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1991 mpv 3.0

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Old 06-08-2010, 04:22 PM
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Default 1991 mpv 3.0

Hi, I have a V6 MPV with 140k and always maintained professionally, according to the previous owner. But the idle fluctuates when started cold before it smoothed out when warm; even when it's warm, it still rev'ed with minor vibrations as indicated on the tachometer: 900 rpm plus or minus 10.

The following are what I have replaced: (1) Cap, rotor, wires and plugs; (2) ALL sensors checked within spec's: thermo, O2, intake air. (3) TPS and PRC tested OK.

On freeways it seems to be OK without any loss of power, but the best MPGs I get was only 21+

Can anyone help?

-Willie
 
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