Question about Chevrolet Suburban 1500

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I changed the starter on my 1996 4x4 1/2 ton 5.7 Chev Suburban. The vehicle starts fine and sounds normal while cranking over. While in park it idles with no problems. I can rev the engine with no problems. Once I start driving and try to accelerate even moderately, I can hear grinding. If I accelerate easily, it doesn't do it. I assume it is the flywheel but I can't figure out what it is grinding on and why it is doing it. I have taken the starter off and put it back on several times and the problem is still there.

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Apply some white grease to the starter gear and turn the engine over without starting it, remove starter and check the gear mesh pattern to make sure starter is aligned right. You might need to shim the starter. The starters bendix drive might be sticking. Is it a brand new starter or a used or rebuilt starter?

Posted on Jul 21, 2009

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What is a p/n switch for a1994 Chev suburban and if the brake pedal switch replacement can the key not to start the vehicle


Brake pedal switch wouldn't cause a no start problem . A park neutral switch will no allow B+ voltage to the starter if not in park or neutral . Is your vehicle an automatic or manual transmission ? View a wiring diagram at http://bbbind.com/free_tsb.html Do you know what a wiring diagram is ? How to read one ? Do you know how to do automotive electrical testing . Buy a volt meter , you can get a cheap one for a round $10.00 . Check out some training videos on youtube . Is there B+ voltage at the ignition switch . Electrical Issues Solving Automotive Electrical Problems EricTheCarGuy Automotive Online Interactive Practice Tests

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First, you need to know that when you are asking for help with your vehicle - ESPECIALLY when you have and engine that will not run, there is some standard information you should include:

> C-2500 Suburban (2-Wheel Drive) or K-2500 Suburban (4-Wheel Drive)?
> Which ENGINE is your Suburban equipped with?
> Is this an AUTOMATIC or STANDARD transmission?

These things can all make a HUGE difference in the wiring diagrams for your vehicle. There are also some components that are used on one vehicle that do not exist on others. So, to make sure we are working with the correct information for your vehicle, it is necessary to get a FULL description of the vehicle.

With all that said, I also find that the problem description is a little unclear. When you say "No response from the ignition electrical system", do you mean that the starter will not crank the engine? Or do you mean that the starter is cranking the engine, but there is no ignition? Or do you mean something more like nothing works when the ignition switch is turned on?

When it comes to electrical diagnosis, it is very important to know what IS working, as well as what is NOT.

Get back to me with this information and I will see if I can help you.

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1 Answer

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