Question about 2002 Toyota Tundra

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I have a 2002 Toyota Tundra 4.7 V8 4WD truck. The engine is making some strange noises. It has recently gotten worse. It originally sounded like a bearing problem, but it sounded like a super charger or turbo. Lately is making a clinking noise as if a piece of metal is bouncing around. It sounds kind of like a penny inside of a vacuum cleaner. It gets worse with acceleration. It goes away when I can keep a regular high speed like on the interstate. It sounds terrible. I thought it might be the power steering pump or one of the pullies. It sounds like it is coming from the fan. I dont know what to do as it is my daily driver.

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Posted on Jan 02, 2017

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SOURCE: 2001 Cadillac Deville; noise after the engine starts

The whine sounds like the power steering or the alternator, as far as the idle issue goes try this clean the intake throttle body and idle speed control valve with carb spray, disconnect battery for 5 min. then reconnect and drive a few miles to reset idle strategy. The car will try to die when you spray the intake, hold the idle up to prevent that, use at least 1/2 the can of carb spray.

Posted on Aug 04, 2008

  • 1 Answer

SOURCE: Noises problem 2006 Chevy Cobalt 4 cyl Front Wheel Drive Automati

Have a mechanic check lower control arm bushing at the rear of the control arm.It is a horizontal bushing retained by a vertical bolt clamping it to frame.The tire will move more forward and back more than it should during braking. canuck mechanic.

Posted on May 07, 2009

  • 404 Answers

SOURCE: Sounds kind of like sloshing noise.

may be your heater core

Posted on May 29, 2009

  • 50 Answers

SOURCE: Engine noise

Hi there. There might be a number of things to consider here, but the two worst things (most expensive) that it might be is either piston slap or crank rumble. Now, given that you have changed the power steering pump, it sounds like you might have an external noise and so my advice prior to you having changed the power steering pump would have been to disconnect the pump belt firstly. If the noise was still there, then there is nothing wrong with the power steer system. So you must now do the same with the alternator and A/C pump belts. Have all the belt drives (apart form the cambelt of course) disconnected - if the noise goes away, you have narrowed down the problem area. If the noise is still there, you probably have crank rumble or piston slap. Best way to diagnose piston slap is during the warm-up period of the engine, this is when the pistons are not quite oval and is effectively lose in the cylnder walls. To determine this the most effective way is to play with the accelerator whilst accelerating gently, accerate and then just back-off on the throttle slightly, if you hear the rattling noise, you can play with the sound by easing back on and off the accelerator. You'd actually do the same for crank rumble, but the difference in sound is the crank rumble will sound heavier whereas the piston slap will sound lighter and of higher tone. If that sounds like what you have (either piston slap or crank rumble) then it really is no big deal and I'd wouldn't worry about it too much. If you do think that this is what you might have, then just make sure you are using the right grade of oil and it's a quality oil and all should be fine. Hope this helps. Scottech.

Posted on Jun 17, 2009

  • 167 Answers

SOURCE: Loud Ticking sound 2004 F150

Check the Alternator / Powersteering belts .
One of them will be damaged and loose.
Hope this helps.

Posted on Aug 01, 2009

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