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running poorly 700 1986

posted by  someone claiming to be rich wood on  Fri Jun 1 07:04 CST 2001 [RELATED]

My 740GLE is running poorly. The idle is up and down a bit (500 - 700 rpm)

The O2 sensor & cat converter have been replaced. The bothersome item is

a sound from under the car that resembles a the air coming out of a baloon

(squeeling sound). I believe its coming from the fuel pump. I did replace

the pump recently but the noise persists and the car runs poorly.

I also hear a click under the engine everytime the idle drops to a lower rpm. The rpm's slowly come up again to around 750rpm then drop

Let me know if anyone has any thoughts





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