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Weird pinging noise in engine.

  • Thread starter Thread starter Waz900
  • Start date Start date May 18, 2005

Waz900

Member
Apr 22, 2005
41
4
18
Sewell, New Jersey
May 18, 2005
#1
  • May 18, 2005
  • #1
Hey guys, quick question.
I don't have many mods on my car. I have '92 5.0 LX AOD, with a blue superchip, flowmasters, CAI, and a shift kit. My problem is, whenever I give my car the gas, like, seriously floor it, I can hear a pinging noise coming from my engine. I can only really hear it when I floor it, you can't even really hear it when I am normally driving. Anybody have any ideas as to what it might be? Many people have told me that its probably a valve tap, but i'm not sure. I bought some of that Lucas treatment product that you mix with your oil. It works good, fixed my problem with my oil gauge, but it didn't do anything for the pinging. I thought it also might have been because of the 93 octane that I put in my car because of the superchip, but when I ran it with regular, I still got the same noise. I really hope that it isn't anything serious like a rod knock or something. I will be pissed. Thanks in advance for any input guys!
 

RYC CUKR

Founding Member
May 19, 2002
1,437
1
38
Orlando
May 18, 2005
#2
  • May 18, 2005
  • #2
get a timing light and check your ignition timing with the SPOUT out. It sounds like my might have some detonation or preignition. You might end up having to back your timing off a few degrees.
 

DJTR

Member
Mar 19, 2004
228
0
16
OTTAWA, Ontario, Canada
May 18, 2005
#3
  • May 18, 2005
  • #3
Definetly Bad timing, I had someone really mess mine up once when i sent it in for an oil change....... turn it back to around 10° and work from there
 

ECU5.0

Banned
Jan 10, 2004
1,803
1
0
raleigh, nc
May 18, 2005
#4
  • May 18, 2005
  • #4
the chip you have is probably messing with your timing. you probably need to run 93 or atleast 89 octane
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
May 19, 2005
#5
  • May 19, 2005
  • #5
the higher the octane, the less volatile the fuel and thus the less resistant to detonation it is. so stick with atleast 93 till you get this figured out.

two other big ideas come to mind. does this happen when it is cooler outside and the motor is not too warm?

and how are your FP and fuel filter doing? you simply might not be flowing enough volume of fuel at WOT to keep from running lean.

good luck.
 
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