My 02 Blazer was overheating. I had new [radiator](/topic...


My 02 Blazer was overheating. I had new [radiator](/topics-radiator-chevy/) installed w new large hose on bottom. When parked after driving coolant leak underneath. 2 heater hoses replaced. Still coolant leak pooled on passenger s...

My 02 Blazer was overheating. I had new [radiator](/topics-radiator-chevy/) installed w new large hose on bottom. When parked after driving coolant leak underneath. 2 heater hoses replaced. Still coolant leak pooled on passenger side from heater hose. Took back tighten hoses. Still have coolant leak. Now mechanic say [water pump](/topics-water-pump/) need replacing. Can water pump cause coolant leak without car overheating? Mechanic's Assistant: What part of the Chevrolet is the leak coming from? And are you sure it's water? It's not water but antifreeze. Now the leak seem from middle under [engine](/topics-engine-chevy/). Mechanic's Assistant: Are you fixing your Blazer yourself? What have you tried so far? No, taken to Pep Boys Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Pressure test been performed several times by certified mechanic. Always say no leak.

Automotive Expert
Hello and thank you for using JustAnswer. My name is \*\*\*\*\* \*\*\*\*\* I will do my best to assist you. During this conversation you will be given an automated offer for a phone call. You may accept or decline that offer to continue our conversation. I’m sorry that you’re having trouble with your vehicle. I will do my best to help you resolve them. Please understand that I do not know your knowledge or capabilities, so I may need to ask questions to find out basic information to help solve your specific problem. Has the mechanic checked to see if there is coolant leaking from A/C heat drain tube to see if [heater core](/topics-heater-core-chevy/) is leaking? To answer your question yes the engine may not overheat from a water pump leak as long as there is enough coolant in engine, but as soon as enough coolant leaks out it will overheat again.
Automotive Expert
Have the mechanic put pressure on system and show you that the water pump is leaking. The water pump will leak from a small hole on bottom of pump and has to be replaced to fix the leak.

According to mechanic they have checked everything. I have taken it back 4 times. Yesterday they now said it's water pump. I had water pump replaced about 3 years ago.Pressure tested 3 timesThey didn't show me water pump leaking with pressure test.
Automotive Expert
Like I said before. Have the mechanic put pressure tester on vehicle and this will cause the coolant to leak from where ever it is leaking and then have them show you where it is leaking from water pump. You need to ask them to show you before since I have seen where a hose leaks and thought if was from water pump and it was only a loose hose clamp.

Thanks I will ask but they just want me to go away at this point. I spent $1,000 on new radiator. I'm contacting their corporate office.
Automotive Expert
If still getting a leak I would suggest you go to another shop to have test. Done and seek refund from pepboys.

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