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Coolant leak

Tiny
GBEACH
  • MEMBER
  • 2006 CHRYSLER PACIFICA
Engine Cooling problem 6 cyl Two Wheel Drive Automatic 97k miles

changed the water pump and timing belt thinking the water pump was what was leaking. After changing still have the leak. Only leaks while sitting overnight. Does not leak while running. Leaking through a big cast opening hole which looks like it was designed to tell you what was leaking. 3.5liter
don't know what to check now.
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Wednesday, July 16th, 2008 AT 8:32 AM

10 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Can you describe where the leak is. (in the front, near water pump, intake, head...)

This guide will help

https://www.2carpros.com/articles/car-is-leaking-coolant

Please run down this guide and report back.
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Thursday, March 19th, 2009 AT 10:18 AM
Tiny
SILVERSEA
  • MEMBER
  • 1 POST
Same problem, we are 1500 miles from home - in SW Florida. Going back to my "old" mechanic. Thinking maybe I can buy antifreeze and make it home. Not sure what to do. 135K.
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Wednesday, September 13th, 2017 AT 8:30 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
There is a coolant pipe that runs under the intake manifold which is seals by an O ring. The intake must be removed to replace the seal. Here is a guide that will give you an idea on what you are in for and some diagrams to help you get the job done.

https://www.2carpros.com/articles/replace-intake-manifold-gasket

and

https://www.2carpros.com/articles/car-is-leaking-coolant

Please let us know what happens so it will help others.

Cheers, Ken
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Thursday, September 14th, 2017 AT 11:01 AM
Tiny
WORNOR
  • MEMBER
  • 4 POSTS
  • 2005 CHRYSLER PACIFICA
  • 3.5L
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 120,000 MILES
The cars heat gauge started to climb and kept going up. Pulled over, by then the car was steaming from under the hood. Upon checking, found that the top radiator hose had blown off. Replaced the hose and refilled the coolant tank. This time the car overheated again. The coolant tank was empty and steam was coming out of it. Bought a new radiator cap at the auto parts store. Refilled coolant and put new cap on. Drove car a few miles and the same thing happened. The cooling fans are working.
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Saturday, November 23rd, 2019 AT 2:02 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Hello,

It sounds like you have a leak or the engine has a blown head gasket, here are a couple of guides to help you see whats going on.

https://www.2carpros.com/articles/head-gasket-blown-test

and

https://www.2carpros.com/articles/car-is-leaking-coolant

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken

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Saturday, November 23rd, 2019 AT 2:02 PM (Merged)
Tiny
CAR4424
  • MEMBER
  • 36 POSTS
Check your motor mounts they will cause the hose to come off every time you step on the gas. Check your thermostat it could be stuck closed. Tape a thermometer or use a infrared thermometer on the upper radiator hose. Let engine run and watch the temp gauge when it gets near full normal running temp hold on to the hose till you feel coolant going through the hose, remove your hand and watch the temp the thermostat should open at 195 degrees and be fully open at 215 degrees. If the gauge on the dash goes any higher than normal shut the engine off and replace thermostat according to directions
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Saturday, November 23rd, 2019 AT 2:02 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Feel free to use 2CarPros anytime.

Cheers, Ken
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Saturday, November 23rd, 2019 AT 2:02 PM (Merged)
Tiny
CAR4424
  • MEMBER
  • 36 POSTS
Thanks
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Saturday, November 23rd, 2019 AT 2:02 PM (Merged)
Tiny
ASHFORD -88
  • MEMBER
  • 1 POST
  • 2004 CHRYSLER PACIFICA
  • 3.5L
  • V6
  • AWD
  • AUTOMATIC
  • 170,000 MILES
So I took my car to a repair shop and he told me my radiator hose had a hole in it. He replace it then called me back maybe four hours later and said my head gaskets was broken. I then had another guy look at it and there was no milky substance on the engine oil so he said it may not be my head gasket although the coolant container was really nasty, the coolant inside looked like a creamy Carmel what could be the problem it hasn't over heated so I'm confused
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Saturday, November 23rd, 2019 AT 2:02 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have th system pressure checked usually substances other than coolant are a good indication of a head gasket
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Saturday, November 23rd, 2019 AT 2:02 PM (Merged)

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