Skip the auto shop - Our mechanics make house calls

Q: No crank no start

asked by on

Hello again well found power issue now im stuck trying to understand why it wont start or make a sound when trying to start it have had battery starter and alternator checked and all are good any other ideas....please help....lol....going crazy...thanks in advance

My car has 208000 miles.
My car has an automatic transmission.

No crank conditions are inherently caused by bad connections. The question to ask is where that bad connection is. As simple as this sounds, identifying a bad connection isn’t a factor of what a physical connection looks like. You can have solid connection right at the battery post to cable end, yet current won’t flow. Electricity works on the atomic level which, so testing for bad connections must be done with an understanding of electrical behavior that is not intuitive to the human mind.

The first thing I would do in this situation is check with a test light for power at the exciter wire at the starter. This should be done while someone is attempting to crank the motor. If there isn’t power while turning the key to the crank position, you will need to find a wiring diagram and continue using the test light to find where the power stops in the circuit.

If you have power at the exciter wire, you must now do the same test on the battery cables at several connections. Test them while someone is attempting to crank the motor. Effectively what you are doing is a voltage drop test. There are times where the test light isn’t enough and you will need to use a multimeter. But this is a more advanced technique that is best demonstrated in person.

If you still need help after trying this yourself, I recommend having a qualified mechanic perform an inspection of your hard start condition

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. No crank no start

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: Took engine from 4wd 1998 jimmy put in 2wd 05 sierra. Problem is transmission not engaging. What do i need to do?

Make sure the fluid level is OK. Check the shift lever and be sure it is actually moving the manual valve to the commanded position (Drive for example). To determine if the converter is functioning and/or if you have a...

Q: Starting problems, starter failure - 1994 Suzuki Sidekick

Hello. Make sure you double check to see if the starter is getting good connections and the cables are good. You may just have a starter that is common to only last a few years before wearing out. Make sure...

Q: Vehicle won't start, once it's jump started it only stays running until you turn it off, then it work start again without jumping.

Hi there. There could be two problems here. It is possible that your battery is bad and will not take a charge from your alternator while driving. In that case every time you shut your car off you will not...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...