Ok,
lately my car has been feeling really sluggish and acceleration is not always there.... i got no check engine lights on....

sometimes when i start the car, the idle bounces from 900 - 400 and makes a weird vibration.

the problem also occurs when i turn the A/C on, i hear the engine shake and the idle bounces....

anyone know what might be wrong?
bad spark plugs? something to do with the A/C belt?

Thanks!!

 

Check for vacuum leaks, clean your MAF, change your PCV. And then we can go from there afterwards.

 

i would say Vacuum leak for sure if idles jumpin up and down... get some carb clean and spray around the manifold or where ever and if ill drop/goes up then there u go..... dont remember if it goes up or down haha

 

If the above doesn't work take a look here:

High engine idle speed (Poor idling)
1. A/C signal circuit (Compressor circuit)
2. ECM power source circuit

Low engine idle speed (Poor idling)
1. A/C signal circuit (Compressor circuit)
2. Fuel pump control circuit

Rough idling (Poor idling)
1. Compression
2. Fuel pump control circuit

Hunting (Poor idling)
1. ECM power source circuit
2. Fuel pump control circuit

Surging (Poor driveability)
1. Fuel pump control circuit

During A/C operation (Engine stall)
1. A/C signal circuit (Compressor circuit)
2. ECM