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Why would a 1997 Audi A4 1.8T with under 50K miles make an engine tapping noise?
Wiki User
∙ 15y ago
Normal for the 1.8t
Wiki User
∙ 15y ago
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What is the loud tapping and or knocking noise under the hood when the car is started and shakes when you drive it?
Serious engine knock or valve train noise. Have this looked into by a pro.
Your Ford Cougar 2000 is making a tapping noise it sounds like its coming from the back what could it be?
hey man i got a 2000 mercury cougar v6 it is makeing a tapping noise under my manifold, and i dont know what that could be. but it sounds like you might be haveing the same problem im haveing. suggestion: try checking where that tapping noise was again, it might be under your manifold!.
What causes a knocking noise under the hood of your car?
it could be your valves or your engine
If my cavalier is making a grinding noise under the hood is it likely that it is the transmission if so what happened before the grinding noise there was no steering or hardly any brakes.?
engine problems not trans.
What causes a ringing noise under load in a F150 V8?
There could be loose rings in the engine that would cause this. The valves on the engine may also be chattering.
Engine light on and backfiring on a 1998 Toyota RAV4 what could this be?
1998 rav4 engine wont idle and clacking noise from under timing belt cover
Why Immediately after passing 50 mph could you get rattles from under engine?
I posted this earlier. weather the van is in gear or out of gear, driving or braking, as soon as it pass 50 mph it starts to make clunking noises from under the engine. not particular to one particular place but mostly from under the passenger footwell, then under the engine itself and sometimes a quieter noise from under the driver seat area. the noises sound like a chipping of metal or a quick and short grinding noise.
How do you tell a difference between an engine knock and a valve tap?
An engine "knock" will become more pronounced when engine is labored (climbing a hill) Valve noise will remain the same under stress
Why would your car make a knocking noise when started?
We need some more information to have a chance of hitting this one. Could be a cat under the hood, could be a clogged oil pump, oil, bad lifters or???? What kind of car and what engine? How many miles, and any recent maintenance? how long does the noise last and what does it sound like?
What causes a tapping noise when starting the engine?
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
Would a bad bearing cause your engine to be hard to turn over and make a loud banging noise under the valve cover?
It can.
I have a ticking noise coming from under the hood and it seems to get worse when the car is heating up this happens from the time you turn the car on until I turn it off?
Your valves may need adjustment. As an engine ages the parts develop larger than normal spaces between them through wear, what you hear is the valve lifters tapping because they have too much gap between their surfaces. If the engine is fairly low on mileage more frequent oil changes and the use of an oil treatment can often times make the noise go away, the thicker oil forces the parts closer together thereby stopping the noise.
