Do I need a new CAT? Options

[ShadowPhantom]

When I first start the car and give it some gas the car sounds like a gurgling terd. Once it warms up it is much less noticeable. Sounds almost like a little marble bouncing around by the exhaust manifold with a bit of a sputtering sound. It only does it when it is in gear not when you rev the motor.

Anyone have any idea what needs to be replaced? CAT or manifold?

[DomGT]

When I first start the car and give it some gas the car sounds like a gurgling terd. Once it warms up it is much less noticeable. Sounds almost like a little marble bouncing around by the exhaust manifold with a bit of a sputtering sound. It only does it when it is in gear not when you rev the motor.

Anyone have any idea what needs to be replaced? CAT or manifold?

Neither, before you replace expensive stuff, I'd start with a tune-up, new spark plugs, wires, and O2 sensors.

[ShadowPhantom]

When I first start the car and give it some gas the car sounds like a gurgling terd. Once it warms up it is much less noticeable. Sounds almost like a little marble bouncing around by the exhaust manifold with a bit of a sputtering sound. It only does it when it is in gear not when you rev the motor.

Anyone have any idea what needs to be replaced? CAT or manifold?

Neither, before you replace expensive stuff, I'd start with a tune-up, new spark plugs, wires, and O2 sensors.

Actually it has a new cap rotor, plugs, wires, and I put a new O2 sensor in about 2 months ago (had a cell light). It was the 2nd sensor that is at the bottom by the firewall. What I PITA that was! Had to cut the old one off to get at the stripped bolts. Right by the O2 sensor on the exhaust pipe there is this little mesh tubepiece. It kept poking me. What is that? It sure looked beat to hell. The car is a 95. I thought it only had one O2 sensor? Does that mean it is a California emissions car?

Neither, before you replace expensive stuff, I'd start with a tune-up, new spark plugs, wires, and O2 sensors.

It does not seem to effect the performance of the car. It idles pretty good. Just sounds really bad.