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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: PastorKen on May 22, 2012, 12:18:08 pm
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Hello, all! I've searched through the forum best I could before adding another thread:
1986 Chevy Stepside C10 4.3 V6
Whistle sound at start: 4 or so whistles [like when I call the dogs in] and then the motor would fire off and run with no more whistle.
Today: No whistle, but nasty grinding [like bearings out] or rocks in a blender sound before engine fires off and runs.
Starter? Could the whistle have been from the alternator brushes...that was a suggestion from father in law.
Thanks for your consideration and advice.
Ken
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When you installed the starter did you check the ring gear to starter gear clearance? There is a shim kit with a gauge which looks like a drill bit for getting proper clearance. It should not have a whistle or grinding sound.
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...1986 Chevy Stepside C10 4.3 V6...
Whistle sound at start... nasty grinding [like bearings out]....
Starter?
Only while cranking?
Was noise concomitant with installation of this starter, or has the starter been in service for awhile and the noise is recent?
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I have not replaced the starter on this vehicle. The noise is a recent phenomena. Only occurs at start up and is not evident during driving or idling.
Ken
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May have an armature dragging. Resolution would be to replace the starter assembly. Be sure to check the starter mounting for missing bolts/cracks and inspect the ring gear on the flexplate (automatic trans) or flywheel (manual trans) for chipped teeth and wear.
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would the engine and starter be turning over with the whistling or while you where trying to turn the motor over just the starter would move?