Leaking

Asked by Feb 18, 2018 at 10:10 AM about the 2003 Pontiac Grand Am

Question type: Maintenance & Repair

I have a 03 pontiac i drive to work which has been
running hot. Thermostat has been changed
months ago and I'm about to change the heater
core which is overdue I'm sure. But now when i add
antifreeze it all completely runs out to the ground
and I don't see where. Any ideas what can be
causing the leak? I hope it's not a crack in the
engine block

2 Answers

41,995

Instead of a crack it might be a freeze plug. You'll have to crawl under the car to really look. Try clamping off both heater hoses, then refilling radiator. If no leak, then you know it was coming from heater hoses or heater core. If you still have a leak, check bottom rad hose or around water pump. If those are okay then you'll have to crawl up under there to see what's going on.

1 people found this helpful.
85,325

Sounds like the lower radiator hose to be coming out as soon as coolant is poured in. HTH. -Jim

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