ENGINE LACKS POWER

  • Tiny
  • Brian Naragon
  • 1999 Mazda b3000
  • 6 CYL
  • 4WD
  • manual
  • 96,000 miles

Sorry, this is a repeat question, I had some computer issues as well as vehicle issues. I have a '99 b3000 Mazda, it lacks power in 4th and 5th gears. The engine hits about 2500 rpm and then it takes a while to climb over the hump. I have replaced the fuel filter and regapped the plugs. Also, put some Lucus fuel injector cleaner and mid-grade gas in. It seems to be getting better, but has a long way to go. The clutch is not slipping. What else could it be?

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Sunday, November 14th, 2010 AT 5:10 PM

2 Replies

  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

Was the ignition timing checked?
Did this problem occur after any repairs?
Have you checked the throttle operations? Is it opening fully when pedal is fully depressed?

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Sunday, November 14th, 2010 AT 6:07 PM
  • Tiny
  • Brian Naragon
  • Member

No, the timing was not checked. No, the performance did improve after gapping plugs and changing fuel filter. Still much room for improvement. No, I havn't checked the throttle, but it seems to be okay in 1st-3rd.

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Sunday, November 14th, 2010 AT 7:42 PM

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