Repair And Fix it

You should make sure that the back-up lights on your 2003 Cadillac CTS are always in functioning order, and not just for safety reasons. Theres also the chance that you could get a citation for driving with faulty taillights. The 2003 CTS uses a number 3157 bulb for the back-up lights. Changing the back-up lights on the CTS is a simple process, and all you will need is a screwdriver.

Instructions

1

Pop the trunk of the CTS and turn off the engine.

2

Rotate the plastic wing nut on the tire counterclockwise to loosen and remove it. Remove the tire from the trunk of the CTS.

3

Detach the two screws securing the taillight assembly to the vehicle, using a Phillips screwdriver.

4

Pull the assembly out of the vehicle and remove the top socket by rotating it counterclockwise.

5

Pull the socket out of the assembly. Remove the bulb from the socket and push a new bulb in.

6

Reinsert the socket into the assembly and rotate it clockwise to secure it.

7

Reinsert the assembly into the CTS and reattach the two screws.

8

Place the tire back into the trunk. Secure it by rotating the wing nut clockwise. Close the trunk lid.

Cadillac had three engines in its lineup for 1976. Two of the engines were different versions of the 500 cubic-inch V-8, which was one of the largest engines on the market, and the third engine was a 350 cubic-inch V-8.

Standard

The standard engine in 1976 Cadillacs was the 7.7-liter 500 cubic-inch V-8 engine. This engine had a four-barrel carburetor, a compression ratio of 8.5-to-1, a bore and stroke of 4.3 inches and put out 190 horsepower. It had 360 foot-pounds of torque and could power the Calais to 130 miles per hour.

Potential

The fuel injected version of the 500-cubic-inch V-8 was a 8.2 liter engine that could produce 210 horsepower. It had 380 foot-pounds of torque. The rest of its dimensions were the same as the other 500-cubic-inch engine.

Significance

While Cadillacs were known for their size and power, refinement of the smaller Seville continued in 1976. The smaller car had a 350-cubic-inch V-8 engine that produced 180 horsepower and 275-foot-pounds of torque. It had a compression ratio of 8-to-1 and fuel injection.

In 1976, the standard engine on the full-size Cadillac was the 7.7 liter, V8, 500-cubic inch which provided the smooth ride and power that Cadillacs of the time were known for. In a year of transition, as the company rolled out smaller engines in its Seville, the 1976 500 was one of the last massive V8 engines to be found stock in a Cadillac.

Size

The Cadillac 500 is a 500 cubic inch engine, which is massive by modern standards and of respectable size by muscle car standards of the fifties and sixties. Matching this size with a 7.7 liter capacity, the 500 was capable of plenty of power.

Cylinders

The Cadillac 500 ran eight cylinders, making it a V8 engine. These engines are rarely found today, as the economy is more concerned with fuel efficiency than raw power. However, these engines were common in the seventies and are still used on cars designed for racing and high-torque trucks made for hauling, as well as high-end sports cars.

Fuel delivery system

Utilizing a carburetor system for fuel delivery, the Cadillac was not able to take advantage of soon-to-be-developed fuel injection, but rather relied on the tried and true system that automobile combustion engines had been using since their inception. Easier to maintain and adjust th,e carburetor was the standard for at least ten years after the 500 was no longer produced.

Model years

The 500 was used on 1971 to 1976 model years, with a short five-year run that reflected the changing idea of how a car should run in the seventies.