dex cool coolant good for pontiac grand prix

#Dex cool coolant good for pontiac grand prix full

You can also pull the heater core hoses off the back of the engine, and flush it both ways with a garden hose. Waiting for the fans to come on means its hot enough that the T stat should be wide open. Then idle the car rad cap off till the fans turn on, then bleed the air out of the t stat housing, top off the rad as needed as it warms up, if it burps and the rad level drops, the T stat opened up for a a few seconds and took the coolant, the cold water from the rad made it close again. So we went in to do some more research on Dex-Cool and came across this video from the engine experts over at Mahle.

#Dex cool coolant good for pontiac grand prix full

then put the T stat back, the upper hose back, then dump one gallon of straight antifreeze in the rad, start the car full the rest of the way with hose water. Dex-Cool Antifreeze Coolant was introduced by GM in the 1990s and promised super-long coolant maintenance cyclesbut suffice it to say, the antifreeze wasn’t an immediate hit. put the hose in the rad, fill it up, then start the car, run it till clear water comes out the upper hose, then turn the hose off, then run the car till no water comes out the upper hose. Some say Dexcool due to the chemical make up and incompatibility of other brands of coolant and some say use Prestone or what ever brand. Good to goĭonthis works well, but if you put the lower hose back on, leave the T stat out and the upper hose on the housing, and off the rad.

Installed new thermostat and closed it all up. Then added 50/50 mix until it flowed out of intake. Dex-Cool Antifreeze Coolant was introduced by GM in the 1990s and promised super-long coolant maintenance cyclesbut suffice it to say, the antifreeze wasn’t an immediate hit. Sludge build up in the dexcool system is very common, but the first thing to do. The only way to get it back to extended life will be to flush it again with dexcool.

Greetings, You do not have to do anything right now, green antifreeze will mix with dexcool, but the extended life will be gone. put the lower hose back on the rad and added 1 gallon of 100% coolant. Answered in 6 minutes by: Pontiac Mechanic: BigBob. I then rinsed out the radiator same method, both directions, until crystal clear. Used a small nozzle and flushed the heater core and hoses going both directions. Once it ran crystal clear I disconnected the heater hoses. Reversed the flow by shooting the water through the lower hose so it came out the intake. Head gaskets seemed fine, no cylinder pressure in the radiator or coolant in the oil/vice versa. Optional parts include a new radiator cap, a new. Used a hose nozzle wrapped in a rag and inserted it into the intake where the thermostat sits. So far, I've replaced the heater core (box was full of coolant and it smelled in the car), and just finished fixing the leaking lower intake gaskets today using the steel fel-pro ones (FUN). Other items needed are a gallon bottle of DEX-COOL approved antifreeze/coolant and a gallon of distilled water. Removed the thermostat housing and kept it attached to the hose. Removed the lower radiator hoses from radiator.