Whats this in my coolant

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Jun 5, 2014 | 02:33 PM

TuPapi22

Thread Starter

Junior Member

Joined: Nov 2013

Posts: 32

Likes: 0

Model: Cherokee

Whats this in my coolant

Alright so theres like this brownish milky stuff building up under my radiator cap what does this mean?

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Jun 5, 2014 | 02:43 PM

salad

Herp Derp Jerp

Joined: Nov 2011

Posts: 18,251

Likes: 17

From: Parham, ON

Year: 1999

Model: Cherokee

Engine: 4.0L OBD-II

It means your coolant is filthy. When was the last time you performed a flush?

Jun 5, 2014 | 03:20 PM

PurpleToxin505

CF Veteran

Joined: Sep 2013

Posts: 2,820

Likes: 5

From: Albuquerque, NM

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by salad

It means your coolant is filthy. When was the last time you performed a flush?

THIS!

Flush that ****, looks kinda gross

Jun 5, 2014 | 03:43 PM

CCKen

CF Veteran

Joined: Aug 2010

Posts: 8,357

Likes: 103

From: Canton, MI

Year: 1999

Model: Cherokee

Engine: 4.0

It's my opinion that you have oil in the coolant.

Could be a blown head gasket.

Have you checked the engine oil to see if its milky? look in oil filler hole on valve cover.

Jun 5, 2014 | 08:46 PM

travis99xj

Newbie

Joined: Apr 2014

Posts: 4

Likes: 0

From: eastern NC

Year: 1999

Model: Cherokee

Engine: 4.0

Yeah could be oil, oh and condensation can build up on oil cap or valve cover I've had them in the shop were it's on everything looks like snot that doesn't necessarily mean blown head gasket by the way. Change oil see if there is coolant in the oil you can also have coolant tested to see if there are any exhaust fumes in your coolant.