The tapping noise while warming up in the Grand Am GT's is nothing to worry about. These vehicles have the 3.4 Liter V6 engine and due to the design of these engines, it is simply oil entering the engine that causes this sound. If you noticed once it is warm the tapping ceases. Like I said need not to worry because this is common.
I would not be driving this vehicle for a couple of reasons. If you are loosing coolant on a continual basis, regardless of how much is lost, it has to go somewhere. If you do not see any pooling under the vehicle, then it is leaking inside the engine. If the latter is true, then coolant in the engine will dilute the oil, and create a cloudy oil residue, or if you are getting oil into the coolant, you will see a 'rainbow' on top of the coolant in the radiator or overflow. The tapping, I think, from the limited information, is the Valves not getting the Oil due to low oil pressure. Once the engine warms up, and the Oil pump starts to flow the oil, the tapping stops. Many vehicles, especially GM and Chevy do this. I would not be overly concerned about the tapping, but I would be concerned about the coolant leak. An easy way to see if you have an external leak is to go to a local parts store, and purchase a leak test kit, which usually is a dye, which can be seen with a blacklight. Kids love helping at night with this! Good Luck it might be your water punp you need a stronger one. or nr oil too the head Adding to answer: Take vehicle to repair facility and have a Carbon Block Test done,it will also determine if Carbon Gases are entering the coolant system.As far as the tapping, switch to synthetic oil,it costs about twice as much but is well worth the expense. http://www.autozone.com/servlet/UiBroker?UseCase=S001&UserAction=viewSimpleDiagInfo&Parameters=info answer does the noise go away shortly after starting? if so the tapping noise is caused by cold and insuufient oil in the lifters on your tappets as the engine stands, not running, the oil that was circulating while running, goes to oil pan on starting, the oil needs to be circulated back to all parts, try an oli change with correct viscosity oil sometimes a good oil additive such as LUCAS ENGINE OIL ADDITIVE will stop this rattle all cars will have same problem as they get older
after market oil filter have been known to cause engine noises in kia's
When does it make a tapping noise? When your !) braking and turning wheel B) braking c) engine idling D) starting engine E) turning. I mean it just all depends....
hydraulic lifter? Rocker arm?
A tapping noise might come into the engine because of heat damage to the lifters of the motor. You might also hear a tapping sound if the engine has been damaged due to a blown head gasket.
Stuck hydraulic lifter.
something hitting the pipe, hot water pipe touching cold water pipe, or is it burping noise ? a tapping noise is sharp, do you live in an apartment ? is this a house, lot s of causes,
The guy in the trunk is still alive!!!
Most probably the noise is piston slap, this noise is heard when the engine is cold and disappears when the engine is hot. if the slap is very strong when the engine is cold and the noise becomes less when hot but still the noise can be heard.
i have a very loud tapping noise in my BMW 318i e36 1993 engine. its extremly loud on start up then drops down to very loud when idling. the noise never goes away. I've had people say the engine was about to throw a piston, i need a new engine, etc what could it be and is it possible to fix?
possibly low oil or low oil pressure, the tapping may be coming from the oil operated hydraulic lifters.
Try going to a LIGHTER weight of engine oil. That should solve it.
whst causes screeching sound when i turn the key in my car?
Tapping in a diesel engine often means a valve lifter is beginning to fail. It can also mean that sub quality fuel is being used.
Serious engine knock or valve train noise. Have this looked into by a pro.
On our California model it is a smog device...
Sound like your fuel/air ratio is not correct.
Unless you can replicate the engine noise with throttle manipualtion by varying engine speed to 1200 to 1800 rpm, you have a driveline noise
Engine noise (tapping) than Rap and finally engine seizure
alot of times people mistake a tapping or thumping noise under the hood is the engine, when it is actually a purge control motor on drivers side fender. find it and see if the timing to your taping is the same. good luck.
Usually it's the lifters in the engine making that noise until they become fully pressurized with oil, then they stop ticking, like on the 3 liter caravans.
Most likely cause-valvetrain noise, check oil level, pressure, also possible engine knock. If you have a knock sensor, mil should be illuminated
Normal for the 1.8t
when the engine weres down
The fuel in the cylinders exploding