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"Ray O" <rokigawa@tristarassociatesDOT.com> wrote in message
news:1d706$43908879$44a4a10d$25724@msgid.meganewsservers.com...[color=blue]
>
> "Dan" <drnwnr@hotmail.com> wrote in message
> news:1133544688.753335.53540@z14g2000cwz.googlegroups.com...[color=green]
>> Hi,
>>
>> '95 Corolla 4A-FE, 80k miles, pings under load (when climbing hill),
>> mainly on days when the air is dry. It also seems to have a harder time
>> climbing.
>> The car eats some 1/2 quart of oil between changes.
>> I tried several brands of fuel additives with no improvement.
>>
>> Timing belt is the original. Could changing the belt fix the pinging?
>> Or maybe the timing needs to be adjusted?
>> How is this done on a 95 Corolla?
>>
>> Thanks.
>>[/color]
>
> You should think about changing the timing belt although it will not have
> any effect on the pinging.
>
> Fuel additives rarely have any effect on pinging.[/color]

Actually. i have found either adding Techron or switching to Chevron (now
unavailable in New England!) helps quite a bit with pinging. About $7-9 a
bottle at CarQuest, AutoZone, etc.

Not sure if Wal*Mart (OH DAMN! I said Wal*Mart) has it or not.

[color=blue]
>
> Some things to try or check: - Use a higher octane fuel to see if the
> pinging is reduced.
>
> Do you have a check engine light?
>
> Check the knock sensor and spark advance.
>
> Check the base timing.
>
> If these all check out OK, then you may have internal engine deposits.
> --
> Ray O
> correct the return address punctuation to reply
>[/color]