Netguy

I know I have a very slow coolant leak, even though, i never see any green stuff on the ground. today i went to top it up, and it was a tad frothy....couldnt really tell if it needed any, as when I went to top it up, it just brought the frothyness to the top.

Thanks in advance.

sara92max

I would pressure test the cooling system and find and repair the leak, becuase it sounds like you need to replace the coolant that is in it now.

Wiking

Check radiator visually and replace if leaking, dont wait to blow and warp engine heads.

If hoses leak, tighten clamps (originals do tighten 'automatically').

Old maximas had a engine block nut leak problem... see Nissan Tech bulletins, read stickies.

To get some extension miles, use leakage liguid quick fix. In the long run, its gonna be pricey...

Now you have air in your system. Air bubbles and uneven heating might cause engine damage: bleed the bubbles, drive one hour above 2000rpm with bleed valve or hose ajar (or see stickies).

Anyway functional system is always pressurized and leaking system is not, resulting into damage.

maxdout92se

mine went from frothy to some brown guey crap...almost like a lil gel!

Bill Brasky

iTrader: (2)

stop. driving.


now.

maxdout92se

WHY.....i've flushed it out and it never runs hot...i do need a new radiator though and ill be ordering that pretty soon

lalo

Temp guages proly broken..

maxdout92se

just had it replaced

DennisMik

iTrader: (2)

If you have foam in the radiator, there is something in there besides water and antifreeze. If you ever blow a head gasket and get oil in the water, you will have foam, an ugly brown foam.

maxdout92se

its strange....it is brown foam and when a mechanic looked at it, he was like you have the symptons of a blown head gasket, but your car doesnt run like you have a blown head gasket!! my car is actin real strange these days!!

Bill Brasky

iTrader: (2)

i'll bet 50 bucks that your mechanic is not thinking correctly.

it sounds as if you don't replace the fluids as often as you should (no offence). Since automatic transmission fluid is red new, one might not think about that. But, as it gets older.... guess what.

It's brown.

Check your tranny cooler in your radiatior. It's probably leaking a wee bit. The water pump will churn it up some causing the froth (IF your head gasket is A-OK). If it's not that, it's a blown head gasket. HOWEVER, it might not be blown from coolant jacket to cylinder but rather from coolant jacket to oil galley.

In either scenario, take off your heads and check them out. In the meantime, get a rental. Save youself some money.

Get back to me about my bet too.

sara92max

As I said before, do a pressure test to the cooling system, that will show were there may be problems. Look for leaks around the headgaskets if they are in question. Now, mind you, while you have the pressure tester on the car, you may have to get underneath it to find any leaks.

maxdout92se

my car has been havin this ish for a year now!!!