I have a leak on left side front what could it be?

Having worked on several cavaliers this year, I have found a tune up took care of the rough running condition, and all of them had valve cover oil leaks.
So consider replacing the valve cover gaskets and the spark plugs.

Have you looked under the hood? (I don't mean to sound like a wise guy.) There are two shiney metal pipes one on the front of the engine and one on the rear as you look at it from the front. They run from right to left on the engine. These are the fuel racks that feed the fuel injectors, (assuming that you have a 3 litre or larger v6 engine). These can concievably rust at the left, (passenger), end and blow gasoline out the passenger side. It is also possible that gas could be leaking anywhere on the engine and roll off the passenger side of the engine or if the fuel line on the driver's side has rusted over a cross member of the frame and possibly roll to the passenger side. Also, there is pretty good pressure on the fuel line when it is running. If there is a rust hole on the right side of the line itself, it could spray to the passenger side, hit something and drip off from there. These are just possibilities. Good luck. Jeff M.

If it is near the tire it is brake fluid. The brake fluid reservoir is back by the firewall driver side of engine compartment. Your car uses DOT 4 brake fluid.

it is probably coming in through the firewall some where after being splashed up by the wheels check behind and above the left front wheel for holes

bad steering problems,,your steering rack most likely,but,have you recently been stuck in ditch? when wheels are straight, look at front of car when parked. do wheels look funny? one going one way, and the other going the other? may be alignment. is it leaking any fluid on either side of the front of the car? drivers side? passenger side? if it's not out of alignment,,,wheels out of alignment,,the steering rack is the problem. it may be faulty. if not leaking fluid,it may still be bad. first i would make a visual test look under the vehicle while someone turned the steering wheel to right and left while car is in park,emergency brake on!! look at the steering arms while they turn the steering wheel from right to left. no fluid leaks? any resistance in turning the wheel? any leaks,if so,go to leak and repair with steering line replacement.no leaks? suspect a bad steering rack. hope this helps and thank you for choosing fixya.com i love to volunteer

is your water pump on that side? if so i would say your water pump is bad.

yes, why is sensor not moving , did it unhook ,if so hook it back up, also the air back might have a hole, start engine and listen for an air leak at left rear, if hissing noise is heard then spary bag to see if leak is on bag if so replace suspention bag hope this helps good luck,

i doubt very much wether the block is cracked it is more likely to either be a heater hose may be leaking or a welsh plugs ( little round dish shaped plug ) in the side of the block i would first check all the heater hoses and the look on the side of the motor for a possible welsh plug leak i'd say its hoses tho

well, from what you told me, more then likely it's the thermostat housing gasket is shot, or the hose connected to the housing is loose.

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