I take it the tune up is in good order (Fuel Filter?). The rough idle may be due to a misfire, but theway you describe it, it may just be a bad motor mount, when in D theengine loads differently than in R, so it may feel like the roughness goes away, but it is just loading against a good mount so you dont feel it. If you rev the engine in P does it rev up without hesitation or is it slow til about 3000 then revs up normal? Had any work been done prior to this issue?
Sunday, February 21st, 2010 AT 7:35 AM