Timing is merely coincidence. There is no way to get brake fluid into the heater system. (unless someone poured some in there....)

 

Just curious. What's your level of experience working on vehicles? How well versed are you in the different systems?

I ask, because you're basing your conclusion on a causation versus correlation fallacy.

 

The cylinders in rear brake drums could be another hidden leak, but seems like a more significant leak. Fill, bleed and inspect the most obvious places already mentioned. And +4 that you have two separate problems, the mist on windshield interior is from leaky heater core.

 

I'm a 17 year old "kid" who has been trained in the basics. That being brakes, suspension and basic engine components. I enjoy working on my own truck and learning how it works, it makes me feel good that I'm able to do it. And if belittling me makes you feel good you go right ahead. As for everyone else, I appreciate the help. I just replaced the heater core myself in under 4 hours(which id say is pretty good) but what do I now...

 

front reservoir is for rear breaks so look at the rear lines mainly the flex line and wheel cylinders because you said it leaked slow the hard lines usually leak fast

 

Pay special attention to the line that runs over the gas tank though..... it is notorious for rusting out... before it breaks completely, and you get a RUDE surprise.

 

OK. Chill a little. He was referencing your immediate dismissal of the idea that two unrelated problems happened at the same time. There is no connecttion between the ac vent systems and brake system. Coincidence is possible...


Did the heater core you took out look bad? Did that fix your problem?

 

Thanks, i will be checking all drums tomorrow for leaks, as well as lines.

 

Get a flashlight and look real good next to the gas tank. That line only needs a pinhole and sometimes the fluid will stay up on the frame rail.

 

You won't find a forum with as many experienced helpful people as here on DF, Including VW. And the problem is always more urgent when it's happening to our own truck.That being said, it helps if you fill in your signature with basic information about your truck and include other recent repairs. And feedback, like did the heater core you just replaced take care of the foggy mist on windsheild? Because that might help someone else down the road who has a similar problem. And good luck finding that leak.