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Engine tapping noise

Tapping from top of engine

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Engine got a knocking cold start, silint when hot


It has developed a clicking engine noise on a cold start. After the car has warmed up, the sound goes away. ... Clicking or a sharp tapping from the valve cover on top of the engine would point to a valve train noise. A dull tapping or slapping sound from the side of the engine block would point more toward piston slap.4 Nov 2011

Cold-start engine clicking is a nuisance, not a disaster - StarTribune.com


Dec 13, 2016 | Cars & Trucks

1 Answer

2004 Durango tapping noise on 2nd engine, suggestions?


Lifters on top. Rod bearings on bottom. Lifters are normal. they should come out of tapping. Bearings only get worse.

Feb 22, 2015 | Cars & Trucks

1 Answer

Tap coming from top of engine


I think you will ruin the engine with the thick stuff from the parts store
if you have variable cams-- your in big trouble with thick oil

I think you forget the noise & continue on


How would a timing belt cause noise in the valve train?


You had it apart some what ,see any reason the belt would
be an issue?


I think it is worn out ,try something that isn't Asian next time

Dec 13, 2012 | 2007 Hyundai Tucson 2.7

1 Answer

Knocking coming from top of the engine


Only a shop that works on your make & engine or a dealer
would be familiar with noises & also check bulletins

Nov 21, 2012 | 2000 Hyundai Accent

1 Answer

NOISE WHEN COLD THEN GOES AWAY WHEN WARMS UP,SOMEONE SAID MAIN BEARINGS GOING BAD


Hard to say over the internet but I will try to explain. If the noise is a distict KNOCK KNOCK and it sounds like it is coming from the bottom of the engine, then it most likely is a rod or main bearing. If it is a TAP TAP noise that sounds like it's coming from the top of the engine, then most likely a valve lifer is failing/failed.
the fact that it goes away when the car is warm, makes me lean towards a bad lifter. Normaly if a bearing is bad and knocking, the noise doesn't go away.

The KNOCK noise will be somewhat hollow sounding and the TAP TAP sound will be more solid. If the KNOCK KNOCK is solid, then a rod or main bearing has most likely failed to the point that a new/reman engine will be needed.

Jun 14, 2011 | 1994 Pontiac Grand Prix

1 Answer

2003 Volvo S40 making a tap. tap, tap, silent (repeated continually) while the engine is running. Noise appears to be coming from the top of the engine. Engine has been recently preplaced but the tap...


Please check to see if the slapping noise is from the belts, the idler , the water pump or alternator. Also check if this is the tappets or the valves, if so this might require a check up after removing the valve door covers. Check for oil pump pressure and also for settings of the valves.

Mar 18, 2011 | Volvo S40 Cars & Trucks

1 Answer

Hi, i have a toyota fielder 1.8cc with a some problem which has now come up. when i switch on esp in the morning after staying overnight, it produces some really annoying sound from the engine. when the...


If it is a 'squealing' noise it's probably the alternator/power steering drive belt. Before you turn on the engine in the morning, lightlt smear or spray some oil on the inside of the drive belt to lubricate it. If the squealing stops/disappears, then that's the fault ..

That squealing noise can be caused by an incorrectly tensioned belt, or a worn belt. Replacement is the only option.

The other frightening sounds can best be described as 'rattles' or 'tapping'. When a car stands overnight all the oil drains back into the sump (oil/pan).

There are two things (usually) that can be cause the rattle/tap:
1. Because the oil hasn't been pumped around the system, at start up worn big end bearings can rattle and tap on the crankshaft until the oil 'fills the gaps'. The tapping/rattling goes away as the engine warms and oil is pumped around the lubricating system.

A 'bottom end tapping' is a symptom of worn big ends (they are bearings at the bottom of the piston and fit around the crankshaft).

2. A rattle/tapping from the top of the engine can either be a worn camshaft or 'lazy tappets'. Again, when the engine warms and oil gets to the camshaft and tappets (also called 'hydraulic lifters) the noise will disappear.

If your car has this rattling/tapping noise - identify whether it is coming from just under the rocker box (ie the camshaft/tappets..) or the bottom end of the engine (big end bearings).

If the noise is coming from the top of the engine, try an oil change with a can of thick 'additive' included. A lazy tappet (lifter) isn't too much to worry about. A worn camshaft will affect the performance of the engine, though continue to do its job. An oil change with an additive included may help in quitening things down.

A bottom end tap/rattle (or 'knock') - the sooner that is sorted out the better.

Aug 16, 2010 | Toyota Corolla Cars & Trucks

1 Answer

96 Eclipse 2.0 non-turbo Engine has a tapping sound that sounds like its coming from the top of the engine. The sound is loud enough to make it difficult to tell where its coming from. I took the valve...


Most likely cause is a hydralic tappet. Mits are well know for top end noise. Note we are talking about a tapping or clicking sound not a knock. You can try using an engine flush product if the noise is getting bad and then changing your oil. Generally if the oil is not changed regularily eventually the tapping noise gets happens.

Feb 21, 2010 | 1996 Mitsubishi Eclipse

1 Answer

LOUD TAPPING NOISE


the noise is from the fuelpump have to replace it .

Feb 27, 2009 | 1998 Ford Escort

1 Answer

Ticking noise in engine and blue smoke in exhaust


the tapping are the lifts tapping because there is no oil getting to the top of the motor. the blue smoke is the oil burning.could be the head gasket is going bad or the piston rings are done in.

Sep 24, 2008 | 1990 Ford Ranger SuperCab

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