[Higgy]

Noticed a drip of antifreeze , I think, from under the dash on passenger side. I think that is where the AC lines come into the cab. Anyone else have this happen? AC runs fine and pressure is stable.

 

[cheapskate]

Anti freeze and AC dont run together but your HVAC does have both AC and coolant lines going to it. Possible you have a leak at one of the clamps but hopefully is not the heater core. That being said are you sure its coolant and not just dirty water from the ac drain port backing up?

 

[Higgy]

The water is definitely green and looks just like antifreeze. You are right about the antifreeze lines and ac not sharing. I’ll check the drain port. Good idea.

 

[cheapskate]

Toyota uses pink coolant. Not to say someone didnt switch yours over but are you sure your truck has green coolant in it? If it has green coolant and you are still sure its a coolant leak get a flash light and prepare to contort yourself into multiple bizarre positions to follow the coolant lines in and out of the HVAC and check for leaks. And dont forget to turn the heat on while your doing it.

 

[Higgy]

Toyota uses pink coolant. Not to say someone didnt switch yours over but are you sure your truck has green coolant in it? If it has green coolant and you are still sure its a coolant leak get a flash light and prepare to contort yourself into multiple bizarre positions to follow the coolant lines in and out of the HVAC and check for leaks. And don't forget to turn the heat on while your doing it.

Thank you. I've only had my truck serviced at Toyota so I would assume the coolant will be pink. I will definitely give it a look again. I appreciate the assist.

 

[Rayland]

as above check for leaks but I have also noticed small drips on passenger footwell in 2002 Sequoia on long hot trips (generally over 4 hours) the drip however was clear and was condensation on the air conditioner components over the passenger footwell. after several checks of the drain port in the firewall proved open and unproductive, cured problems with insulated tape wrapping as much of the exposed plastic that I could get to. Agree with post above that Toyota antifreeze is pink but check if someone serviced it with other brand.

 

[g1987adams]

Visiting an aircon service shop is a great way to maintain the good performance of your cooling appliances. I visited ours recently and they said my aircon is in tip-top shape.