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Topic Review (Newest First)
04-06-2005 04:35 PM
Siggy_Freud Small exhaust leaks (at the header mostly) can be known to make chirping noises.
04-06-2005 03:51 PM
280zxWith305 im not meaning to be a thread stealer.. but what about a chirping noise at wot... its like chirp. chirp chirpchirpchirp.... chirp lol.. its annoying and it just started about 10,000 miles ago.. its a 99 silverado with 86,000 miles
04-06-2005 03:03 PM
camaroman7d What ever you do don't keep detonating it. That is VERY harmful to the engine. Figure out what's going on. Get your timing straight, that's very important. You have a heavy vehicle so that engine will see a lot of stress.

If the timing doesn't cure it try running some racing gas and see if that cures it, if so, you may need to lower your compression ratio.

Do you know what the compression is? Does it have aluminum heads? What rear gears? Stall? etc... All these things can effect your pinging.

04-06-2005 03:01 PM
bondo Cut the timing Back to 6* or 8*,+ Try It.........
04-06-2005 12:29 PM
Siggy_Freud Timing tape or a dial timing gun.
04-06-2005 12:13 PM
crush56 The engine only has 50 miles on it. Its in a 56 Ford F100 truck.

I'm not sure what the total timing or advance is. How do I find this out?
04-06-2005 11:25 AM
RJL what is your total timing and what is your vac advance set at
04-06-2005 11:18 AM
Siggy_Freud Sounds like detonation. Did it always do this or did you change anything? True getting premium from a different gas station. Might just of had a bad batch of gas.

What type of car/engine is this?
04-06-2005 10:53 AM
Rattling noise at load

Need help.... Ive got a new 351w from Ford Racing. It makes a rattling or ping noise at around 3000 rpm or when I jump on the gas. I'm running 91 octane with timing set at 10 deg. Under 3000 rpm it runs great so I'm confused. Could it be detonation? or Fuel mixture?

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