Re: need help with 95 mustang knocking
- From: jim <"sjedgingN0sp"@m@xxxxxxx>
- Date: Thu, 24 Jul 2008 07:01:41 -0500
genius wrote:
Hey all. I am in need of help again. The car is a 1995 Mustang GT
with the 302, 5 speed, ~90 miles. It?s mostly stock except for an air
intake. I have noticed it intermittantly knocking when the engine is
warm and at WOT usually between 2800 and 4000 RPM in 3rd and 4th
gear. I only run premium fuel (91 octane) in it and it seems fine
otherwise. Plugs, wires, cap and rotor were changed 2 years ago along
with air and fuel filter. It may have been knocking for some time but
it?s a convertible so unless the top is down and next to some sort of
concrete wall, you can?t really hear it.
That sounds more like a small exhaust manifold leak rather than a
knock. If that is what it is, then retarding the timing will make it
sound louder.
-jim
I checked the timing and am
running at 9 degrees BTDC. Elevation is roughly 6000ft but I drove it
to Las Vegas (~2000 foot elevation) a month ago and it knocked even
worse there. Anyone have any idea where to start? Fuel pressure
test? Back the timing off more?
TIA,
Derek
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