Deville Idle Up And Down At Times
mikegenuine
08-01-2008, 11:38 PM
I own a 1999 deville 77k, idle goes up and down, could it be the fuel pump, idles normal at times, also sometimes takes two starts to crank over. THANKS
DFBonnett
08-02-2008, 07:07 AM
Could be as simple as a dirty throttle body and plates.
BIGDADDY0034
10-04-2008, 12:09 PM
Have you tryed changing the fuel filter?
christianmorrill
12-11-2008, 11:11 PM
Have the same problem with my 98 104K miles
cadi509
12-22-2008, 12:59 PM
there is an idle speed motor on the engine should be on the top with fairly easy access its round with a rod sticking out the top of it this controls the idle speed
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