FUEL PUMP ON 2005 MAZDA 3 2.3 LITER

  • Tiny
  • Missyg
  • 2005 MAZDA 3
  • 4 CYL
  • 2WD
  • AUTOMATIC

I need instructions on how to replace the fuel pump on 2005 mazda 3 2.3 liter. The check engine light came on several months ago (about 6-8) and I took it in for routine maintenance and had them check it out. I was told the fuel pump was getting "sluggish". For a couple of months now the car has been hard to start after putting gas in and is now stalling at times when sitting at traffic lights, etc.

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Friday, August 12th, 2011 AT 4:10 PM

7 Replies

  • Tiny
  • KHLow2008
  • EXPERT
  • 41,986 POSTS

The fuel pump would not trigger the CEL. What were the exact trouble codes retrieved?

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Friday, August 12th, 2011 AT 4:20 PM
  • Tiny
  • Rasmataz
  • MEMBER

To rule out the fuel pump as the problem, you need to check the fuel pressure with a gauge if its within specs

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Friday, August 12th, 2011 AT 4:24 PM
  • Tiny
  • Missyg
  • MEMBER

I don't know what the trouble codes were. The mechanic just said that they checked it out and the only thing that showed any sign of a problem was the fuel pump. I didn't feel the need to replace it right then and figured I would wait until I had to replace it. Now I do not have the money to take it in to the repair shop to have it done and thought I would try it myself. I have a friend who replaced hers with a video on youtube.

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Friday, August 12th, 2011 AT 4:35 PM
  • Tiny
  • KHLow2008
  • EXPERT
  • 41,986 POSTS

Most parts stores provides free scanning services. Go get the code and we shall see what needs to be done.

Replacing a component without understanding what is wrong could be a waste of time and money.

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Friday, August 12th, 2011 AT 4:39 PM
  • Tiny
  • Missyg
  • MEMBER

OK. If I get a code you will know what the code means? What I'm asking is are the codes universal, meaning everyone uses the same ones?

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Friday, August 12th, 2011 AT 4:45 PM
  • Tiny
  • KHLow2008
  • EXPERT
  • 41,986 POSTS

Yes, OBD-II codes are universal. It will tell us what component/system is at fault. We can go along the codes to diagnose and rectify the problem.

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Friday, August 12th, 2011 AT 4:48 PM
  • Tiny
  • Missyg
  • MEMBER

Ok. I will get that done as soon as possible and let you know. It may be later this afternoon.I think I will call the Mazda dealership I took the car too before and see if they will give me the codes.

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Friday, August 12th, 2011 AT 5:01 PM

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