1993 BMW 325 HELP!

Tiny
JESSICA774U
  • MEMBER
  • 1993 BMW 325
Engine Performance problem
1993 BMW 325 Manual LOTS miles

My car recently started acting weird. The MPG gauge is going bonkers and it back fired and the when you give it gas it doesnt have the power it normally does. It also made a weird sound when driving it while I was shifting like the muffler makes (has the racing kinda sound from the muffler) but it was more muffeled and I was not touching the gas pedal. It was just weird. I love this car but I was told maybe it needed new spark plugs and wirers. Could that be all the cause espcially for mpg gauge to go bonkers? The check engine light is not on. So I am clueless. And dont want to get raped when I take it for repair :)
Monday, March 9th, 2009 AT 1:57 PM

1 Reply

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Backfiring can be caused by an intake manifold leak, possibly something has been happened that the backfire has exacerbated. When was the last time the vehicle had an Inspection II service performed by a competent BMW technician?
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Tuesday, March 10th, 2009 AT 6:30 AM

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