My 2005 Suburban Z-71 w/ 5.3 was leaking coolant yesterday. It was coming from bottom of pump.
About two months ago I flushed the system (DIY) with Prestone Radiator Cleaner then some new Prestone Dex-Cool.
I do not believe the flush had anyting to do with the leak.
I was able to buy from a wholesaler an OEM water pump, T-stat, gasket, and lower AC serpentine belt (all parts OEM AC DELCO) for $203 including tax. Reasonable to me.
Tools needed:
Channel Lock Pliars
3/8" drive socket wrench
Drive extension
15mm socket
10mm socket
Flat head screw driver
Thats it, very easy removal and instalation. I believe the same tools are needed for all GM full size trucks, SUV's.
I even found a 2 part youtube video. VERY informative.
The inside of the pump looked clean with no scaling or gunk build up.
Good luck
About two months ago I flushed the system (DIY) with Prestone Radiator Cleaner then some new Prestone Dex-Cool.
I do not believe the flush had anyting to do with the leak.
I was able to buy from a wholesaler an OEM water pump, T-stat, gasket, and lower AC serpentine belt (all parts OEM AC DELCO) for $203 including tax. Reasonable to me.
Tools needed:
Channel Lock Pliars
3/8" drive socket wrench
Drive extension
15mm socket
10mm socket
Flat head screw driver
Thats it, very easy removal and instalation. I believe the same tools are needed for all GM full size trucks, SUV's.
I even found a 2 part youtube video. VERY informative.
The inside of the pump looked clean with no scaling or gunk build up.
Good luck