A few questions about possible probs
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This is a discussion on A few questions about possible probs within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; When i start driving in first and while in second it starts kinda like slightly rocking forwards and backwards, is ...

  1. #1
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    A few questions about possible probs

    When i start driving in first and while in second it starts kinda like slightly rocking forwards and backwards, is that normal in my scooby? Also, i was driving tonight and i heard a weird noise that sounded like it was coming from my exhaust so i pulled into a parking lot and parked and revved my engine to listen. It sounded like when i revved it was backfiring(i think thats what is called) when it came back down into the lower rpms. It was a putt putt sound. I have a 02 wrx and it is like 5 degrees here also btw. Any help would be great, thanks.
    EDIT: Oh ya, maybe this might be a little important too. I put 87 octane in my tank the fill before the last cause i was being cheap and i know it was a really stupid move.
    Last edited by mikcool1080; 12-06-2007 at 03:59 AM.

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  3. #2
    Registered User 05Wrex's Avatar
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    Yeah its the fuel. It is bogging down. To avoid detonation the car is more or less dumping fuel into the system and has retarded the ignition timing. The only solution is either drain the tank or make sure the car does not see boost until all the 87 is burnt off. Which means shifting sooner especially in lower gears.

  4. #3
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    Does anyone know if the rocking is normal? Or what could be the problem possibly?

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