Question about 1983 Mazda RX-7

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Bearing noise in 13b

When the engine warms up there is a scraping bearing noise coming from the engine. Please point me in the right direction

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Check again- could be gear box bearing, depress the clutch pedal and see if noise stops,if so gear box bearing need to change .

Posted on Jan 16, 2009

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1999 camryshuddering brake peddle


Bad rotors, pads, wheel bearing or ball joint. Not enough info to give a good solution. Any noises, is this sudden, or progressive? How old are the brakes?please provide some more info and I can better direct the process of trouble shooting. Scraping noises?

Jan 27, 2013 | Toyota Camry Cars & Trucks

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NOISE WHEN COLD THEN GOES AWAY WHEN WARMS UP,SOMEONE SAID MAIN BEARINGS GOING BAD


Hard to say over the internet but I will try to explain. If the noise is a distict KNOCK KNOCK and it sounds like it is coming from the bottom of the engine, then it most likely is a rod or main bearing. If it is a TAP TAP noise that sounds like it's coming from the top of the engine, then most likely a valve lifer is failing/failed.
the fact that it goes away when the car is warm, makes me lean towards a bad lifter. Normaly if a bearing is bad and knocking, the noise doesn't go away.

The KNOCK noise will be somewhat hollow sounding and the TAP TAP sound will be more solid. If the KNOCK KNOCK is solid, then a rod or main bearing has most likely failed to the point that a new/reman engine will be needed.

Jun 14, 2011 | 1994 Pontiac Grand Prix

1 Answer

Intermittent noise not a misfire sounds internal like a rod or valve or lifter. No check engine light, car has good power. U only hear noise after car is warm and not all the time. Could it b my belts? Any...


After it's warmed up to operating temp, if it makes the noise at idle but goes away reving the engine, I would guess that a lifter has gone bad. Rod bearings as a rule knock all the time. It's hard to diagnose these things over the internet, because there are so many variables when it comes to noises.

You need to warm the car up and then while it is running, open the hood and try to pinpoint the source. lifter noise will sound like a "tick" and come from somewhere near the top. Rod bearings will sound like a 'knock" and will come from the bottom of the engine.

Jan 25, 2011 | Ford Crown Victoria Cars & Trucks

1 Answer

I have a grinding/scraping noise when driving forward. It sounded like rear brakes, and I checked/replaced rear parking brake parts that were suspect. Also changed rear drive shaft ujoints after noise...


Good Evening, those noises can be annoying and sometimes hard to find. However it sounds like you have a front hub assembly going bad. Usually the noise goes away when you veer one direction or the other. I have heard some transfer case noises but they usually do not go away on turns. Check those front hub-wheel bearing assemblies and see what you come up with. Hope this points you in the right direction.

Oct 08, 2010 | 2000 Chevrolet Silverado 1500

1 Answer

My car makes a noise when I drive and someone told me I neeed a cold air intake but I don't know if that's right. But after a little while the noise goes away but I still don't like it.


Cold air intakes are for hot rodding. Try and pin point the area of your noise. It could be your alternator bearing, or an idler bearing, or just a loose belt. Any one of which may go away when the engine gets warm. It could be a dirty air filter needing to be changed. More detailed analysis will locate and find the cause.

Oct 03, 2010 | 2001 Mercury Cougar

2 Answers

Noise from offside rear wheel when turning, it sounds like a bearing but we don't think it is that, its not really a 'knocking' more of a scraping, grinding sound. Its not continious, seems to occur mainly...


Have the front brakes checked alot of times the brake pads wear down to the point that the wear warning indicator starts to rub on the rotor or disc and makes a scraping sound when turning, your front brake pads are due to be replaced, I am 80% sure.

Sep 06, 2009 | 2000 Daewoo Korando

1 Answer

Intermittant scraping noise coming from engine when idleing


sorry really need to hear this noise ,could be anything from water pump to a idler bearing

Aug 11, 2009 | 1998 Nissan Altima

1 Answer

93 Grand Caravan right rear wheel/brake problem(s)


well i can help with problem #2

even if you tightened the wheel bearing, it is probably worn out..

what it does when it's loose is you won't hear much noise when you drive on a strait road but the minute you put some weight on it, like when you take a curve, the weight of the body is applied on the bearing resulting in a scraping noise....

and the faster you'll drive the more noise you'll get

so let's say you take a left turn you're gonna hear noise from the right wheel...

Apr 29, 2009 | 1993 Dodge Grand Caravan

1 Answer

Scraping sound


Please check the bearing on the righthand side drive shaft.The bearing can be found in the middle of the shaft.

Aug 04, 2008 | 1995 Toyota Camry

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