Q: No crank no communication no start chevy

asked by on

I have recently changed the transmission in my lumina 2004 after changing it my car is not showing engine light cranking but not starting and no communication to computer at first the security light was blinking but now its not flashing when insert the key have checked the fuses every thing is fine had also replace ecu but still the same no communication and also replaced the transmission chip to my old transmission chip but still nothing plz help?

My car has 200000 miles.
My car has an automatic transmission.

Hello and thank you for contacting YourMechanic. The issue that is occurring is the wiring to the range switch on the transmission. Try taking the range switch, the switch that is on the shifter to the transmission, from your old transmission and put it on. If the old transmission is no longer available, then I suggest replacing the range switch with a new one. This is a common problem with many Chevrolet vehicles. If you need assistance in troubleshooting your no start situation, then seek out a professional, preferably a YourMechanic professional to help you with your vehicle.

Was this answer helpful?
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. No crank no communication no start chevy

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 2004 f150 4.6l 2v was overdue for oil change started ticking noise super low on oil. What could the ticking noise be?

Hi Mike. Thanks for contacting us today. We recently answered your question, but in case you didn't receive it - here is what we said. The ticking noise is typically caused by low oil levels or low oil pressure problems...

Q: How do you operate the manual transmission?

If your vehicle is equipped with a manual transmission, you have the ability to select the gear you want on your own (the transmission doesn’t work automatically). You’ll need to shift gears while driving according to your speed and performance...

Q: The gasket is deteriorated in the intake manifold gasket

If the gasket does have to be replaced it is replaced as a "whole". There is no partial intake manifold gasket. Please note that the code you are writing in about, Diagnostic Trouble Code P0171, can set for many reasons...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.