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Top end 3.4L engine noise ...no power - 2004 Chevrolet Impala

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My car makes tapping noises when you start it goes a few blocks then stops running wait a while start it up and it does it again


Noise from the top or bottom. Top end doesn't usually kill the engine, but the bottom end noise will. Year make and model helps. If it is old and high miles. Time for another engine if it is worth it.

May 18, 2015 | Cars & Trucks

1 Answer

How to chan,s power steering fr0m car to car


No bleeding required, just top up oil after the job is done. It will make a noise for a short period of time until the air is gone.
Fill reservoir, move steering wheel without running engine 2-3 times from left end to right end. Start engine, steer again. Keep toping up oil until the level is not going down again at running engine. Road test and check oil again. Done

Nov 28, 2013 | Hyundai Excel Cars & Trucks

1 Answer

How to change cam sensor on pontiac GR AM 3,4L 1999


Place a jack underneath the engine with a block of wood on it as to not damage the engine and pump up the jack just enough to keep the engine from sagging down. Then remove the engine mount near the power steering unit. Removing the motor mount doesn't have to be done, but it makes it easier to remove the power steering pump (your choice). Remove power steering pump and set it aside keeping all the hoses attached. Camshaft position sensor is located beneath power steering pump. It should be held on by 1 bolt if I remember right. Disconnect the 2 wire harness and remove sensor.

Aug 27, 2013 | Cars & Trucks

1 Answer

Engine is making loud knocking noise what does this means


could be various things wrong, could be bottom end big end bearing. you need to establish where the knock is ( top end or bottom end ). if it is big end thats knocking then its an engine change ( saves messing about ) or top end ( camshaft ) then its a mornings job. hope this helps

Feb 18, 2012 | 1999 Ford Crown Victoria

1 Answer

Our 2005 Montana SV6 developed severe engnine knock, with dramatic loss of power, no prior problems that may have lead to this. Our mechanic thinks the oil pump was beginning to fail, and that maybe only...


Is the knock a thudding noise similar to someone pounding on a metal door or is it more of a rattling or chattering noise? If it is the thudding noise there is likely lower end engine damage. If is the chattering or rattling noise it may just be lack of oil to the upper end or head/s of the engine. How far have you driven it like this? If not very far it may have minimal damage that can be repaired by just installing a new oil pump, but if driven over a few miles like this it could be excessive and need new parts+repairs. The oil pump may not be easily changed but extra repairs are definitely going to cost more.

Sep 16, 2011 | 2005 Pontiac Montana SV6

1 Answer

Theres a knocking noise we thought it was the tension pulley replaced it replaced serpentine belt replaced alternator the knocking continues its coming from this area of the engine top part


noises are difficult to track but since your's is on top, try this-CAREFULLY use a wooden handle (from a broom, or paint roller extension) and place the end against items on top of the engine-the other end, your ear. Be aware of the moving pulleys and the belt, take your time-you can isolate the noise this way, and plan your next step.

Jan 04, 2011 | 1995 Buick LeSabre

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

The warer the engine cets the louder the top end


Hi I had the same problem when I purchased GTO, garage replaced engine however a few days later same noise returned, turns out garage had serviced car and used inferior oil, changed to Mobil 1 and have not had any noise since, had car 4 years now! Expensive mistake by dealer !!

Aug 27, 2009 | 1991 Mitsubishi 3000GT

2 Answers

Noise Top end of V6 Saab Engine


hey i dont know if u already solved ur problem but i was having the same problem with mine so i went and bought this solution called risoline, compresion repair. when i changed my oil i poured that stuff in first and then the oil. with in a day it stoped the clicking/knocking noise. hope this helps

May 18, 2009 | 1996 Saab 9000

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