rattling when i give it gas
03-04-2006, 01:54 AM
#1
rattling when i give it gas so i took my car on a trip and put 500 miles on it(wednesday andgot back thursday ), well today i took it for a drive t and i noticed a rattling noise every time i give it gas..it has done it before .. but not as loud as after the trip...i know its not piston slap ....what do you guys think it is??? maybe bad gas???? just changed my oil too..always use supreme gas...
03-04-2006, 11:00 AM
#3
it sounds like its coming from the engine...when i drove it this morning it really wasnt doing it any more. but yesterday it would only do it when i would give it gas ,but like i said it has done it before but bot as loud as yesterday.
03-05-2006, 01:45 PM
#6
i get the same thing it wont do it while its cool but soon as it gets really warm like in the summer i get it. it pisses me off but right now my car is stock except for exhaust so hopefully a cooler thermo and set the fans for it plus if i be a man and change the plugs i can get ridof it. guy at the shop heard it and swore it was just an exhaust pipe bangin the car so im goin to check and see if thats the prob but i dont but i feel your pain
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03-07-2006, 12:43 AM
#9
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I had the same thing in my 99 Z28 90K every time i gave it alittle gas it would knock like a rattling noice from the engine, i got a bottle of octane booster. that was the trick, and im finding i get better mpg with it too.
03-07-2006, 04:32 PM
#10
Originally Posted by SoCalZ28
I had the same thing in my 99 Z28 90K every time i gave it alittle gas it would knock like a rattling noice from the engine, i got a bottle of octane booster. that was the trick, and im finding i get better mpg with it too.
what i hear its not a knock..i know my car has piston slap but that evemtually goes away after it warms up. it almost sounds as if there was something loose that in there..
03-07-2006, 08:27 PM
#12
Originally Posted by JD_AMG
Only under WOT? Or just a little throttle? High up in the RPMs? Sound like beebees in the engine knocking around?
just a little throttle..how would i go about getting doing away with it?? is it bad?? but liuke i said before since last friday it has not done it as loud to where it noticeble
03-13-2006, 09:17 PM
#13
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I have a 2002 Z-28 6 speed,and at low rpm if I give it gas quick,my car makes a noise like that.I think its coming from under the hood.One thing ,if I shift down a gear and raise the rpm's it will not do it.
03-14-2006, 09:03 PM
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i may have the same problem i have an 01 ws6 a4 and when i down shift and get the rpms 2500 or higher and let off the gas its sound like what jd amg described beebees in the engine. I only put 93 octane in. I never let the sit for long periods of time I start it a few times a week (N.H bad weather). and its garaged. It just past 40,000 miles so im a little concerned. I know its not a piston slap, the sound is to rapid aswell. Sorry if i stoll your post. any info would help
thanks,
-jeff
thanks,
-jeff
03-14-2006, 09:42 PM
#16
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i think its bad gas.i have a 02 Z and i put gas not at my usual location and went cruising with the team. we stopped some where and the car did not want to start again. and then i remembered that at the gas station the pump was really going slow like cents at a time . im a manager at a gas station and i have the filters changed out once a month and when the pumps are really goin slow your gettin ***** loads of crap in your gas and thats what happen to me. that noise your hearing when you throttle it is bad gas pop a lucas injector cleaner in there it should help
03-18-2006, 12:09 PM
#18
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Originally Posted by Alyssasdad
I have a 2002 Z-28 6 speed,and at low rpm if I give it gas quick,my car makes a noise like that.I think its coming from under the hood.One thing ,if I shift down a gear and raise the rpm's it will not do it.
I've got the same issue lol
no idea what it is... the more gas I give it the faster it rattles.
04-20-2006, 04:09 PM
#19
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anybody know the fix? Mine only does it light throttle or 3/4 throttle anytime under 3,000 rpm. I've done all routine maintenance. No leaks, new plugs,wires, o2's, top end cleaner, fuel filter, clean maf, new air filter, 93 gas all the time. Mods are tb, catback, lid. 2001 trans am m6. 51,000 miles. It never does it WOT, only 1/2 to 3/4 throttle under 3,000 rpm. Think its the cats? No SES light and does it only when warm outside. Cold weather, it never does it or that I notice. Its a clanging/rattling noise under front car near engine/cat area.
04-21-2006, 12:06 AM
#20
My 01 a4 does it too. I came looking for a conversation on detonation. Mine warms up and then starts that crap. It is just off idle when accelerating or as you roll on the gas from coasting. I have 75,000 miles now. bought with 45K, so could need plugs, but I run only premium so it ticks me off to think I would need octane booster.