Another pinging question
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Another pinging question - RESOLVED THANKS!
Whipping down the freeway today at 80 mph I wanted to speed ahead to change lanes so I punched. Of course I took off like a rocket but there was some pinging.
This is an 04 automatic with 2.73 gear so the motor was probably working hard. (80 mph is about 1900 rpm). California gas.
Does anyone think this is a problem???? If so, solutions????
I don't like it - but I think it's okay.
This is an 04 automatic with 2.73 gear so the motor was probably working hard. (80 mph is about 1900 rpm). California gas.
Does anyone think this is a problem???? If so, solutions????
I don't like it - but I think it's okay.
Last edited by DuffyN; Feb 21, 2006 at 12:20 AM.
Le Mans Master
Joined: Aug 2003
Posts: 9,298
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From: American Canyon Lethal Injection
Originally Posted by DuffyN
Whipping down the freeway today at 80 mph I wanted to speed ahead to change lanes so I punched. Of course I took off like a rocket but there was some pinging.
This is an 04 automatic with 2.73 gear so the motor was probably working hard. (80 mph is about 1900 rpm). California gas.
Does anyone think this is a problem???? If so, solutions????
I don't like it - but I think it's okay.
This is an 04 automatic with 2.73 gear so the motor was probably working hard. (80 mph is about 1900 rpm). California gas.
Does anyone think this is a problem???? If so, solutions????
I don't like it - but I think it's okay.
Thread Starter
Instructor
Joined: Dec 2004
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Interesting. I forgot to mention. Chevron 91 octane is what I am running. I like the service guy at my local Chevy dealer. He's had a couple of vette's, show rods, etc. I'll ask him. I think it's okay.
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Originally Posted by DuffyN
Interesting. I forgot to mention. Chevron 91 octane is what I am running. I like the service guy at my local Chevy dealer. He's had a couple of vette's, show rods, etc. I'll ask him. I think it's okay.
Rsty
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Thread Starter
Instructor
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Hmm. Interesting question on the airbox. It is the factory airbox but I put a K & N filter in it. Their instructions sucked. I'm sorry I read them. They said to remove the air box and put a gasket in it. After screwing around I discovered the instructions don't work for pulling out my box so put everything back together and I did manage to put the gasket in with the box in place - only to discover that it then made the whole thing too thick to clamp down on the K & N!! Finally.. duh... I just put the K & N in. It looked to clamp down on it, so no leaks, but the K & N is much thinner then the stock.
I think I will just get a stock filter and try that little experiment again! I've "hit it" before and not noticed the pinging. I'm pretty sensitive to that. And with the other guys not getting it....
Thanks for all the help! This is an awesome forum!
I think I will just get a stock filter and try that little experiment again! I've "hit it" before and not noticed the pinging. I'm pretty sensitive to that. And with the other guys not getting it....
Thanks for all the help! This is an awesome forum!
Melting Slicks
Joined: Sep 2004
Posts: 3,178
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From: N. County/San Diego
If you are still running the stock platinum plugs, it may be your problem.
The pucks on the stock plugs retain a lot of heat which could be the source of your pinging. You can check with your budy at G.M., but I`d try running one of the popular iridium plugs and see if that cures your problem.
Rick
The pucks on the stock plugs retain a lot of heat which could be the source of your pinging. You can check with your budy at G.M., but I`d try running one of the popular iridium plugs and see if that cures your problem.
Rick
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Yeeks. This gets complicated. While reading another post I read about a "computer relearn" procedure. Maybe this is needed for the new air filter that is thinner???? (the "mate up" portion is same thickness as the old filter but the overall thickness of the "filter part" is much thinner).
I think I'll try the computer relearn 1st - that's the cheapest. Is it really necessary for the minium 11 minute wait three times?
Also just remembered, better get a stock filter for those trips to the dealer. heh heh
I think I'll try the computer relearn 1st - that's the cheapest. Is it really necessary for the minium 11 minute wait three times?
Also just remembered, better get a stock filter for those trips to the dealer. heh heh
Thread Starter
Instructor
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Pinging Resolved
Thanks for all the input. Based on the discussion I thought, hell, maybe the computer will figure it out. Another thing is, I hadn't done any high speed driving since I put the new K & N in - except for the one incident I had noticed the pinging.
So, I just went for another drive and it's running great! No pinging. What a f'n rocket!!
I guess the computer must have readjusted air intake or something.
Man what a machine. I'm a vette man forever!
Thanks for all,
Duf
So, I just went for another drive and it's running great! No pinging. What a f'n rocket!!
I guess the computer must have readjusted air intake or something.
Man what a machine. I'm a vette man forever!
Thanks for all,
Duf
Team Owner
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From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Year of the car and mileage....????
demand and load on a 2:73 geared motor could cause momentary ping.
that is a cruising gear used for better mileage, not for get up and go.
plugs, contaminated gas, timing, engine coolant temp, oil temp, demand and load all play a part.
The reason I asked about year and mileage: on older cars with significant mileage, carbon build up can cause increased compression and pre-ignition, especially under load.
demand and load on a 2:73 geared motor could cause momentary ping.
that is a cruising gear used for better mileage, not for get up and go.
plugs, contaminated gas, timing, engine coolant temp, oil temp, demand and load all play a part.
The reason I asked about year and mileage: on older cars with significant mileage, carbon build up can cause increased compression and pre-ignition, especially under load.
Melting Slicks
Joined: Dec 2005
Posts: 2,017
Likes: 169
From: SE VA VA
Originally Posted by DuffyN
Whipping down the freeway today at 80 mph I wanted to speed ahead to change lanes so I punched. Of course I took off like a rocket but there was some pinging.
This is an 04 automatic with 2.73 gear so the motor was probably working hard. (80 mph is about 1900 rpm). California gas.
Does anyone think this is a problem???? If so, solutions????
I don't like it - but I think it's okay.
This is an 04 automatic with 2.73 gear so the motor was probably working hard. (80 mph is about 1900 rpm). California gas.
Does anyone think this is a problem???? If so, solutions????
I don't like it - but I think it's okay.
My 01 MN6 pings near the top of the torque curve, but it can be in any gear. From a dead stop/in 1st, it is usually accompanied by a cloud of smoke.
I've asked the dealer C-x specialist about it; if I recall correctly, he said it (is something to do with) the EGR system, and although he could tweak the computer to eliminate the ping/smoke at WOT or near WOT, there would be a noticable performance hit.
AJ
Safety Car
Joined: Dec 2001
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From: Indianapolis Indiana
Cruise-In III Veteran
Cruise-In IV Veteran
If you drive a lot of city miles and have not used the top engine cleaner (which you cannot buy in Cali) you could have knock for sure. I had audible knock with 93octane at one point before cleaning mine.
Safety Car
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From: Indianapolis Indiana
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Cruise-In IV Veteran
Originally Posted by Evil-Twin
In California you can use "Seafoam " top engine cleaner.. it is a viable second to GM's product. IT works..