no pressure in the cooling system water pump is noisy and leaking

1995 DODGE CARAVAN
125,000 MILES • 3.0L • 6 CYL • FWD • AUTOMATIC
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RH309WV
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No pressure in the cooling system. I know the water pump is going bad because it is making a rattling noise and beginning to leak. Would this be the cause of no pressure in the system?
Dec 21, 2016 at 11:42 AM
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STEVE W.
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The pressure cap is responsible for holding pressure in the system, however a leaking pump will not let it.

On that engine it is really not a good idea to let the pump leak, tends to damage the timing belt.

I would drain the coolant, run a flush through it (no reason to run the flush on the new pump) Then change the pump and timing belt (has to come off to get to the pump) Change the thermostat and the pressure cap. Top up with fresh coolant and enjoy a rattle free ride.
Dec 21, 2016 at 3:05 PM
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RH309WV
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  • 6 POSTS
Thank you. that is what I was thinking, but I was not sure. I appreciate your response and help.
Dec 21, 2016 at 10:53 PM
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STEVE W.
  • ✓Experienced Mechanic
  • 15,362 POSTS
You are welcome, Please use 2CarPros for any automotive questions.
Dec 22, 2016 at 12:15 PM
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