Hissing during acceleration
#1
Hissing during acceleration
98 A4 2.8QA that sounds like a snake when accelerating. doesn't seem to do it while parked and revving. i've been dealing with it for a while but now i'm starting to notice a lack of power especially in the lower registers. any ideas as to what this could be?
#2
Possibly a vacuum leak. Check around the intake and SAP piping, as well as the vacuum lines on the solenoid panel on top of the engine. Might just as well replace them - they're likely brittle and could stand to be changed. Only takes about 45 minutes to do all of them.
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