2004 Mazda 3 rough idle

Tiny
SMOCKLEYBOHUNK
  • 2004 MAZDA 3

Engine Performance problem
2004 Mazda 3 4 cyl Front Wheel Drive Automatic 65000m miles

when I put the gas cap back on after filling the car the engine starts rough until I give it some gas using the pedal then it seems to be ok. I have noticed sometimes at a stop sign or lights it idles a little rough.

Do you
have the same problem?
Yes
No
Friday, August 13th, 2010 AT 1:36 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER

Engine running rough or misfiring can be cause by the following:

1. Defective spark plug
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Idle air control valve.

Was this
answer
helpful?
Yes
No
+1
Friday, August 13th, 2010 AT 6:52 PM

Please login or register to post a reply.

Other Engine Idle Rough Questions