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.

A: Hello. You need to start by checking to mak...

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!

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: Bolt broke by thermostat

There are a lot of malfunctions that can cause a car to overheat. Low coolant level, worn water pump, sticking thermostat, internally clogged radiator, externally clogged radiator, improper cooling fan operation, sludge coated water jackets, collapsed hoses or bad head...

Q: My Check Engine Light is on with a code for the engine control module

Unfortunately, without diagnosing the car using a scanning tool to download any potential trouble codes there is no way to tell what other codes may be causing this light to come on. There many different trouble codes that can also...

Q: Rotor moves freely about 1/4 inchback and forth

Hello. If the distributor shaft has that much play, it will cause erratic ignition timing and possible misfiring. Possible causes could be the distributor shaft or drive gear being excessively worn or broken causing the movement. Continued driving with misfires/backfiring...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...