sier for you to answer--"I smell antifreeze when I start the engine."
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2005 Chevrolet Silverado 1500 Question: I just submitted a question about leaking antifreeze. Maybe this will make it ea
Answer #1pushrod June 15, 2013, 23:36Master
Replace the water pump. I can see it leaking from here!
Replykimkingtaylor, June 16, 2013, 00:00Rookie
the water pump will cause me to lose antifreeze?
Replypushrod, June 16, 2013, 02:38Master
Yep, when it leaks it will, every time!!! Check radiator also.
Look very close, hard to find at times..even under pressure test!!
ReplyChevyASE, June 20, 2013, 06:29Journeyman
Like pushrod said, we can see the water pump leaking from here! GM 5.3L = Water Pump leak!
Replykimkingtaylor, June 20, 2013, 06:42Rookie
Bypassed the Heater Core. No more leak.
Replypushrod, June 20, 2013, 06:45Master
Ok. No more heat either but you wont need that for awhile!
Replykimkingtaylor, June 20, 2013, 06:59Rookie
Nope not in Houston, TX! 104 yesterday.
Replypushrod, June 20, 2013, 08:39Master
Crap! Ac ok? These 5.3 engines are just famous for mystery H20 leaks and most of the time it's the pump or rad. A little unusual for the core to leak. When you get it fixed use good old fashion antifreeze, not Dexcool.
Replykimkingtaylor, June 20, 2013, 09:09Rookie
A\C blows artic cold. I was told I had to use Dexcool and not to change it. What's up with that?
Replypushrod, June 20, 2013, 09:19Master
That is just a bunch of B.S.!! After working on these GM vehicles and seeing the effect of Dexcool, first thing i did, after warranty, on my Blazer is flush that crap out and replace it with the old green stuff. Google Dexcool, look around a bit and you will see, i think. Probably the reason your heater core is leaking!