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94 Fleetwood lt1 brown crud in coolant reservoir

Looks like mud ? What type coolant have you added ? Take the radiator cap off an look into it , do you see the same ? Have you ever had the cooling system flushed ? There was a problem with people adding green coolant to GM - Dex-cool ,orange ! Clog's the passages in radiator ,inside the engine , heater cores etc... Pull the oil fill cap on the valve cover an look at the under side of the cap , do you see brown frothy looking goop ? Coolant getting into the oil ! Why it called DexKILL

Sep 19, 2016 | 1994 Cadillac Fleetwood

2 Answers

2002 GMC 2500 6.0 Sierra runs hot with trailer or hill. 2 different fan clutches, new water pump, new thermostat, new coolant, belt has plenty of tension, radiator fins are clean, and hoses seem firm.

Just a thought. I replaced quit a few heater cores over the winter. Clogged up. The one thing I noticed they all had in common was the orange coolant. It leaves residue, Brown slime. Noticed it in the reservoirs first, then tore a couple cores apart and they were clogged from the same residue. I quit using the orange. went to the green global.

Jun 26, 2016 | GMC Cars & Trucks

1 Answer

Why is my coolant brown

The brown is rust. They did a poor job of flushing. It needs to be flushed with a good acid cleaner. If there are no leaks and it is cooling ok, it will not hurt to run with the brown anti-freeze.

May 07, 2014 | Hyundai Motor 2004 Sonata

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Oil in my water

At least not yet.
As you already know, brown coolant is usually a sign of engine oil leaking into the radiator coolant. Could be a gasket leak such as the intake or a head gasket, or the oil cooler if your car is equipped.
You said the warning light was on, was the radiator coolant level low ?

Feb 10, 2013 | 2002 Audi A4

1 Answer

Why whould antifreeze be brown?

its brown cuz the motor is metal and it rusts internally when sitting for periods of time, reccomend a coolant flush where they use a chemical to clean it out. it may not be shifting cuz the transmission cooling line runs thru the radiator and may not be cooling right due to a clog or obstruction in line. who ever flushes it should be able to check that for you.

Feb 28, 2012 | 1997 Chevrolet Suburban

3 Answers

Hi my name is Heath. I have a 1990 Ford Bronco. The other day after i drove it home, I pulled in the driveway and turned the engine off. I got out and heard a hiss so i opened up the hood and I saw brown...

A flush and a thermostat is never a bad idea, but it sound like your radiator cap is worn out, not holding pressure, replace it, should have a 16 lbs rating radiator cap.

Aug 23, 2010 | Ford Bronco Cars & Trucks

1 Answer

I dont have heating in my passat gls 2002. any

do you have a 2.8 v-6. If so i hate to be the bearer of bad news but most likely it will be a clogged heater core. Take a look at you coolant bottle reservoir is the coolant a dark brown crusty color? If so that means that all the build up from the bad coolant has plugged your heater core to the point that it is not flowing anything thru it. That will be about a 1000 dollar repair. sorry for bad news

Sep 10, 2009 | 2002 Volkswagen Passat

3 Answers

Where can i release old coolant from the tank and replace it with new coolant? More than a few months back i added a "stop leak" solution to the coolant tank bc i was putting coolant in my car almost...

buy a drain pan,drain the liquid and take it to your local steets and roads department,they have a recycle center there for free in domestic amounts.

Aug 13, 2009 | 1996 Ford Contour

1 Answer

2000 Monte Carlo SS (89,000 mi)

That slushy brown stuff is signs of a blown head gasket. Have a code scanner hooked up to find out why the light is on, it will probably show coolant temperature sensor. Just out of curiosity, check the pvc valve (if your car has one), and see if it's clogged. If it is replace it, the crank case is not getting ventilated.

Jan 30, 2009 | 2005 Chevrolet Monte Carlo

1 Answer

No heat

if engine temp is normal after running awhile. i would try to flush the heater core.(disconnecting the heater hoses from engine and flushing separately) ford cars and trucks have a "brown coolant" problem and the coolant will eventually clog heater core.

Dec 13, 2008 | 1999 Mercury Sable

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