bob1459

Has anyone every heard a gurgling sound or the sound of water running when you first startup that day? I usually hear it when I actually step on the gas for the first time for about 10 seconds or so and then its fine while I drive. I flushed out the system with a flush machine and the thermostat removed. I flushed with a cleaner and about 12 gallons of hot water and then filled back up with Dexcool and it seemed fine. Now that I have a waterpump leak I hear it again worse than before. Any suggestions beside fixing the waterpump which I will be doing shortly anyhow.

Bob

nige84

I have always had that sound since I bought my 2000 blazer in 2003 from GM Optimum. A friend who is a mechanic told me that was normal for these vehicles however my heater core just went. Probably unrelated??? Wow these things are a nightmare to change.

ZL1power69

this thread is almost 4 years old. please don't post in old threads

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2000 Chevy Blazer ZR2
Performance: AEM intake, TB mod, ported stock y-pipe w/precat deleted, 3in catco cat, 2.5in Flowmaster 40 DF,
March pulleys, MSD SF ignition, Taylor 8.2 wires, Transgo shift kit, Corvette servos, B&M trans cooler.
Suspension: Knaffle 1.5in lift shackles, 1.25in rear wheel spacers, 31in BFG AT's
Exterior: custom ZR2 decals, bug guard, vent visors
Interior: Lanzar headunit w/ ipod input, Pioneer speakers, Scanguage II

http://www.cardomain.com/ride/3013891