On 2007-05-04 21:27:44 -0400, motsco_ <motsco_@interbaun.com> said:

> Slim wrote:
>>
>> 1996 Civic DX Coupe 77K
>>
>> I have noticed a knocking noise from the engine at 35-40 mph.
>>
>> No loss of power or gas mileage, just a strange
>> "chugga-chugga-nok-nok-nok" at 35-40 mph. Its not very loud, but
>> notciable.
>>
>> Any guesses? Clogged injectors?
>>
>> Last major service was at 60K (rotor/distcap/plugs/wires..etc)
>>
>> Any help appreciated.
>>
>> Thank you all.
>>
>> -Slim
>>
> ------------------------------
>
> See what the owner's manual says about how fast you can go before
> shifting. Try splitting the difference and I expect your knocking will
> go away. (interpretation: don't 'lug' it. Stay in lower gears until
> you're at highway speed)

Thanks, but its an Auto.

The problem happens when I am coasting at 35-40 and hit the gas lightly.

I followed Earls advice and filled up with premium ($3.45 in NYC) and
drove it for three hours on the thruway...seems to be a lot less noise
now. I will go through a few tanks of premium in the hope this will
clear up.

Thanks again!

-Slim