Q: What would cause the motor not to crank and the dash lights to stay on? 2005 Chevy Silverado 2500

asked by on

I changed the motor in my Chevy Truck and now the dash lights and headlights won't go off and my truck won't crank
My car has an automatic transmission.

Hi - check fuses first, then check the engine wiring harness, especially the starter wiring, for correct re-connection. The behavior suggests either no engine-to-chassis ground, or incorrect wiring. Either or both appear to be "back-feeding" 12 volts to the dash lights and headlights. If you are unable to make headway, and wish to have some assistance, I would recommend an inspection of the engine wiring by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. What would cause the motor not to crank and the dash lights to stay on? 2005 Chevy Silverado 2500

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: Starting issue, fuel smell

The fuel pressure would need to be checked to make sure the pressure regulator is not leaking fuel and that the pressure is correct. You may have a leaking injector if the pressure is okay. I recommend having a certified...

Q: Random gear shifting

Hello, it sounds as if you have a faulty transmission pressure control solenoid or contaminated fluid. Also, the electronic gear shift sensor under your gear shift could be compromised if something has spilled on it. I suggest that you have a...

Q: Voltage drop noticed during night driving. The headlights dim and then return to normal.

This may be a sign of a failing voltage regulator or potentially a bad ground connection. As you may know, the voltage regulator regulates the charging of the battery by the alternator. When the voltage regulator is not working properly,...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.