rick1024
Member
Been having an issue with my idle not being consistent and the motor bogging lightly when accelerating. Sometimes the tahoe idles at 500rpm, sometimes at 750rpm and sometimes 900rpm. The idle is a bit rough. When accelerating sometimes I really have to put the pedal down hard to get it to move. There are times when it really feels like its struggling to get moving. Sometimes with light consistent pedal pressure it will downshift for no reason, but not at an alarming rpm where it could be damaging. Tahoe has a CAI from speed engineering, cat delete, canned tune from diablo (had the same issue without the tune) and just recently changed the spark plugs. Car has 175k on the clock. Any ideas?