Skip the auto shop - Our mechanics make house calls

Q: After replacing many cooling system parts on my 2000 Plymouth Grand Voyager there is residue in the cooling system and a leak

asked by on

We just replaced the radiator, water pump, thermostat, heater core and hoses (all new parts) because our van was overheating and had transmission fluid in the radiator, but now there is brown stuff in the radiator and a stream of water ( Pen size stream) is leaking (which it wasn't doing before)

My car has 199086 miles.
My car has an automatic transmission.

Hello. If there was transmission fluid getting into the cooling system previously then it will take some time to get that oil out. It may take several flushes to clean it as long as there are no other issues. As for the leak, the only way to know where the leak is coming from is to pressurize the cooling system. Once it is pressurized you can easily locate the source of the issue. If you need to have this checked out, consider YourMechanic, as a certified mechanic can come to you to [diagnose where the cooling system is leaking] https://www.yourmechanic.com/services/coolant-is-leaking-inspection

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • After replacing many cooling system parts on my 2000 Plymouth Grand Voyager there is residue in the cooling system and a leak

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Is there any way I can bleed brakes without a scanner or special tool? Thanks!

Hello. If you are not able to get pressure to come to the calipers, you will have to use a scan tool to activate the bleed function of the abs. Otherwise, you will not be able to get fluid out...

Q: Recently purchased car can't pass a smog check

Hello! I would definitely advise having a basic inspection done before the vehicle is driven on a long trip. Any qualified mechanic, such as one from YourMechanic, will be able to inspect your misfiring issue and let you know if...

Q: Van is making two types of sounds.

Hi there. Check the drive belts are they are squealing when the vehicle is started. The belt could be worn and stretched or the tensioner could be worn or damaged. For the racecar sound, there is a hole in the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.