Q: surging motor 2003 buick v6?

replace fuel filter , plugs, disconnected masss air filter. No help, could new fuel filter be bad? December 27, 2009, 2:50 am HAROLDBOWERMAN good at idle runs up to about 3k rpm then pauses for about 1 sec then surges back for couple of secs then surges again, cold or hot does not matter. u can feel surge up & down when accelerating up to about 35 then is alright. no scan, what is egr? TIA

Mechanic Q: surging motor??

replace fuel filter , plugs, disconnected masss air filter. No help, could new fuel filter be bad? TIA

A: surging motor??

good at idle runs up to about 3k rpm then pauses for about 1 sec then surges back for couple of secs then surges again, cold or hot does not matter. u can feel surge up & down when accelerating up to about 35 then is alright. no scan, what is egr? TIA