Question about 2003 Chevrolet Impala

2 Answers

I have a 2003 Chevy Impala. I ran my car with no oil and now I'm hearing a loud ticking/knocking noise coming from under my valve cover. I added 2 bottles of oil after finding out that I didnt have any and my car sounded and ran just fine. It wasnt until like 2/3 weeks later that I started to hear the ticking/knocking noise. It was quiet and came and went until i drove it once more, now it ticks all the time and its somewhat loud. Can anyone help me please and let me know what you think it may be? Again the noise is coming from right under the valve cover and i havent had an oil change for quite a minute. I dont want to move my car because it sounds like a helicopter going down the street everytime I push on the gas and I dont want to do anymore damage. Thanks!

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Chevrolet Master
  • 706 Answers

Might be the valves have been damaged running without oil
- or the crankshaft / camshaft / main bearings
most probably you have to let the engine be rebuilt by a mechanic
(expect cost of more than US$ 2.000)
or get another (used) engine at a scrapyard I have a 2003 Chevy - 2003-chevy-wutfveiel3ypko01ydor435x-5-0.jpg

Posted on Dec 06, 2014

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,793 Answers

Try this to see if it makes it better,drain all the oil,replace the filter ,then top up with 20/50 oil,if the noise goes away you have been lucky,if not, its gonna cost ya..... so you can decide what the noise could be,constant "tapping" .....cam followers....."tapping" when engine slows,small ends....."knocking", when engine slows,
big end bearings.(engine revved up/no load.)knocking when accelerating under load NEW engine.......

Posted on Sep 14, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Engine tick with timing seems off but no check engine light.


If you ran it low find out where the oil is going leaks seal's put a large piece of card board under your vehicle tonite and check in the morning.do not move until you check.As far as the tick that sounds like a bad valve lifter or damage to your engine.

Jan 12, 2018 | 2003 Pontiac Grand Am

1 Answer

Tick in motor with a lot of blowback coming from oil cap has started making a whining noise. not the knock sensor. could it be the oil pump?


The ticking may be coming from the valves, and or, the rocker arms, and or, the lifters. I have a 1996 Chevy Cavalier that has valve train noise and has 230,000 miles on it and is still going. If you are taking the oil cap off when the engine is running, you will see oil spitting out of it, since the engine is lubing the top end. Most vehicles have a pressure gauge on the instrument panel, and or, an oil light, which would show pressure problems. Try to isolate where the ticking is coming from by using a mechanics stethoscope, or a screw driver to your ear. The handle part of the screw driver goes to your ear of course. Place the scope or screw driver blade close to where the tick is coming from and you will hear the ticking get louder the closer you get to it.

Oct 14, 2013 | 2007 Chevrolet Chevrolet Cobalt LS

1 Answer

2003 impala LS making loud ticking noise on cold starts, subsides when warm


yes chevys 3.4 and 3.5 have common lifter noise, have you checked the oil level. I would a better oil ,and I put lucas oil treat in my customers cars after oil changes

Nov 11, 2012 | 2003 Chevrolet Impala

1 Answer

2009 Ford Flex when started first thing on a cold morning it ticks/knocs really really loud, once it warms up the ticking goes away to a very light tick. The dealership ruled out an exhaust manifold leak....


It does sound like a valve lifter problem to me also. It should be covered under warranty. It's a mechanical failure of a component of the drivetrain. Ask them to show you the specific exclusion if they say it's not a warranty problem.Powertrain warranty is 60 months/60,000 miles ( which ever comes first).

Mar 30, 2011 | 2009 Ford Flex

1 Answer

I took the car for repair and they fixed my oil pan valve cover gasket and the oil pan gasket. they put the knock sensor wire direct to the knock sensor since they didnt have a connector. i drove off and...


the knock sensor changes the timing of the motor when it senses knock ,it sounds like the wire may have come off ,it sounds as if when you press the gas the timing should advance and it sounds as if its not advancing thats why you are hearing a clattering noise on accelerating.if you keep driving it like that you can do engine damage

Mar 03, 2011 | Toyota Tercel Cars & Trucks

2 Answers

MAKING NOISE AT CENTER OF TOP ENGINE UNDER MANIFOLD LOUD NOISE


Is it a ticking or knocking noise? or does it sound like something is leaking could be a bad manifold gasket which would be better than a ticking or knocking.

Jul 08, 2009 | 2005 Jaguar XJ-Series

2 Answers

Loud knocking or tapping sound when engine is cold


THIS NOISE IS PISTON SLAP..MOST NEONS HAVE THIS NOISE..HAVE SEEN THEM LAST FOR A LONG TIME..AS LONG AS IT GOES AWAY,IT SHOULD BE FINE

Mar 08, 2009 | 1998 Dodge Neon

3 Answers

Knocking under valve cover on cold starts


Is there any smoke when you first start it? what is happening is the valve seals are probably worn and letting the oil seep past them. when your engine is first started it has no oil or very little oil at the top of the engine, thus causing the knocking noise. could be more but this is a most likely answer. oh and is you haven't changed your oil every 3,000 miles you had beeter start doing it.... answer knocking sounds usually come from bottom of engine try a better quality and correct viscosity oil

Nov 17, 2008 | Hyundai Motor 2002 Elantra

Not finding what you are looking for?
2003 Chevrolet Impala Logo

1,005 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

80531 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...