Question about 1993 Chevrolet S-10

1 Answer

93 s10 whines

My S-10 makes a sharp whining noise. i have removed the belt and started it, still makes the noise. So.... pulley's and all belt driven hardware eliminated. No codes are thrown. Whining sounds like the whine from an amp. and increases and decreases pitch when accelerating. I have no amp hooked up. i have disconnected the radio just to be sure and the noise continues. running out of things to troubleshoot. any ideas? Maybe unrelated but the injectors seem to be dumping an excess of fuel during idle.

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1 Answer

The fuel pressure regulator & spyder assy, most likely is bad

Don't think that is your noise though

Check trans fluid,may be pump noise

Posted on Jan 06, 2013

  • willwin5
    willwin5 Jan 06, 2013

    Dont think the 93 has fpr and never heard of the spyder . the noise is under the hood and i have eliminated everything i have tested. including...all belt driven hardware and belt, iac, pcv, all hoses, cleaned distributor and rotor ++++ any other ideas

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SOURCE: getting a high pitched whining sound that increases and decreases with accelleration and decelleration

it is your idler pulley. get it from dealer comes with bracket, just use pulley off bracket. take your belt off and your idler pulley is lower right hand side(facing your engine). 15mm bolt, replace pulley and reinstall your belt. it;s a common problem on trailblazers

Posted on May 05, 2009

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SOURCE: silverado 4.8 liter engine makes a whining noise.

Back pressure from a clogged catalytic converter can also cause this problem.

Posted on May 24, 2009

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SOURCE: 1990 chevy s10 blazer 4wd. Xmsn whines.

if this happens only in the morning after you start for the first time its the clutch on the fanblade needs replacing

Posted on Dec 02, 2009

  • 398 Answers

SOURCE: i have a 2003 suburban

check the fluid in the power steering and make sure its full of fluid. But it does sounds like you power steering pump is going bad..Good Luck!!!

Posted on Nov 05, 2010

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1 Answer

Why is my car making whining noise by belts and pully


One of the accessory bearings could be going out
(I.E.-alternator,water pump,etc)If the noise is near an idler or tensioner pulley,it could also have a bad bearing.The best thing to do is remove the serpentine belt or release the tensioner pulley so the belt is loose,then you can spin each accessory pulley by hand and listen for the noise.You'll also feel the pulley dragging while you spin it and it might have a ratchety feel to it(in other words,as you're rotating the pulley you'll feel it spin somewhat freely and then it will feel as if its catching on something) If the belt itself is bad,it usually makes a squealing or chirping sound.If your vehicle has a vbelt drive with multiple belts,check the pullies the same way as described above and make sure the belts are all tight.A loose belt normally causes a squealing noise rather than a whining noise.Check your power steering fluid level too because the pump will whine if it gets low on fluid.

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Most whining sounds come from the belt area and are caused by a bad bearing in a pulley. You can remove the belt and start the car to see if the noise goes away. If it does, you need to spin all the pulleys by hand to check for roughness/looseness.

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Check your transmission fluid level, as recommended in the Owner's Manual. Also, if your car is equipped with power steering, check the fluid level in the power steering reserve.

If all fluids are at recommended levels, see if you can locate the noise. If it is in the engine compartment, try to determine if the noise is coming from any of the serpentine belt pulleys.

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The lost acceleration is of major concern. Maybe you have lost your water pump. It would work great for a few miles when you start out and then gradually heat up and loose performance. The fluid would eventually boil over? Maybe a bearing on the camshaft is expressing it's discontent and causing extra load for the engine to overcome. Try to determine where the noise is coming from.
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1 Answer

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