Question about 1994 Chevrolet S-10

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Troubleshooting a low whine on a 94 s-10 v6

Truck: 1994 S-10 4.3L V6 with CPI Most Recent Changes: Replaced air filter, alternator, steering pump line, and S.belt. Problem: Started noticing a low pitched whine from the front that gets louder with acceleration but decreases when the AT shifts gears. Almost sounds like a belt whine but not as high pitched. Basically makes my little truck sound much bigger than it really is so it isn't much of a problem, just want to know why it is happening...Any ideas?

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6ya6ya
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Posted on Jan 02, 2017

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n_c_713
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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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csmock132
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SOURCE: 1997 Suburban 4x4 5.7L Transmission whines until it shifts

You rear planetary set is worn from a restricted cooler.

Posted on May 06, 2009

  • 64 Answers

SOURCE: My S10 blazer lacks power, bogs under

sounds to me like a bad fuel pressure regulator. I would replace that and see what happens, if that fails you may have contaminated fuel

Posted on Jul 10, 2009

  • 369 Answers

SOURCE: my 1998 silverado was making a high pitch whine

Definitly the fuel pump but probably going bad.

Posted on Dec 02, 2009

  • 85 Answers

SOURCE: I have a chevy avalanch pickup truck and it make

take off belt and try again onely for less than 5 min to see if it still makes noise

Posted on Feb 27, 2010

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