Question about Cars & Trucks

1 Answer

Could the neutral control switch prevent my car from starting

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 452 Answers

Yes it could

Posted on Oct 12, 2013

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 120 Answers

SOURCE: When I turn the key in the ignition I don't hear

no. the noise you're not hearing is the fuel pump. When u turn ur key on you should hear a buzzing like sound from the rear of the vehicle. If not, and ur car don' start, probably fuel pump. Just to verify the faulty fuel pump, have an assistant open the fuel tank cover and remove the gas cap itself. With you inside turn just the key on, and have your assistant listen for the "buzzing" or "hummin" sound. if nothing there, then faulty fuel pump. If noise is present, then perhaps you have a different problem like nothing is reaching the engine, fuel wise. Like a plugged fuel filter. when replacing the fuel pump, ALWAYS do the new strainer as installing the old one could cause a whole new set of problems and eventually wipe out the new one as well *RULE OF THUMB, WITH NEW FUEL PUMP, REPLACE FUEL FITLER.* this will be easier on the pump output to the engine. good luck.!

Posted on Aug 24, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Need the wiring diagram for 2005 Chevy trailblazer underhood fuse block, starting circuit.


Do you know if it is ECM/PCM or BCM controlled ?
Circuit Description (ECM/PCM Controlled)
Moving the ignition switch to the START position sends a 12-volt signal to the engine control module (ECM)/powertrain control module (PCM) Crank Request circuit. The ECM/PCM verifies that the transmission is in the PARK or NEUTRAL position. With the transmission in Park, voltage flows through the Park/Neutral position switch and feeds the starter relay coil. The PCM then grounds the control circuit of the starter relay. When the starter relay is energized it allows battery positive voltage to the starter solenoid S terminal. On some vehicles the starter will continue to crank the engine with the key released until it starts or the crank command has timed out to prevent excessive heat build up in the starter circuitry or the ECM/PCM receives an engine run flag.
Circuit Description (BCM Controlled)
Moving the ignition to the START position signals the body control module (BCM) that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the powertrain control module (PCM) requesting engine start. The BCM also energizes the RUN/CRANK RELAY. When the RUN/CRANK RELAY switch side closes, and the vehicle is in Park or Neutral or with the clutch is fully depressed, if equipped, supplies voltage to the starter relay coil. The PCM verifies the transmission is in Park or Neutral and the clutch is fully depressed, if equipped. The PCM will then ground the control circuit of the starter relay, closing the switch supplying voltage to the starter solenoid. On some vehicles the starter will continue to crank the engine with the key released until it starts of the crank command has timed out to prevent excessive heat build up in the starter circuitry or the PCM receives an engine run flag.

Free wiring diagrams here
http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on engine ,then under subsystem click on starting . Click the search button ,then click the blue link .
If you look at the diagram you will see the ignition switch ,when in start it sends B+ voltage to the ECM/PCM or depending on which system or engine to the BCM . When it see's this input it will energize the starter relay located in the under hood fuse box. This happens if the control module in charge see's another input from the PNP- park neutral position sensor and if no anti-theft system problems .
Good luck !

Sep 30, 2017 | Cars & Trucks

1 Answer

Can't get mark 8 1996 lincoln in to park


Your neutral safety switch is bad.The neutral safety switch is a safety device that only allows you to start your engine when the automatic transmission is in either Park or Neutral. ... This switch prevents you from starting the engine when the transmission is in any gear other than Park or Neutral.

Jul 11, 2017 | Lincoln Mark VIII Cars & Trucks

1 Answer

2002 chevy trailblazer and it will not crank or start and the key has gotten stuck in the ignition. I also got a jumpstart and it still didn't start. What is wrong, Please?


Could be a number of thing's , can you do automotive electrical testing ? Do you know if starting is PCM / ECM controlled or BCM controlled ? Do you know what these are ? BCM - body control module , PCM/ECM - engine computer !
Moving the ignition switch to the START position sends a 12-volt signal to the engine control module (ECM)/powertrain control module (PCM) Crank Request circuit. The ECM/PCM verifies that the transmission is in the PARK or NEUTRAL position. With the transmission in Park, voltage flows through the Park/Neutral position switch and feeds the starter relay coil. The PCM then grounds the control circuit of the starter relay. When the starter relay is energized it allows battery positive voltage to the starter solenoid S terminal. On some vehicles the starter will continue to crank the engine with the key released until it starts or the crank command has timed out to prevent excessive heat build up in the starter circuitry or the ECM/PCM receives an engine run flag.
Circuit Description (BCM Controlled)
Moving the ignition to the START position signals the body control module (BCM) that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the powertrain control module (PCM) requesting engine start. The BCM also energizes the RUN/CRANK RELAY. When the RUN/CRANK RELAY switch side closes, and the vehicle is in Park or Neutral or with the clutch is fully depressed, if equipped, supplies voltage to the starter relay coil. The PCM verifies the transmission is in Park or Neutral and the clutch is fully depressed, if equipped. The PCM will then ground the control circuit of the starter relay, closing the switch supplying voltage to the starter solenoid. On some vehicles the starter will continue to crank the engine with the key released until it starts of the crank command has timed out to prevent excessive heat build up in the starter circuitry or the PCM receives an engine run flag.
Do you know what a park neutral safety switch is ? What do you mean key stuck in ignition ? Can't turn the key to off position , or you can an the key will not come out ?
Your best bet , take it to a qualified repair shop .

Apr 04, 2017 | 2002 Chevrolet TrailBlazer

1 Answer

Will a faulty neutral safety switch cause a car not to turn over?


Yes, the neutral safety switch prevents the engine to be started except in park or Neutral. When the switch is faulty, it will not start anymore in any position.

Aug 13, 2014 | 2010 Jeep Compass

1 Answer

How to fixed wont start engine..


test the following and fix it. GOD BLESS you.fe35589e-c7d2-4fa3-a813-99841956a6cb.gif
If nothing happens when you turn the ignition key to the "Start" position, it means that the starter motor doesn't turn over the engine. Most commonly this could be caused by a dead battery;
If the battery checks out 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 bad - it's a common problem. An ignition switch is an electrical switch installed at the back of the ignition lock mechanism. If jiggling the key in the ignition helps start the car, the ignition switch should be checked first.
The starter solenoid control wire could have a bad connection.
The starter motor itself or a starter solenoid could be bad.
A neutral safety switch is bad. If a car doesn't start with the transmission in Park, but starts in Neutral, it could be caused by a problem with a neutral safety switch.
.
A problem with vehicle's security system or some other electronic control module (e.g., ECM, BCM) may also prevent the starter from operating.

Jul 27, 2013 | 2004 Chevrolet Aveo

1 Answer

Will not start / computer key?


test the following and fix it. God bless you

If nothing happens when you turn the ignition key to the "Start" position, it means that the starter motor doesn't turn over the engine. Most commonly this could be caused by a dead battery;
If the battery checks out 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 bad - it's a common problem. An ignition switch is an electrical switch installed at the back of the ignition lock mechanism. If jiggling the key in the ignition helps start the car, the ignition switch should be checked first.
The starter solenoid control wire could have a bad connection.
The starter motor itself or a starter solenoid could be bad.
A neutral safety switch is bad. If a car doesn't start with the transmission in Park, but starts in Neutral, it could be caused by a problem with a neutral safety switch.

A problem with vehicle's security system or some other electronic control module (e.g., ECM, BCM) may also prevent the starter from operating.
see the diagram attached and proceed.1e981703-9c1f-4bcc-b4b9-95d04805c4c5.gif

Jul 27, 2013 | 2002 Buick Park Avenue

1 Answer

Is there a "neutral safety


most automatics have a safety switch so they can only be started in park or neutral.
if there is a fault in the switch it would prevent the car from starting.
i dont know specifics on oldsmobiles, but on most cars the switch is located on or around the gear selector lever.

Feb 20, 2011 | 1999 Oldsmobile Cutlass

1 Answer

Engine won't crank over or even make a clicking noise. I charged battery yesterday and the lights are bright. Gauges work Power windows work


It could be any of the following:

- The ignition switch
- A bad connection in the starter motor
- The starter motor itself
- If your car is an automatic, the Neutral Safety Switch that allows the starter to be operated only when the transmission is in "Park" or "Neutral" may noy be functioning properly.
- The shifter may not be fully engaged in "Park" or "Neutral" position
- If you car has a manual transmission, there is a switch installed at the clutch pedal that only allows the car to be started when the clutch pedal is depressed. A problem with this 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.

Hopefully this can at least give you a place to start looking. last three times its happened to me or my sister, it's been the starter.

Best of luck!

Jul 15, 2010 | 1998 Buick LeSabre

1 Answer

Won't start, battery ok sits for a while then starts fine


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.

May 12, 2010 | 2004 Chevrolet Tahoe

1 Answer

When starting 2.4 2007 a6 triptronic,i sometimes have to move lever in and out of park to get car started only 37000 miles driven.Is this a common problem.


there is a device called a neutral safety switch. it prevents the car from starting in any position accept park or neutral. the switch is most likely defective and will have to be replaced. try starting the car in neutral. this might aleviate the problem of intermittent starting.

Apr 18, 2010 | 2007 Audi A6 Avant Wagon

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

19 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...