coolant back flush

[elantra_mann84]

hi all i just bought the prestone coolant back flush kit and i was wandering were my heater inlet hose i have a 2003 gls thanks a pic with an arrow would be the most help

-andrew

[elantra_mann84]

well i found the lines thanks to no one on here and i was now wandering if it is safe to put cool water into there or will my block crack or my waterpump housing break thanks

[dasBEBEN]

only if your engine is cold can you do that. Make sure its not not even a little warm and you are fine to do the flush.

[elantra_mann84]

ok bacause i was a little worried due to the fact they say
start engine and let run at idle during flushing process.set heater control to high.back flush system untill water runs clear from splash tube.

[dasBEBEN]

if your engine is running and you dont introduce the cold water too quick you are fine. Just dont drive for an hour, hop out and start doing it immediately.


The same rule as adding coolant to the radiator...If the engine is hot, you have to have it running while you add fluid or your gunna be in trouble.

[elantra_mann84]

thanks soo much i kinda had a hunch but was not sure so this helps me alot i have had the car 2 years now and have not had it done so i feel it is time