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: Car won't accelerate

It sounds like you may have some problems that need to be looked at with some diagnostic equipment. The most common problem for this truck are the ignition coils that go bad and cause the engine to run rough. I...

Q: High speed bogging down

Engine misfires can be caused by a list of problems, but there are a few suspects that occur more than others. The primary culprits are simple – spark or fuel – usually manifesting in spark plugs, plug wires, the coil(s)...

Q: How do I properly install a transmission pan back on?

When installing the pan, the mating surfaces of the transmission and the pan should be clean, dry, and free of debris. To assure a good seal, I will usually use some brake cleaner, acetone, or any other type of solvent...

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...
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...
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...