Rev limiter?
1/4 mile/AutoX
Joined: Jun 2014
Posts: 11,441
Likes: 2,186
From: Buffalo Texas
My 99 manual does at 6200 (was raised with a tune from 6000) if you hit 7400 I think your engine would be in pieces, or at least I would think so !!!!!
Drifting
Joined: Jul 2015
Posts: 1,844
Likes: 375
From: San Jose, CA
Have you been manually downshifting in your automatic at highway speeds? If not, you should be fine. (Even second gear at highway speeds in the A4 shouldn't go to 7400, should it? Second is 2.33 the ratio of fourth, and if you're at 2500 rpm at highway speeds, shifting to second would only be 5800 rpm.)
Acct Suspended APR 2026 by request
Joined: Dec 2010
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2020 Corvette of the Year Finalist (performance mods)
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do you know if the tune has been altered?... 7400 is crazy high for an internally stock engine... if it is really revving that high I wouldn't expect the rod bolts to last very long if you continue to do that, especially on a 97
Drifting
Joined: Jul 2015
Posts: 1,844
Likes: 375
From: San Jose, CA
Hum. I might grab an ELM327 and the torque app or a similar app for your phone, whatever out there can log your RPMs for you. Drive around with that, review the data, see if your RPMs are ever reported to go that high. I would guess this is a spurious event, not real; 7400 is almost a thousand higher than your redline, and the automatic transmission should never let that happen.
