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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Posted on Jan 02, 2017

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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 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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1993 Chevy Suburban. Why does it want to start but doesn't turn?

If your saying the starter motor won't crank? Make sure the battery has a full charge and battery connections are all good. Then check the wiring circuits at the starter for voltage and ground. When testing at the starter make sure tranny is in park or neutral and the parking brake is set.

If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure, also check fuel injector pulse. Can you check applicable trouble codes? How long since a tune-up?

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The problem is in the wiring harness,yes the battery and starter is good, the harness you repaired is the PRNDL. for the starter to start it need a path when the vehicle is Park or Nuetral,there the path is closed some how by Park and Nuetral the path is open.Thats why there is a no start.when in park or nuetral the path is closed.

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1995 chev suburban 2500 wont stART

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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if the battery is OK, but the starter still won't crank, there could be a number of possible reasons. Here are some of them:
- The ignition switch could be at fault - it's a common problem.
- The starter motor itself is common to fail.
- Starter motor control wire could have bad connection.
- Cars with an automatic transmission have a Neutral Safety Switch that allows the starter to be operated only when the transmission is in "Park" or "Neutral" position. When this switch isn't functioning properly, or for example, when the shifter is not fully engaged in "Park" or "Neutral" position, the starter also won't crank.
- Similarly, cars with manual transmission have a switch installed at the clutch pedal that only allow the car to be started when the clutch pedal is depressed. The problem with this clutch pedal switch could also prevent the starter from operating
- A problem with vehicle's security system or some other electronic control module (e.g, PCM, BCM) may also prevent the starter from operating.

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I see you mentioned everything except the battery. Have battery load tested as a weak battery will crank vehicle but may not spin engine fast enough. Dirty connections or corroded cables/ends could cause same problems. Hope this helps.

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