Question about 1997 Toyota Camry

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A nocking sound in the engine

I start the car then suddenly the engine starts knocking at times

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Check the oil level and the oil pressure

Posted on Jan 26, 2009

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2003 chrysler concord nocks pings left side


Knocking and pinging are two separate things. "Knocking" usually refers to the sound an engine makes when internal mechanical parts, such as piston rod bearings or connecting rod bearings, begin to wear and cause a deep "knock, knock, knock" sound during engine rotation. "Pinging" refers to the tapping sound you get upon acceleration, either when using fuel that is to loo octane for the vehicle, or when static timing is set too far advanced, or when the cylinder heads are overheating due to clogged water channels or thin oil.
If you are hearing KNOCKING on the left side, it is likely time for an engine rebuild. If you are hearing PINGING, you may need a better grade of fuel, or you are way overdue for either an oil change or a major tune-up.

May 10, 2015 | 2003 Chrysler Concorde

1 Answer

We understand that your problem is: ok i have a ford sohc escort when you start the car it nocks like hell it started doing this out of the blue i drove it the day before and it ran great the knock is...


Hi there? check the oil level. if there is no oil in the engine, it will make it nock especially at the top end.
If the oil level is ok then start the car and remove the oil top up lead and check if there's any oil coming up to the top of the engine. it should pray oil out of the hole. good luck..

May 20, 2011 | 1998 Ford Escort

1 Answer

When i"m driving my volvo


Is the knocking a regular rhythm that is proportional to the speed of the car? Driveshaft center bearings generally drive you crazy with buzzing and grinding before they get to the point of knocking, but I suppose that is possible. Drive shaft and rear end bearings would not make noise as you start the car, however.
Is the knocking related to road surface or braking, and is it directly below your feet? If so, it is the control arm bushing. That part is bolted to the bottom of the car directly beneath your feet and it will knock when the rubber part fails and crumbles out. This is common on a car this old, but this part also would not knock as you start the car.
A knock when you start the car is more likely the exhaust pipe hitting the bottom of the car. This can happen if a bolt is missing from a hangar, or the pipe is bent, or an engine mount is broken. The engine mount on the passenger side is the easier one to see from the top, and is usually the one that breaks first, as I recall. I always suggest that engine mount replacement be left to professionals. That job is a good way to loose a finger.
Be sure and check the bolt in the bracket right at the rear of the engine. For some reason, this one works loose and the bolt falls out. You have to crawl under the car to see if that bolt has fallen out.
Another suspect is the transmission mount. Does the shifter move as you step on the gas and let off the gas?

Mar 24, 2011 | 1986 Volvo 740

1 Answer

Car running rought when u press the throtle there is a nocking noise i think this is the nock senser if i take the ht leads off the spark plugs 1 at a time starting from left they all make a nocking noise...


If you're getting ticking-type knock, I'd first look to the lifters. if it's a real hard knocking, it could be your main bearings on the lower end

Jul 23, 2010 | Cars & Trucks

4 Answers

Engine noise and fails to start


check your oil. If it is frothy or gray then you have water in it and that means you have a blown head gasket. If there is oil in the radiator then the same holds true.

The nocking could be from a failed oil pump as well. If the oil pump fails then the car will not start. You have to remove the oil pan to replace the pump.

May 06, 2010 | 1992 Ford Taurus

2 Answers

Car started noise like nock ing that was from Clutch in AC copmressor


It could be the compressor is going out, or the clutch itself is worn out. If the AC still gets cold, then it is the clutch.

Nov 14, 2009 | 2005 Mercedes-Benz Mercedes Benz E320 Cdi

1 Answer

Alternater is nocking i think its goin out or just might need to


Alternator knocking ????is the alternator light on is it charging as is almost impossible to get a knocking out of a alternator and it still charge at the same time.
Start engine ind get a small plastic tube and put it on the alternator and put your ear to it and you should hear the noise real bad.
And you should feel it getting real hot after run for 3 minutes if not its not ALTERNATOR

Oct 05, 2009 | 2004 Scion xB

1 Answer

Bad nock but still has lots of power


If it has a true knock it could be a spun bearing or piston wrist-pin,this being the case you'll need to get in to the motor. One way to locate the issue, as to what cylinder, is to run the engine at idle in park with E-brake on; remove and replace one at a time the spark plug boots. If you find by removing one boot from a plug and the knock sound drops out this could most likely be the cylinder at issue. I hope this may have helped,
Tom

Sep 25, 2009 | 1998 Dodge Durango

2 Answers

Nocking when cold then goes away (Proton coupe )


It sounds like you may have some sludge in your oil. When the engine is cold the oil is thicker and takes a while for the oil pump to pump it through the engine. The next time you change the oil. Do an engine oil flush first to clean the inside of the engine and ports. If this does not work you might have to have the oil pump checked. There is no need to worry as long as you have oil pressure and the knocking stops. I hope this helps. Don't forget to rate this answer.

Feb 07, 2009 | 2002 Mitsubishi Lancer

3 Answers

Knocking in motor whe ni first start it


have the knock sensor tested if it out then the pmc wont regulate the fuel goin into the injectors

Jan 06, 2009 | 2001 Chevrolet Silverado 1500

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