I have changed the oil, oil filter, tranny fluid, tranny filter, spark plugs, wire, cap, rotar, and fuel filter. My question is that my caddy still sounds like it is going to die when I put it in Reverse or Drive, but in Park or Neutral it will run okay. I was wondering if that would be my fuel pump or injectors that would be causing it to ack that way.

For a standard tune-up, the parts needed include an air filter, oil filter, fuel filter, spark plugs, and spark plug wires. You should also have oil, transmission fluid, coolant, windshield washer fluid, and brake fluid available. A tune-up consists of topping off or replacing fluids, changing spark plugs and spark plug wires, changing the fuel, oil, and air filters, and checking the pressures of the tires. More detailed tune-ups run a diagnostic test on the vehicle to check for any codes that indicate additional issues.

Thanks for choosing FixYa and welcome. For a tune up, you would need to change spark plugs, coils, distributor cap, coil pack, and wires. You would change the air filter and the fuel filter also. Change your pcv valve as well. You can also change all your fluids and filters, such as oil, coolant fluid, and transmission fluid.

it is fuel injected and the injectors are in a manifold at the inlet manifold
most misfires are injector related ( dirty tips , low fuel pressure or injector wiring harness) get a workshop manual from an auto parts shop

- Spark Plugs (make sure they are gaped properly)
- Spark Plug Wires
- Coil Packs (if needed) or Distributor Cap & Rotor (which ever so equipped)
- Air Filter
- Fuel Filter
- Oil
- Oil Filter
- Transmission Filter (optional)
- Transmission Fluid (optional if you do change the trans filter you will need the fluid)
- PCV Valve (optional)
- Bottle Of Fuel Injector Cleaner (add to fuel tank kind)

depends on how much you want to spend.

tools you need.....socket set with a 5/8 sparkplug socket,plug gapper tool, and the proper gap
parts you need, sparkplugs,plug wires,fuel filter,air filter. replace each plug one at a time, change plug wire at same time. there should be no other adjustments needed as its all controlled by computer.

I would change the spark plugs, spark plug wires, distributor cap and rotor, fuel filter, check and change air filter if dirty, check timing, check and top off all fluids, check or change transmission fluid, check brake pads/.shoes and drums/rotors for wear and check tire pressure, check the condition of all belts and hoses and replace as needed, check condition of radiator antifreeze and top off or replace as needed.

Change the following:

oil, tranny fluid, and filters: air filter and fuel filter as well. Fill up tank and add 1 can of SeaFoam. Change spark plugs, wires, coil wire if distributor is present - as well as cap and rotor.

If coil packs are present, repalce the plugs and wires, air filter, fuel filter, and have the catalytic converter tested to make sure it's not plugged. This test will also let you know if the O2 sensor(s) are bad or not.

Please let me know if you need any further assistance.

NOTE: start with the cheaper: air and fuel filter. Then work your way up.

carsandcomps,

Guru, Premium Expert @ Fixya.com

u need to ck for spark & fuel,,pull off one plug wire & put a spark plug in it,,lay the plug on the exhaust manifold so u can see the spark plug electrodes,,have someone turn over the motor look for a spark,,,or buy a spark tester,,,

ignition coil distributor cap rotar culpurlt

A full tune up consists of spark plugs, distributer cap. wires. rotor for under the cap, air filter and if you want you should change the fuel and oil filter. I hope this helps.