Hi
My 98 Acura Integra w/ 120k miles on it has pretty much been trouble- free. But recently I noticed the engine noise changes to a throaty growl when I step hard on the accelerator like when you would do on a highway ramp or merging into a faster lane. Its hard to describe the noise but if the normal engine noise is "rrrrrrrrrrrrrrrrrrr" then the changed one is more like "RHRHRHRHRHRH"
:-)
I should mention that my last oil-change was a bit delayed, after about 7500 miles instead of the usual 3500miles, not sure if that caused it.
I fear to take it to the dealer's service center in case they tell me to just replace the engine. Short of that, any clues what might be wrong, or where I should start looking?
Thanks in advance
Cherukan