Question about 1997 Geo Metro

2 Answers

Engine has knocking noise. Oil is good. Started

Engine has knocking noise. Oil is good. Noise started suddenly and does not change. Had valve cover gasket replace a month ago.

Posted by on

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 81 Answers

Engine knock Huh? In order to qualify the term "Knock", Let me get you to perform some simple task/observation. Typically, if you hear a noise on top of your motor that can be described as a light knock, usually going tap, tap, tap, tapping along at double the tempo, of your motor spinning, Your oil pump may be having trouble getting oil to the top where the valve's and rocker arms are. If you hear a "Knock" by bending over or kneeling beside one of your "front wheel well's"and stick your head up to the well, providing a vantage point to "hear" whats going on at the lower part of the engine. A knock from here will/can indicate a potentially overheated, under lubricated, rod or crank bearing that could seize the motor. This (theretical) crank bearing would be sounding off at half the tempo of the rocker arms above., with a deep, dark klunk that would defintly present itself as the sort of noise that damages metal parts. Now, that being said.....common sense goes a long way, people....1.) Most people are aware of the maintenance that has been performed on a particular engine, the quality and quantity of that maint. and when the last time it was ran out of oil or water. For those who fall into the " lack of maintenence" catagory, you probably already know why your engine or driveline sound as it does. If you happen to take particulary good care of your car, there is a good chance that whatever noise or "happening" might be going on, it'll be much easier to remedy. There are always exceptions to every rule. Remember, its not what will happen, it's what can happen. Take care of your car, and it will take care of you. Theroad

Posted on Jul 17, 2009

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.

  • Geo Master
  • 5,568 Answers

Not a good sign; I had a similar occurence with a '95 Saturn and thought it was a vibrating exhaust system, it wasn't.
Thirty miles later, the car was started after a refreshment stop and the engine failed, dumping oil all over the parking lot. A connecting rod cap had come loose and finally fallen into the oil pan causing the affected piston to stop its travel and subsequently the dangling connecting rod was hit by the crankshaft which then broke. Dead at 57,600 miles.

Posted on Jul 16, 2009

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,
a 6ya expert can help you resolve that 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.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

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:

2 Answers

97 grand marquis engine makes a knocking noise


have the timing checked if its off it could be pre-ignition which some people describe as a knock. if its a heavy knocking noise it could be a piston noise or it may even be a bad crankshaft/connecting rod/bearing. have the oil pressure checked this may help to know what to do. some people describe a rocker noise as a knock but its more like a ticking noise at the top end in the area of the valve covers.

Sep 11, 2014 | 1997 Mercury Grand Marquis

1 Answer

Engine knocking noise. timing belt


Theres a neoprene chain keeper inside front engine cover if that was broke loose in there it might have wore your belt to the point that it broke

Nov 29, 2012 | 2002 Chrysler PT Cruiser

2 Answers

I just got the rocker arms changed in my 06 dodge stratus and it is still making a lil noise how long does it take to stop making the noise


If the valve lash is good it should not be making noise. Sounds the mechanic maybe did not get the lash just right. I would ask him to readjust the valve lash or at least check it. The rockers started oil as soon as you started the engine and the oil pressure came up.

Apr 25, 2017 | 2006 Dodge Stratus

4 Answers

Loud knocking noise comming from engine?


1995 Ford Windstar 3.8L Engine Knocking noise on top side of engine near center of Air Plenum. Engine was completely rebuilt 2 years ago (28,000 miles on Re-Built Engine/ 156,000mile on Van). Coolant level is SAT, Engine oil level is Sat. Van was driven 2800 miles since last oil/filter change. Engine started surging as van slowed down to make a stop then engine shut off. Restarted engine and heard knocking noise. Shut engine off immediately. The oil light flickers on dash with engine running. Do fuel injectors make tapping noises when degraded? Is it possible hydraulic lifter not able to leak down or does not fill with oil? Oil pressure issue with the dash light flickering? I can see if the engine has allot of miles on it, the intake and exhaust valves begin to leak-by how ever this not the issue. Where do you start to locate engine knock noise? How is oil pressure checked to see if pressure is too low? Any help where to start would be appreciated.

Feb 10, 2011 | 1995 Ford Windstar

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...


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 2003-chevy-wutfveiel3ypko01ydor435x-5-0.jpg 2003-chevy-wutfveiel3ypko01ydor435x-5-2.jpg

Sep 14, 2010 | 2003 Chevrolet Impala

1 Answer

Engine oil light flashes on for fractions of a second then remains off for several minutes before repeating. started same time noise from engine began, noise follows rpm of motor. clicking like a valve...


the oil level may be good and quality may be good, but the oil pump may be going out considering the valve/engine noises. Have it checked quickly, before this engine locks up.

Feb 24, 2010 | 2008 Dodge Charger

3 Answers

Have a 1990 Z71 4wd that with loud engine knock.


I'd consider some fresh, clean oil & filter change first of all, if it hasn't been done . drive it for a while providing it isn't too bad, & see if it goes away, if not get back to us.

May 18, 2009 | 1990 Chevrolet C1500

2 Answers

I have a punto 55 M reg


10\40 oil ,before changing oil put an engine flush in the engine,then change oil and filter.the noise sounds like noisy tappets,the oil leak unlikely to be head gasket unless u are losing water

Apr 29, 2009 | 2006 Fiat 124

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?
1997 Geo Metro Logo

573 people viewed this question

Ask a Question

Usually answered in minutes!

Top Geo Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8518 Answers

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

Answer questions

Manuals & User Guides

Loading...