Question about 2000 Hyundai Accent

2 Answers

Should I do a compression test?

Is a compression test necessary after replacing the valve cover gasket?

Posted by on

  • paul_ireland Mar 02, 2009

    We did a complete tuneup including replacement parts and the valve cover gasket was replaced along with other work (not related to the engine). We spent $1800 in January and last night the engine failed - no compression in 2 cylinders.


2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert that has over 500 points.

  • Expert
  • 239 Answers

No you dont need to do a compression test when you change the valve cover gasket.

best of luck
please rate good

Posted on Mar 02, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 408 Answers

No, not for valve cover gasket.  For a head gasket, maybe.

Posted on Mar 02, 2009

1 Suggested Answer

  • 2 Answers

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

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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Why is there a miss in cyl. 1 that only occurs at idle speed, which seems low (750 rpm)?

Bad head gasket, burnt/stuck valve, or bad piston rings. Do a compression test. None are worth fixing in a high mileage car. It only creates other problem.

Apr 05, 2016 | 1999 Plymouth Breeze

1 Answer


Replacing valve cover gasket is not going to fix your problem. No compression means you have a problem with valves, lifters or camshaft.

Nov 20, 2015 | Buick LeSabre Cars & Trucks

2 Answers

Hi I'm getting low compression pressure on cylinder 2 on my Renault Clio 1.4 16v 2003 model 1,3&4 are OK I have changed head gasket,valves,rings but still the compression is low can anyone help please

I wonder did you check your work as you progressed?
Pressure testing the valve seats for instance or even just a paraffin test? A good valve seat is difficult to obtain with the hardened steel seats used for unleaded fuel, especially when using a coarse grade of carborundum paste.

In order to discover where the compression leak is it will be necessary to set the cylinder at the top of the compression stroke, lock the engine and then inject compressed air into the cylinder using either a propriety or home-made adapter in the spark plug hole. It will soon be obvious where the air is leaking from indicating the fault.

Valve clearances are important and in the case of hydraulic self-adjusting valve lifters it is possible for them to stick and hold the valve slightly open. I generally squeeze each one in a vice several times until all the oil has been evacuated.
If the valve spring is weak or the oil pressure relief valve is stuck closed tappet jacking is possible.
Good luck!

Nov 02, 2015 | Renault Cars & Trucks

2 Answers

How to fix my ford ganger 2001 v6 3 o l I have low comprecion cylinder number 2

Well, there are a few causes for low compression....bent valve, broken rings, worn cylinder, broken/ chipped valve, blown head gasket, cracked head, cracked block/ cylinder, broken/ cracked you can tell, none of which are good and always means going into the engine to repair. A lot of times it is quicker, cheaper, and easier to exchange the engine for either a remanufactured or good salvage yard engine.

Sep 26, 2014 | Cars & Trucks

1 Answer

Replaced head gaskets now will not start

With the valve cover removed, the intake valve will close at the beginning of the compression stroke for cylinder one.
The strokes are intake, compression, explosion or power, and then exhaust.

Mar 04, 2014 | Cars & Trucks

1 Answer

1996 saturn sl2 low compresion

You could do a leak test where you put compressed air into the cylinder to check for a valve problem. You have to take the valve cover off to make sure the valves are closed.
Either way you'll probably have to pull the head to check the gasket and head for a crack.

Jun 22, 2013 | Cars & Trucks

1 Answer

Oil on the spark plugs/failing cylinder?

The important question is - oil on the top half of the spark plug, or oil on the bottom (fire) end of the spark plug?
Oil on the top end of the plug means that your valve cover gasket is leaking. This is a common problem. BMW valve cover gaskets get hard and shrink and have to be replaced about every 10 years. It is an easy do-it-yourself repair, but it can take a while to dig the old hardened gasket out of the valve cover without scratching it. Just be patient.
If the bottom (fire) end of the plug is wet, either the plug is not firing due to a failed coil or some other electrical problem, or you have bigger problems in that cylinder. A compression test is in order.

Sep 13, 2011 | BMW 325 Cars & Trucks

1 Answer

1997 silverado 5.7L I am going to replace the intake gasket because it is leaking. It is buring 1-1/2 quarts of oil or more between oil changes. I suspect a vavle job may be in order but have never done...

Bad valve's will not burn oil, bad valve will cause a cylinder miss fire, due to you will loose cylinder compression, I would replace the valve seal's, Also do a wet and dry compression test, do a dry test, and write down reading's, then add oil in cylinder, and do another compression test, if in any cylinder's compression jumps higher then dry test, that's where your loosing oil, weak piston ring's.

Aug 20, 2010 | 1997 Chevrolet K1500

1 Answer

I have a 1997 chev cavalier with a leaky valve pan that needs replacement can you tell me the torque specs for the valve cover please 2.2 litre

Valve covers don't need to be very tight. A torque wrench isn't necessary as all they do is contain the oil. If it is leaking you will likely need to replace the valve cover gasket. Just tighten it with a small ratchet and socket until it's snug. Over tightening will compress the gasket and cause it to leak. If you feel you need to use a torque wrench, i would guess about 10 or 15 lbs.

Apr 16, 2010 | 1997 Chevrolet Cavalier

3 Answers

I have the appearance of leakage at the top of my engine. The car has 88,000 miles so I am wondering if it is time to do a head gasket job on this car?

If it is at the top of the engine, it is most likely valve cover.
To test if the head gasket is going you can do a compression test on the engine. It is more relevant that the cylinders be of equal compression than an absolute value.

Mar 12, 2010 | 2003 Buick Century

Not finding what you are looking for?
2000 Hyundai Accent Logo

Related Topics:

184 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts


Level 3 Expert

70374 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6878 Answers

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

Answer questions

Manuals & User Guides