Infiniti QX4 - Rattling noice during acceleration

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utseay@aol.com - 11 Feb 2005 17:36 GMT

Does anyone know why, and a solution for a rattling sound when you hit
the gas? It sounds like a bunch of marbles being shaken in a tin can.

Is there anyway to fix it?

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John Varela - 11 Feb 2005 20:57 GMT

> Does anyone know why, and a solution for a rattling sound when you hit
> the gas? It sounds like a bunch of marbles being shaken in a tin can.
>
> Is there anyway to fix it?

That sounds like pinging. Are you using the correct octane fuel? Even if you
aren't, no modern car should ping, it should just lose power when lower than
specified octane fuel is used.

If you're still under warranty, take it to the dealer. If not, try using
higher octane fuel before going to a mechanic. Unless, of course, the Check
Engine light is on, in which case you should take it to a mechanic ASAP.

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John Varela
(Trade "OLD" lamps for "NEW" for email.)
I apologize for munging the address but the spam was too much.

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ppointer@nospamindspring.com - 13 Feb 2005 15:14 GMT

> Does anyone know why, and a solution for a rattling sound when you hit
> the gas? It sounds like a bunch of marbles being shaken in a tin can.

You didn't mention which year. When my old '99 was one week old I took
it back and found that it needed a u-joint replaced.

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utseay@aol.com - 13 Feb 2005 15:51 GMT

It's a 98 Qx4. I've been using 87, which is probably the problem. I
just filled up with 93 and put some gas treatment in and it seems to be
helping it.

Is this a problem that will go away if I continue to use the correct
octane?

> > Does anyone know why, and a solution for a rattling sound when you hit
> > the gas? It sounds like a bunch of marbles being shaken in a tin can.
> >
> You didn't mention which year. When my old '99 was one week old I took
> it back and found that it needed a u-joint replaced.

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JimV - 13 Feb 2005 16:12 GMT

It has a knock sensor so it shouldn't ping/knock on 87 (but you will
lose power and MPG).

> It's a 98 Qx4. I've been using 87, which is probably the problem. I
> just filled up with 93 and put some gas treatment in and it seems to be
[quoted text clipped - 16 lines]
>
>>it back and found that it needed a u-joint replaced.

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']['eRRaN--X - 01 Mar 2005 03:17 GMT

u have a infinity Qx 4? which i say cost 5grand more than the top pathfinder
which i have. patty cost me around 32K. the question is why would u try to
save dimes and nickles on gas when u have the money for a 36K QX4. Sorry
cause someone told me this, i was complaing about the gass miliege on my
pathfinder. and i got the speech. so im passing it on to you.

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