Have KNOCK...The Real Kind
Thread Starter
Safety Car
Joined: Dec 2001
Posts: 4,295
Likes: 2
From: Indianapolis Indiana
Cruise-In III Veteran
Cruise-In IV Veteran
Have KNOCK...The Real Kind
Over the past year i've been noticing that my car pings all too easily under load. I haven't scanned it for KR, but the pinging is clearly noticable a the strip. Does anyone have an idea what my issue is/experienced this same problem?
- It only happens on the top end (over 5300ish RPM).
- I only run Sunoco 94 or BP 93 octane fuels. It's worse if i use others.
- It doesn't only occur in hot weather.
Any ideas other than just saying "take it to the dealer"?
- It only happens on the top end (over 5300ish RPM).
- I only run Sunoco 94 or BP 93 octane fuels. It's worse if i use others.
- It doesn't only occur in hot weather.
Any ideas other than just saying "take it to the dealer"?
Drifting
Joined: Sep 2002
Posts: 1,947
Likes: 0
From: Howell MI.
Re: Have KNOCK...The Real Kind (BQuicksilver)
It could be that there is a lot of sludge on tops of the pistons.
De-carbonization might fix it
It sure will help ?
Many miles without a catch can = sludge
E-MAIL SENT
[Modified by blktie8, 2:49 PM 5/24/2004]
De-carbonization might fix it
It sure will help ?
Many miles without a catch can = sludge
E-MAIL SENT
[Modified by blktie8, 2:49 PM 5/24/2004]
Racer
Joined: Mar 2003
Posts: 348
Likes: 44
From: Kansas
Re: Have KNOCK...The Real Kind (BQuicksilver)
My dad's '99 does the same thing as your car. It scared the poopie out of me the first time we had it on the dyno and I heard it. The only thing I can think to do to help combat it is to put some Water Wetter in the radiator and bypass the throttle body coolant. Other than that it's going to have to be tuned out.
-Chris
-Chris
Racer
Joined: Oct 2003
Posts: 333
Likes: 0
From: COWFORD FL
Re: Have KNOCK...The Real Kind (BQuicksilver)
Over the past year i've been noticing that my car pings all too easily under load. I haven't scanned it for KR, but the pinging is clearly noticable a the strip. Does anyone have an idea what my issue is/experienced this same problem?
- It only happens on the top end (over 5300ish RPM).
- I only run Sunoco 94 or BP 93 octane fuels. It's worse if i use others.
- It doesn't only occur in hot weather.
Any ideas other than just saying "take it to the dealer"?
- It only happens on the top end (over 5300ish RPM).
- I only run Sunoco 94 or BP 93 octane fuels. It's worse if i use others.
- It doesn't only occur in hot weather.
Any ideas other than just saying "take it to the dealer"?
running sunoco 94 in cool weather and you still can hear knock is pretty serious, you need to take it to a tuner or dealer, have the heads pulled and see if there is any damage.
scanning and tuning should be done after the engine is assembled and/or repaired.
