Skip the auto shop - Our mechanics make house calls

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 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
  • Home
  • Questions
  • 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: My 2006 Kia will not start.

Hi there. If your engine stalled out and will not restart for the computer thinking that the transmission is in gear when its in park, then the transmission position switch (sensor) needs replaced. The switch (sensor) lets the computer know...

Q: My car is leaking coolant and the heat won't work

Hi there. From the description you have provided, this needs to be repaired before it turns into a catastrophic and expensive repair. The coolant leak could be a radiator hose, a heater hose, a bypass hose, the water pump, the...

Q: fuel filter

Hello. We will be happy to assist you. There are are a few things that I recommend a technician inspect. Fuel should have been inside the filter once you removed it. A test must be done to see if the...

Related articles

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...