Question about Air Tools & Compressors

1 Answer

Why does my car knock ?

It only knocks wen I start it and after it warms up??

Posted by Anonymous on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mentor:

    An expert who has written 3 tips or uploaded 2 video tips.

    Teacher:

    An expert who has written 2 tips or uploaded 1 video tip.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers

Please give more details

Posted on May 11, 2010

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.
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.
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:

1 Answer

Sounds like a diesel on a cold day


could be a knock sensor or rockers knocking until oil warms up and oil pressure seals the lifters

Sep 27, 2012 | 1995 Chevrolet Silverado 2500

1 Answer

I have a 2009 Dodge Ram that has a loud knocking noise that comes from the blower (under dash passenger side). It starts 6 seconds after I turn the key and lasts for 9 seconds. If I put my hand on the...


sounds like u have an electric mode door motor,in ur hvac housing stripped . move the mode selector to different positions to amplify noise an sort of control noise. u have a blend air door motor, mode position motor, for example inside air an outside air recirculating door motor, or defroster mode motor or actuate the heater position an u should b able to control noise by changing modes, thats wen u know u found it wen u can make the noise come an go. also one of ur selector positions is obviously not workin due to a stripped motor or broken blend door. good luck

Apr 09, 2011 | Dodge Ram 1500 Cars & Trucks

1 Answer

I have a engine knock on a cold start. Knock goes away after engine gets warm


That is an indication of worn internal engine parts, it quiets down when warm because the metals expand tightening up the fit between parts. If it is a true knock then the parts that are most likely worn and causing it are main/rod bearings, or piston bores/rings.

Jan 18, 2011 | 2001 Chevrolet Impala

1 Answer

1998 eclipse 2.0 non-turbo i get this knocking wen i start the car but wen i drive it the knocking stops at 2000 rpm it sounds like its coming from the timing belt. i changed the water pump and timing belt...


Did you make sure the balance shaft belt was ok? Double check to make sure the timing belt is in time and tight. They have a two step tensioner that must be set in a certain order for correct timing.

May 19, 2010 | Mitsubishi Eclipse Cars & Trucks

1 Answer

I have a 1994 Subaru Legacy and It has started making a "knocking sound". Cked the oil, it was OK


knocks when cold ( Start ), then sort of diminish or disappears when warming up ???

Knocking goes faster when accelerating when cold ???

If Yes, then Piston knocking on the wall of the cylinder . The sound disappears as the engine is getting warmer it dilates and the gap gets smaller.

If this just started,

1. Put quality oil & filter ( Mobile Full Synthetic Oil & Mobile Oil Filter or Purolator )

2. Do not put cleaning agents mixed with oil.

3. Personaly i've put "Restore" Engine Restorer & Lubricant in cars with more then 200 000 km and the results are amazing. But only "Restore". My Volvo is at close to 300 000 km, and it runs great. It's not a cleaning agent.

By experience if the knocking just started you can put an easy extra 100 000 km on the engine before a rebuilt. Quality Oil & let the engine warm up ( 3 mins ).


Nov 02, 2009 | 1997 Subaru Legacy

2 Answers

96 Suburban v8/7.4L/454 K2500, Knocking Noise??


sound like an internal engine problem. either one or more of the pistons has "piston slap" and that knocking will diminish as the engine warms up or possibly a rod bearing is worn out. have a tech do a manual oil pressure test to make sure the oil pump and main bearings are ok. piston slap or knock that decreases when the engine warms up is not that serious, but a rod bearing knock or possible oil pump failure should be taken care of asap.

Oct 29, 2009 | 1996 GMC Suburban

1 Answer

Knocking until car warms up


Sounds like a lifter noise. worn lifters can't keep oil in them anymore so over night the oil leaks out. when you start the vehicle, you will hear a ticking noise or knocking noise till the lifters fill with oil again. only remedy is to replace the lifters.
you could try an additive but it's temporary.

Dec 23, 2008 | 2001 Toyota 4Runner

1 Answer

Car is knocking


Sounds like a bad connecting rod bearing or a carbon knock, de-carbon the engine and retest for noise, if it is still there the engine will need to be torn down the crank refinished and new bearings installed.

Oct 27, 2008 | 1998 Volvo S70

Not finding what you are looking for?
Air Tools & Compressors Logo

Related Topics:

48 people viewed this question

Ask a Question

Usually answered in minutes!

Top Air Tools & Compressors Experts

John Trevino

Level 3 Expert

1383 Answers

Joe Garcia
Joe Garcia

Level 2 Expert

205 Answers

Brad Brown

Level 3 Expert

15478 Answers

Are you an Air Tool and Compressor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...