Ok, about 25 days ago i braught in my car to my honda dealership because it was overheating. I told them that one of the radiator fans was not working. they replaced the fan switch relay and while they were in there they decided to replace the thermostat as well.

Well after about a week i noticed every now and then it would still overheat. People told me its normal in the summer at stop lights. A few weeks later i notice its still happening and its cooler temperatures outside. I look at my Radiator fluid while the car is turned off. Nothing outa the ordinary... But when i start the car... all the liquid in the resovoir turns Dark grey.

I looked at my receipt for the last trip to the honda dealership and noticed it says they replaced my coolant. If this is so, can all of whats in the resovoir turn nearly black after 2-3 weeks?
what exactly is this mystery juice?
Is my car endangered?
should i drop it off just in case?
or should i just get it flushed and see if it continues?

any help would be greatly appreciated
tyia

 

seeing as you have a receipt and you said it was a dealership that did the work. there is only one thing you need to do take it right back to them and have them explain it to you. dont do the flush or pay anyone else to do it for you. coolant shouldnt turn that fast.

 

is it choclate milky?

 

take it right back!

 

take it back, it doesn't sound good. coolant should never change color, well, over time it sometimes becomes a slightly milkier shade of green, but it should -never- be black or brown (rust or oil depending, and neither is a great sign).

Further, Honda cooling systems are very efficient for regular street driving, even in high heat (100 degree weather around here lately), I've never had a problem with the car running hot.... even sitting still for long periods of time, just the fan kicks on a lot more.

Nathan

 

Black coolant = oil in coolant and that means blown headgasket

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92Lx &raquo;</TD></TR><TR><TD CLASS="quote">take it back, it doesn't sound good. coolant should never change color, well, over time it sometimes becomes a slightly milkier shade of green, but it should -never- be black or brown (rust or oil depending, and neither is a great sign).

Further, Honda cooling systems are very efficient for regular street driving, even in high heat (100 degree weather around here lately), I've never had a problem with the car running hot.... even sitting still for long periods of time, just the fan kicks on a lot more.

Nathan</TD></TR></TABLE>

x2, I drive a swapped hatch with a single core right now, and on 100+ days even in stop and go the car never over heats.