In this case check the charging system parts in your vehicle,that are battery and alternator. Check the battery to alternator connections.Could be a fuel system problem. Check operating pressure and bleed down pressure.Next time it happens, hold the accelerator pedal to the floor and crank.If it starts, try and remember what the shutdown condition was. Could the idle have been a bit high?----------But if the fuel pressure,the battery the alternator all checked out ok then there is a possibility that ignition switch circuit is getting short.--------------
The ignition switch is fed it's 12v battery voltage through the white wire with a black tracer (WH/BK) in terminal 2. this wire should have battery voltage and should light a test light at all times.The Ignition switch then sends the crank signal back through the white wire with a green tracer (WH/GN) in terminal 3. This should have battery voltage when the key is turned to the start/crank position.If you have voltage there, then check the purple wire on the starter while cranking. If the purple wire to the starter has power, then the starter may have failed.---------- There are multiple contacts inside the switch that feed various circuits and they often get burned and become intermittent.You will need to remove the kick panel under the dash, and the knee bolster panel under the steering wheel to access ignition switch connector.This will help to check the ignition switch connections and voltage to the switch.---------- Thanks.Helpmech.
Something you may try, that's easy to do. Look at your battery and see if it's a maintenance free battery. If it isn't, you should check the levels in the battery.
When levels are low the minimum effect is, the battery will not fully recharge from the alternator output. Therefore, you may not have the minimum cranking amps your vehicle requires.
A more serious effect of low levels, it can lead to a dead cell in the battery.
If you are in an area of cold/cooler weather, this adds to the demand on the battery.
In your travels you could stop by a parts store and have the alternator and battery put on a diagnostic computer to insure both are working correctly. Most parts stores do NOT charge for this test.
Answers & Comments
In this case check the charging system parts in your vehicle,that are battery and alternator. Check the battery to alternator connections.Could be a fuel system problem. Check operating pressure and bleed down pressure.Next time it happens, hold the accelerator pedal to the floor and crank.If it starts, try and remember what the shutdown condition was. Could the idle have been a bit high?----------But if the fuel pressure,the battery the alternator all checked out ok then there is a possibility that ignition switch circuit is getting short. --------------
The ignition switch is fed it's 12v battery voltage through the white wire with a black tracer (WH/BK) in terminal 2. this wire should have battery voltage and should light a test light at all times.The Ignition switch then sends the crank signal back through the white wire with a green tracer (WH/GN) in terminal 3. This should have battery voltage when the key is turned to the start/crank position.If you have voltage there, then check the purple wire on the starter while cranking. If the purple wire to the starter has power, then the starter may have failed.---------- There are multiple contacts inside the switch that feed various circuits and they often get burned and become intermittent.You will need to remove the kick panel under the dash, and the knee bolster panel under the steering wheel to access ignition switch connector.This will help to check the ignition switch connections and voltage to the switch.---------- Thanks.Helpmech.
Something you may try, that's easy to do. Look at your battery and see if it's a maintenance free battery. If it isn't, you should check the levels in the battery.
When levels are low the minimum effect is, the battery will not fully recharge from the alternator output. Therefore, you may not have the minimum cranking amps your vehicle requires.
A more serious effect of low levels, it can lead to a dead cell in the battery.
If you are in an area of cold/cooler weather, this adds to the demand on the battery.
In your travels you could stop by a parts store and have the alternator and battery put on a diagnostic computer to insure both are working correctly. Most parts stores do NOT charge for this test.
I hope this helps.