Skip the auto shop - Our mechanics make house calls

Q: No lights or start after changing brake booster and switch on a 97 Silverado.

asked by on

I replaced brake booster, I noticed brake lights not working I took off and inspected the brake light switch. Now it won't start or even try, the headlights do not work, the hazards make a constant vibrating sound. The fuses are good, bulbs are good, I'm sure it's a wiring issue but I cant figure it out. The inside dome lights work and wiggling stuff sometimes gives the door open sound. It was working before I messed with the brake switch. I tried pushing together every wiring connection I could. Need help badly.

My car has 140000 miles.
My car has an automatic transmission.

Hello. You need to start by checking to make sure that you did not pinch any of the wires that run along the firewall. If you did, then they will need to be repaired. I would also check the battery.

If you did this with the truck door open then the vehicle battery may just be dead or it may have a loose connection. This is what I would suspect. If neither one of these are the problem, then a voltage meter will be needed for further diagnosis. If you want to have this electrical problem checked out, consider YourMechanic, as a certified technician can come to your home or office to diagnose the electrical system and follow through with any needed adjustments.

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
  • No lights or start after changing brake booster and switch on a 97 Silverado.

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: Just replaced head gasket, changed crack sensor new plugs. The check engine light is on, but dim, the only other light that the dash is a normal battery indicator. The fuel pump is not running when switch is turned on, the power windows don't work, it turns over but not firing. It's like only one part of the system is working. Also the heater fans work even if the switch is off.

I would first look at the diagnostic trouble codes. Those codes are available because the check engine light is on. If the fuel pump is not running (momentarily) at key on, that fault alone will prevent the car from starting...

Q: Car shaking and stalling while driving.

Hello, the place to start would be to have your check engine light diagnosed. I would recommend getting the aid of a mechanic to come out and connect a scanner to your vehicle and see what codes are present and...

Q: Intake manifold gasket preventive maintance

Hello. If the vehicle runs well and does not have any leaks then it may not be necessary, however, at 180k miles it would not be a bad idea to replace the intake manifold gaskets, especially if you plan on...

Related articles

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...
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...
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.