water pump leak, faulty??

fongo · 04-13-2006, 08:10 PM

Hi everyone. I noticed shortly after putting a high performance alternator (96 A) on my 93 GT, I began to notice the car temperature gauge was above 220C (all the way up) just by runnign the car idle after a few minutes. After inspecting under the hood, i noticed a leak from the lower radiator hose (into the water pump). I checked the hose and it looks fine (make sure it was tight also). The radiator is clean and no leaks (haven't done a pressure test though hmm..). I've also replaced the thermostat (although it seemed fine). Also after I turn off the engine, I hear a 'boiling' sound coming from underneath the thermostat.
I need some guidance on finding out if I need to replace the water pump or not, or is it something else.
Thanks.

fongo

1989GT · 04-14-2006, 11:29 AM

There's a weep hole on the bottom of the water pump that will start leaking antifreeze when the pump is on it's way out, may have looked like it was coming from the lower radiator hose though. Also the boiling sound is probably air trapped in the system.

04-13-2006, 08:10 PM	#1
fongo Registered Member Join Date: Jan 1999 Location: Farmingdale, NY Posts: 139	water pump leak, faulty?? Hi everyone. I noticed shortly after putting a high performance alternator (96 A) on my 93 GT, I began to notice the car temperature gauge was above 220C (all the way up) just by runnign the car idle after a few minutes. After inspecting under the hood, i noticed a leak from the lower radiator hose (into the water pump). I checked the hose and it looks fine (make sure it was tight also). The radiator is clean and no leaks (haven't done a pressure test though hmm..). I've also replaced the thermostat (although it seemed fine). Also after I turn off the engine, I hear a 'boiling' sound coming from underneath the thermostat. I need some guidance on finding out if I need to replace the water pump or not, or is it something else. Thanks. fongo __________________ 1993 GT, MAC Fenderwell Cold Air Induction; Accel dist.,Splitfire plugs, BBK: 1 5/8 unequal length shorties, hi flow H-pipe w/ cats; Flowmasters 2 chamber American Thunder catback system, Motorsports 3-core radiator, 180º thermostat, BBK adj. clutch quad...the rest is bone stock!..but more mods to come!!

04-14-2006, 11:29 AM	#2
1989GT Registered Member Join Date: Apr 1999 Location: Cincinnati,OH Posts: 1,511	Re: water pump leak, faulty?? There's a weep hole on the bottom of the water pump that will start leaking antifreeze when the pump is on it's way out, may have looked like it was coming from the lower radiator hose though. Also the boiling sound is probably air trapped in the system. __________________ 89GT,Pro-Bullet 306, H/C/I and a bunch of other stuff. Sold 00GT, Vortech S-Trim, Steeda Boost Pipe, C&L intake, Mac off-road H-pipe, Flowmasters, B&M Ripper shifter, Eibach Sportline springs, Koni Struts/shocks, MM full length subframe connectors, Cobra brakes, 3.73's. My Car Domain Page

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