Hello,
The last two days I have been having a really rough idle on my Golf. Yesterday afternoon, when I started the car and got to my first traffic light, it felt like it was going to stall. So I gave it a bit of gas and it was OK (note the AC was not on at this point if that matters at all). It did this until I got on the highway, and by the time I got home it seemed OK when at a stand still.
Today, it was fine early on, but once I got to work it was idling really roughtly. I had the AC on while on the highway, but turned it off for local streets about 10 mins before I got to work and parked. So once I parked I just let it go to see if it would stall, but it never did. After idling for a few minutes it seemed to be less rough.
I have always had a light knocking from the front of the car (engine?) when idling in park (about 4-6 per sec - with or without AC on). But as I let it idle longer today, the knocking just got faster and faster until it sounded like a constant noise. It may have always done that but I never let it idle in park so I dunno.
Any suggestions? I have had a MAF replaced within the last 6 months, and I just had a new battery put in within the last month. Oil is good (5w30 sythetic) and I use 89 octane gas. Oh, and yesterday I hit 60,000 miles. As usual I am hoping for something simple that my mechanic can do since I try to avoid the dealer like the plague.
Thanks for helping my poor little Golf. ;)
-Pete