:( Advice Needed. 89 just did something weird...
Thread Starter
Melting Slicks
Joined: Mar 2003
Posts: 3,401
Likes: 0
From: NJ
:( Advice Needed. 89 just did something weird...
Hi all, need some advice on something that just occurred with my 89 Auto (only mods are a high-flow cat and magnaflow cat-back).
About 45 minutes ago, I started it up (it had been warm from recently being driven) drove about 2 minutes and then heard a kind of "clink" noise come from under the hood. Immediately the car lost "some" power, not a lot but enough that it wouldn't down shift into 2nd if I floored it. The exhaust also immediately had a more "throaty" tone to it...kind of hollow sounding.
I drove it about 30 minutes home and all the temps were normal, the loss of power and the exhaust were the only things notable. Got home, checked the oil (thought maybe a possible head gasket) and coolant...both fine. No leaks as far as I can tell.
Any ideas on what it may be? I'm a fairly novice mechanic so I'm really at a loss...
Thanks for any thoughts or suggestions!!!
About 45 minutes ago, I started it up (it had been warm from recently being driven) drove about 2 minutes and then heard a kind of "clink" noise come from under the hood. Immediately the car lost "some" power, not a lot but enough that it wouldn't down shift into 2nd if I floored it. The exhaust also immediately had a more "throaty" tone to it...kind of hollow sounding.
I drove it about 30 minutes home and all the temps were normal, the loss of power and the exhaust were the only things notable. Got home, checked the oil (thought maybe a possible head gasket) and coolant...both fine. No leaks as far as I can tell.
Any ideas on what it may be? I'm a fairly novice mechanic so I'm really at a loss...
Thanks for any thoughts or suggestions!!!
Thread Starter
Melting Slicks
Joined: Mar 2003
Posts: 3,401
Likes: 0
From: NJ
Race Director
Joined: Nov 2004
Posts: 14,176
Likes: 142
From: Central Il
I don't know about the downshifting. It might if it was losing enough power. To me, it's the change in your exhaust note that makes me believe it's a cat failure. If it fails and creates a clog (too much back pressure) it can rob a lot of power.
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Thread Starter
Melting Slicks
Joined: Mar 2003
Posts: 3,401
Likes: 0
From: NJ
Hopefully that's it!!!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas