Water dripping onto the floor on passenger side below the dash broad
I have a 1999 Pontiac Grand Prix and when I use the a/c, water drips on the carpet on the passenger side of the car. I believe the condensation/water that dripps from the cooling coil is the cause of the problem. Is there a drain hole that is plug and where is it located and how do I clear it?
An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert who has written 20 answers of more than 400 characters.
An expert who has answered 20 questions.
Re: Water dripping onto the floor on passenger side below...
Under the passenger side of the vehicle, near where your feet are, should be a drain tube. This get clogged from time to time by road grime and usually insects, so carefully use a small screwdriver to clean it out. If this clogs, the A/C system cannot remove its own condensation and it backs up into the car.
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need. Goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Does your car have a sun (or moon) roof? A leak in a sunroof will sometimes follow the roof over to the door post and down to the floor were the water will accumulate. This can be hard to find sometimes but having one person spraying water on the roof while a second one checks the inside of the vehicle you may be able to pinpoint the leak. Hope this helps.
Is there coolant leaking inside the car? Check the floor under the passenger side dashboard. If the carpet is wet your heater core is leaking.
If the floor is dry check the coolant elbows going from the block into the automatic belt tensioner. That's inside the engine compartment. They are notorious for leaking. You may not be able to see the leak because it drips onto the block and evaporates. That's what the smell may be.
Search google images for "3800 series 3 coolant elbow" to see the part I am talking about.
The only way to find a coolant leak is to pressurize the cooling system. You can rent a coolant pressure tester from an auto supply store. Pressurize the system and look for leaks. You may have a leaking water pump.
The elbows can be purchased from the dealer. The water pump you can get from an auto supplier. Might as well change the thermostat while you are doing the other repair. Drain the cooling system and refill with fresh dex coolant.
Make sure you bleed all of the air out of the system or the car will overheat.
You can only have 2 issues dripping water onto the passenger floor board. First being a clogged drip line for the ac evaporator. The other is a leaking heater core. Figuring out which one is the issue is fairly easy.
If your vehicle has anti freeze in it when you turn the defrosters on it will smell sweet. If it does you have a leaking heater core. If it does not then the drip line is clogged.
To clear the drip line get under the vehicle and snake the drip line on the firewall. It usually is a 90 degree rubber or plastic piece on the passenger side about a third of the way up the firewall. A leaking heater core means it has to be replaced and not really a job for someone that is not exsperienced.
Your AC drain is clogged. If you look near the floor under the dash on the passenger side you will find a small rubber hose that goes thru the floor board. Take the hose off and clean it out. You will find that it is clogged with dirt. Once it is cleaned out hook it back up under the dash. You will notice that if the car is running with the AC on, you will be able to see water dripping on the passenger side under the car that will mean you cleaned the hose out and it is working.
If leaking coolant under dash on passenger side floor broad it's your heater core. Call's for 2.8 labor flat time to remove heater core, in some case's you'll have to recover, evacuate and recharge your A/C system to remove your heater core.Sit under dash on passenger side.
The heater core would be the only cause of the souce of water drippng when you add to the cooling system. Check your heater core to heater hose connections first. Do the simple stuff before embarking on a "fantastic voyage". You may just have a slightly cracked hose as well.