Skip the auto shop - Our mechanics make house calls

Q: My truck won't start, battery is good, alternator is good, don't know if its starter, was told might have to change neutral lock.

asked by on

How do i figure out what it is without being able to move it because it won't start and it will cost more to tow it.

You will need to test the small yellow wire with a blue stripe that goes to the starter and powers it when the ignition switch is turned to start. If the the wire checks out with power then the problem is with the starter. If it does not get power, test the start relay in the junction block to see if it clicks when you turn the ignition switch to start. I would try swapping it with another relay. I’d then suggest scanning the computer for input from the transmission neutral switch to the computer if the problem continues.

Since you can’t get the car started, consider getting some assistance from a mobile mechanic such as YourMechanic. A qualified technician can come to the location of the car to diagnose your starting issue and fix it accordingly. Good luck.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. My truck won't start, battery is good, alternator is good, don't know if its starter, was told might have to change neutral lock.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: engine idle increases after shifting into park

You should first check for any vacuum leaks that would cause the engine to idle higher than normal. Even your idle in gear sound a little high. If no vacuum leaks are found in the intake or the brake booster,...

Q: Car overheating

Hi Jose. A car will overheat due to multiple reasons, ranging from a faulty thermostat, radiator fan or even failing water pump. Without being there to [inspect your PT cruiser personally by completing a car is overheating inspection, it's very...

Q: Key won't turn in the ignition 1978 Ford Mustang II

Hi there - there a couple of possible faults preventing your ignition key from turning in the ignition lock cylinder. First is that the key is sufficient worn, or the lock tumblers themselves, that they are simply not moving the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...