98 A4 1.8T roar sound - help!
#1
98 A4 1.8T roar sound - help!
I have a loud roar from the engine upon startup (1998 A4 1.8 T), which gradually dies down after about ten seconds after ignition. The rpms remain constant (normal) at idle upon ignition - i.e. the engine does not appear to be "racing". The sound only occurs about 50% percent of the time but its certainly noticeable when it does (the sound reminds me of the exhaust note from an old GM 2.8 v6). Otherwise the car drives fine - power good. Starts good.Quiet exhaust. Thanks for your help
#3
98 A4 1.8T roar sound - help!
In the the 1.8t its usually the lifters/valves that make noise on startup for a little while (sometimes it never goes away - in which case you have dirty lifters).
Sometimes a premium synthetic oil will solve this, but most of us 1.8ers have the engine noise on startup no matter what we do.
Sometimes a premium synthetic oil will solve this, but most of us 1.8ers have the engine noise on startup no matter what we do.
#4
98 A4 1.8T roar sound - help!
Thanks for replies, i might add that i use 5w30 Castrol syntec so the oil flow should be good. Don't get me wrong here fellas, this is a loud roar sound that is not synonymous with the usual smooth start of the audi 1.8...its only been happening for the last month or so. Is there a chance it could be the turbo/oil flow?
#6
98 A4 1.8T roar sound - help!
i had an engine whine on my 1.8t during normal driving startup</P>
audi ended up replacing the whole turbo </P>
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sometimes when i startup my 1.8t a4 and let it idle.. it sounds almost like a diesel type engine noise if you get what im saying.</P>
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is that normal?</P>
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what could be wrong with it, or nothing?</P>
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i bought it certfied pre-owned last may.. its an 00 a4 1.8t quattro with 36k</P>
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#8
98 A4 1.8T roar sound - help!
lifters can make you sound sort of like a diesel. I agree change your oil. If that doesnt work use a cleaner like 'Justice Bros lifter cleaner'. I got mine from ECS Tuning and it brought down my noise.
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jasmix
Audi A4
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02-01-2008 06:10 PM