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98 Dodge Ram Strange Liquid Sloshing Sound

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New User

Dec 24, 2010, 10:34 AM

Post #1 of 4 (1489 views)
98 Dodge Ram Strange Liquid Sloshing Sound Sign In

98 Dodge Ram 1500 318 V8. Hi, I am a new user and here is stupid question number 1. When taking off from a stop light or sign I hear the sound of liquid sloshing coming from the dash area on the passenger side. There are no leaks and everything seems to be working fine but the sound has me concerned. It sounds like a significant amount of liquid. Please share possible causes. Could a layman make a repair?

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 24, 2010, 10:43 AM

Post #2 of 4 (1486 views)
Re: 98 Dodge Ram Strange Liquid Sloshing Sound [In reply to] Sign In

Probably hearing coolant flowing thru the heater core. Check that coolant is full at radiator and recovery and if cold has proper level of antifreeze.

Some use a restrictor to slow coolant and if hoses (likely) have been replace it may be missing. Those just were really to lower flow to not over pressure heater core with higher RPMs of engine. I've mistakenly left them out as some are hidden inside the hose and that one (one of my own) was fine but gave the sloshing sound.

Could be something else altogether too but do make sure coolant is full and if not WHY not!

Long retired now

New User

Dec 24, 2010, 10:48 AM

Post #3 of 4 (1482 views)
Re: 98 Dodge Ram Strange Liquid Sloshing Sound [In reply to] Sign In

Thank You!

Hammer Time
Ultimate Carjunky / Moderator
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Dec 24, 2010, 1:22 PM

Post #4 of 4 (1474 views)
Re: 98 Dodge Ram Strange Liquid Sloshing Sound [In reply to] Sign In

It depends if the sound is triggers by the motion of the vehicle or the RPM of the engine. If it is triggered by the motion of the car, then it could be condensation building up in the evaporator case and not draining as it should or it could be water collecting in the outside vent compartment but that would be freezing in cold weather.
If it's triggered by engine RPM, then I would go with Tom's suggestion.


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