leaks are most likely to occur where the hoses connect to the engine, but it can also leak from the reservoir or from the hoses. You can avoid getting stranded by identifying signs of extreme wear before they break and fixing minor leaks promptly. ![]() The hoses carry engine coolant (which is also known as antifreeze or anti-freeze) through your engine and will eventually wear out. The video above shows to fix minor leaks in the coolant hoses in your 2004 Pontiac Grand Prix. ![]()
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