Question about 1995 GMC Sierra

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Ok i put my starter in and all i got was the starter spinning so i put shims in and i am still getting a spinning sound so what could be the problem

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Did you check the teeth on the flywheel? they may be flattened down

Posted on Dec 06, 2012

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  • Pete Sch
    Pete Sch Dec 06, 2012

    yes i did and they are fine

  • Brian Johnson Dec 06, 2012

    have tried to turn the ring gear with a screwdriver to make sure it has not separated from the flywheel

  • Brian Johnson Dec 06, 2012

    did you use the little stick that comes with the shim pack to measure the tooth gap between the starter and flywheel



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1 Answer

Why do I have to put shims in

if your old one had them you should reuse the old ones , when you go to start car lission for a grinding noise or starter gear getting hung up , if its grinding take out shims one at a time till it sounds good ,if its hanging up add shims till you hear it releasing cleanly ,if you need shims most part stores sell them in packs of 4

Feb 25, 2015 | 1993 Chevrolet C1500

1 Answer

Early 1984 Shovelhead FLH, Bendix hanging up after starting, starter continuing to spin & getting hot. How can I make sure alignment/adjustment is correct to prevent this? What is next nest step?

Alignment isn't your problem. Most likely the solenoid. Not pulling the bendix back, replace the starter or bendix. if alignment could be the problem, I have seen it , The starter needs shimmed out. in very rare occasions, I have done a per bolt shim. Only because some one has put a grinder to the mating surfaces.

Oct 25, 2014 | Cars & Trucks

1 Answer

Won't crank over

The solenoid on the remanufactured starter may be defective. Also, sometimes it is necessary to shim a solenoid to get it to engage the ring gear properly.

Dec 14, 2013 | 2000 Ford Expedition

1 Answer

Replaced starter in 2002 tundra, now the starter spins but does not engage

sounds like you need to shim out the starter so the bendex gear in the starter engages with the flywheel/flexplate. as long as the bendex gear in the starter comes out the casing and spins shimming it will take care of that problem

Mar 03, 2013 | Cars & Trucks

1 Answer

My 99 Chevy truck makes a grinding sound when I try to start my truck

Was their any shims when you took off the first one, chevy's have shims to put the starter in the right place.

Aug 22, 2012 | Chevrolet K2500 Cars & Trucks

1 Answer


normally shims are not needed on anything newer than a 1988.. if it doesn't sound right it may be the wrong starter. teeth not lining up on flywheel.. change the gear on the starter with your old one and see if that fixes your issue. pitch of the teeth could be different

Jul 14, 2012 | Saturn Cars & Trucks

2 Answers

Installed a rebuilt starter in a Camaro.

Shims, are to space the starter drive gear away from the flywheel. The shim is inserted between the engine block, and the starter. The thicker the shim, the more the starter drive gear is further away from the flywheel.

Starter housings are machined from the factory, where they were made. No two housings come out the same, for the machined pad, where the starter bolts to the engine block.
The difference is minimal, granted, but thousandths of an inch count in this area.

It's generally a trial an error situation. This is why there are shim packs. Packs of shims with varying thicknesses.
Rule of Thumb, is generally that the starter drive gear, is 3/32nd's of an inch away from the flywheel.
If you hear a metallic grinding kind of sound, the starter is too close. A thicker shim is needed.

I suspect your problem is the starter drive itself. Definitely sounds like it from your description.
Granted, when bench testing the starter drive kicks out, but the roller clutch inside the Bendix drive is no good. (Starter drive)
Suggest you take the starter back, and get an exchange.

This rebuilt starter has a bad Bendix drive.

Apr 19, 2009 | BMW 330 Cars & Trucks

1 Answer

7 starter`s in a year

Did the original starter have shims? It may need some. Get a delco starter and new bolts. Rebuilt non delco starters give trouble and do not last. Check flywheel teeth.

Apr 15, 2009 | 1989 Chevrolet S-10 Blazer

1 Answer


It could be the flywheel, but try putting different size shims in between the starter and engine.The starter might be a little to tight against the flywheel. You should be able to get the starter shims at any auto parts store, or ask where you can get some.

Mar 12, 2009 | 1987 Jeep Wrangler

1 Answer

Changed starter and now we get a revving/whirring sound

It sounds like the starter is not engaging the flywheel to crank it and is just spinning. If it were mine, I'd pull the starter out and see if anything looks strange and see if the starter gear moves easily.

Nov 20, 2008 | 1991 Pontiac 6000

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