I have a yellowish clear fluid puddling under my 99 Grand Am. The coolant is pink and so is the windshield cleaner. It's not oily. What could it be.

hi Kemal.

1. Park your vehicle overnight on a clean patch of pavement or a large, clean piece of white paper.Either tape some sheets of paper together or buy a roll of plain white commercial wrapping paper. Newspaper is too absorbent and can change the color of the stains.
2. Place marks on the paper.
   Show where each of the four wheels is resting, and indicate the front and rear ends of the vehicle.
3. In the morning, move the vehicle and look for small puddles or traces of liquid on the ground or paper.
   Touch and smell each puddle or trace of liquid.

Here's how to decipher the evidence:

• If it's clear, watery, and under the air conditioner: It's probably normal condensation if you've used the air conditioner recently.
• If it's black or dark brown, greasy, and located under the engine area:It's probably oil. Figure out which part of the vehicle was over the spot. Look under the hood around the oil filter and the engine and under the vehicle for leaks around the oil drain plug, the crankcase, and the oil pan below it.
• If it's thick, black or tan oily liquid: Gear oil may be leaking from a manual transmission, the differential, an axle, or the steering gears. Any of these leaks needs immediate attention.
• If it's red, pink, or reddish-brown and greasy and you have an automatic transmission: It's probably transmission fluid. Check the transmission dipstick, and if the level is low, top it off with the proper transmission fluid. Then check the dipstick again in a day or two. If it's low again, have a professional check the transmission to make sure that the seals are intact.
• If it's watery or slippery; green, red, blue, or yellow; and is coming from under the radiator or engine: It's probably coolant. Check the radiator, pressure cap, engine, and hoses for leaks.
• If it's oily; pink, red, or clear; and you find it toward the front bumper (usually on the driver's side): It's probably power-steering fluid. The power-steering system is sealed and shouldn't lose fluid. If it's a light-colored or clear fluid: It may be brake fluid. Even if the leaks have dried, the stains should be visible. Leaky brakes are too dangerous to leave unattended. Have a professional repair any brake fluid leaks immediately.
  
• If it smells like rotten eggs: It's battery acid. Avoid getting it on your hands or clothes and have the battery replaced.
• If it smells like gasoline: It probably is! If the smell is coming from under the hood, check around the fuel pump and the fuel injectors - or the carburetor if your vehicle has one. If the leak seems to be under the center of the vehicle, check the fuel lines. If it's under the rear end, check the fuel tank.

your transmission fluid lines run thru the radiator's transmission cooling cell. When the radiator springs an internal leak, it contaminates the trans fluid with coolant/water mix, giving it the milky pink appearance. Replace radiator and flush transmission.

Maybe it is transmission oil . If it is coolant change the coolant bypass hose and upper main hose for a start .

POSSIBLE A/C DRAIN, DO YOU NOTICE AFTER YOU DRIVE WITH A/C ON... DOES FLUID HAVE A SMELL OR OILY FEEL?

The question is what color is the fluid. If it is yellowish and oily its going to be power steering fluid. If its red or or green and watery its coolant the only other thing would be gas or windsheild washer fluid. Check front driverside brakeline as well just to be safe

The only "pink" fluids are:
1. Transmission fluid 2. Power steering fluid 3. Some types of washer fluid (rare) 4. Some types of AntiFreeze-Coolant are red, although most (80%) are lime or yellow/green.
The most common fluid leak from the head is coolant and is usually form a gasket leak. You say heads as in plural, which I take to mean a V6 engine. But since having both head having a leaking gasket is remote I assume that there was a typo and you are referring to one head.
Are you loosing fluid from the radiator and/or having overheating problem, then suspect the head gasket, It is a major repair.
Post comment with additional info, ie exact location of fluid and how much. Is it leaking to the floor? When does it leak the most, standing cold or engine running hot? Doesthe fluid feel oily or more just like water?
J

LOL............. NOT SURE ALL FLUIDS HAVE A COLOR. MOSTLIKELY COOLANT????

The condensation line can be cleared from under the passenger side of the car just behind the front tire, it can be done with a vacuum cleaner, But this doesn't sound like an ac issue, it sounds like the heater core is leaking.If you check your radiator fluid and it's getting low or that is the fluid in which you are talking about then this is the heater core and not ac related. The ac doesn't use liquid that is changable but rather a gas called refrigerant.

Air conditioning is the correct answer if the fluid is clear and looks like water. If it is orange or pinkish in color it would be coolant. It would also have an oily feel to it.

I am guessing that you may have mold (green) in the water coming from your Air Conditioner or from the water channels where the water flows from the car vents to the ground. Usually green is the coolant. Could also be a prankster the poured some lime flavored pop/soda under your car or one leaked in the trunk? Did someone else park there and you are seeing their leaked stuff? Without more info, this is just wild guesses. Where is the leak seen - inside the car? under the engine? floor of a garage? outside in the street? Maybe even windshield washer fluid was that color if it spoiled?