If your heater core wasn't leaking at the time your radiator was replaced , then ( no ) That would be two separate jobs
Find another mechanic.
maybe your radiator is broken and you need to get a new one or just get a reparation if the radiator starts leaking when is in use it may be leaking because of the pressure of the water.
A leaking radiator hose would NOT cause this to happen, you have 2 problems with this vehicle.
Where is it leaking? That pressure test sounds funny, why would you pressurize only the pump and radiator? If you are leaking coolant outside the engine, locate the source. If you are losing it from the radiator but cannot find a puddle suspect a head gasket problem. Check the Radiator cap first, if it is bad high pressure coolant will travel back to the overflow bottle.
I would check the radiator coolant bottle for cracks and inspect any hoses to bottle.
the lead that goes to radiator came out, when l put back in would not hold and now leaking, water pressure was low and water is funny colour (kinda red)
Could be a heater hose, or lower rad. hose. If not I would dye test it. Autozone has a loaner kit. Contains fluro dye and a blacklight. Makes it very easy to track it to the source.
Are you overheating? If so,you may have a radiator that is plugged and needs replaced. It may just be too old and is leaking still needing replaced.Third,if you have a head gasket blown,it can push the coolant out of the system.You would have to check the compression to find this problem,not a hard one to diagnose either.
This would be caused by a leaking heater core, or a leak in the plumbing associated with it.
i would have replaced water pump long before replacing radiator. also check engine oil to see if it has engine coolant mixed in.if it has then the problem is more likely to be a bad head gasket
It is best to consult a mechanic about something like this because if you drive with a broken radiator then you are at risk of damaging the entire engine. I would say if the radiator cracked during a car accident then it is best to get a new one. There could be hidden damage that you only see once the old one has been taken out. There are lots of reasons that a radiator would be leaking. Speak to a reputable mechanic about the best way to go. You must weigh the cost of repair against the cost of replacement vs. the benefit. If the damage is due to an accident, insurance will likely decide if the radiator needs replaced or if it can simply be repaired.
Radiator or hose but probably water pump
Heater core would be the likely culprit here.
Leaking radiator radiator hose head gasket water pump Heater core thermostat housing
no the red clay like stuff is transmission fluid in your radiator probably leaking from your transcooler
I've had this happen to me before. I had the water pump replaced after it had been leaking a little and my car overheated. We thought it might have been leaking again but turns out the mechanics had forgot to tighten something. I would have them look at it once more to make sure nothing is loose and leaking your coolant.
I would start with checking all the hose clamps and hoses to make sure they are properly tightened and not damaged. Also check that the thermostat housing is not leaking along with the water pump. Especially if any of these were replaced when the radiator was replaced. Also check to see if drain cock is closed. Also make sure the overflow hose is correctly routed to the overflow tank. You might just have to run the engine and open the hood and see where the leak is coming from. Good luck.
MY 1995 DAKOTA got hot because the radiator was rusted out. The fins on the radiator would crumble just by touching it. Replaced radiator, problem solved.
A couple of reasons, faulty waterpump, leaky radiator, bad hose, bad radiator cap, thermostat housing.
Check your radiator hose
The lid seal is compromised. It'll have to be replaced.
There are several reason why a car might lose antifreeze. The water pump might be bad, one of the radiator hoses could be leaking, the radiator could have a leak, a freeze plug could be leaking, or it could have a blown head gasket.
Where is it leaking from? Could leak from the radiator, hoses, or water pump.