Recently I noticed that when I try to accelerate with my 1998 A4 (automatic) it makes a strange sound that sounds like the car is bogging down and there is a slight jerk at around 20-35mph with a slight loss of power. The car has about 130,000 miles the timing belt was changed at 74,000 and the transmission had a fluid change 10,000 miles ago. I don't know what the problem could be, the check engine light is not even on.

 

are you chipped? is it 1.8T 2.8? u using an MBC?

 

When was the last tune up??

 

No the car is completly stock, I have a feeling its the trans because the car always gives me this problem of jerking between 20-35mph. Also when I have at a light holding the brake pedal, the rpms go down a little and the engine sounds like its losing power for a few seconds.

 

Whats the sound resemble? A honking goose?

I am guessing a bad DV or a vacuum/boost leak.

 

sometimes i hear that weird honking noise in the morning i thought it was a vacuum is it bad and how can i stop it. i have a 2.8 30v

 

well we still dont know if its a 1.8 or 2.8

 

Hey what iv been dealing with is a misfire on my car iv been chasing around for a month and what it does is when it misfires the engine jerks a little trying to go but when it first started didn't throw the light until was real bad. Also i think think the loss of power we have at least me my turbo wouldn't spool up cas the compression was off. My car is at 150000 also

 

with that you should check the gap on your plugs,

 

LOL - yes that is true.