Skip the auto shop - Our mechanics make house calls

Q: 04 dodge Durango, 3.7 just changed engine,battery,and starter. Still won't crank over, getting power to solenoid,when key is turne

asked by on

04 Dodge Durango 3.7 put in new engine starter battery good connection good power to all will not crank over when key is turned

The most important thing to understand about electricity is it occurs on the atomic level. What appears to be a good connection to the human eye may not be to electricity. This is why we have test lights and multimeters for testing. It you have power to the solenoid, is the solenoid clicking? If it is, then that indicates the the primary circuit, the circuit from your key to the starter solenoid is working. You might want to see if a full twelve volts is available at the solenoid. I have seen many times where the solenoid is not recieving enough voltage and it won’t engage the starter.

If it is getting twelve volts, you want to make sure there is power at the battery cable where it connects to the starter, when you are attempting to crank the motor. Bad connections will become apparent when you are making them work. Such as during the action of turning the ignition key to the start position. A test light is good for this. It is fairly common for the bad connection for a starter to occur at the battery cable post to cable end. When attempting to crank the motor, there will be power at the battery post, but it will stop at the cable end. This would be a bad connection at the battery post. You can test both the positive and negative terminals this way. Perform this same test where the battery cable connects to the starter.

If these connection test good, the next thing to consider is a bad ground between the starter and the engine block. If the block is painted where the starter is mounted, this can be the culprit. Testing for this is best done by performing a voltage drop test. A voltage drop test is difficult to understand without an in person demonstration, so I won’t attempt to explain it here. But if there is paint or something else that is not metal between the starter and block, clean it off or add a large ground wire. I have had to do this every once in awhile.

If you should still need assistance with this, I recommend having an inspection for why your car isn’t starting.

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!
  • Home
  • Questions
  • 04 dodge Durango, 3.7 just changed engine,battery,and starter. Still won't crank over, getting power to solenoid,when key is turne

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: Car suddenly not starting - 1997 Honda Civic

Hi there. It sounds like a failed starter or battery. Have a battery test performed with a digital battery tester that provides the cold cranking amps and state of health. Check all fuses/relays and replace as necessary. Perform a voltage...

Q: Problems with shifter

Hello, I am assuming that your shift is hard to get out of park and maybe past reverse. In August of 2010, Dodge put out a campaign for this issue. A campaign is not a recall, but it is similar....

Q: Flashing lighting bolt and traction light on, truck will not go over 2000rpm

The lightning bolt light in the Dodge Durango is related to the throttle body. The throttle body is what is responsible for delivery of fuel to your car's engine. This can come on for a couple of different reasons. Commonly,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...