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  • 3.4 jerking under acceleration

    hey, well i've been having this problem for a few weeks now. the only thing is is that it seems to come and go and at varying degrees. under moderate to hard accelaration my 3.4 camaro with a 5 speed, seems to jerk up to speed. it doesn't really start untill you hit about 3500rmp. and while accelerating just seems to jerk, enough it move you around in your seat. what could this be? it has new plugs and wires. could the coil packs be bad at 74k?
    1995 Camaro 3400 SFI V6 M5<br />Custom CAI|FloPro Exhaust|Mobil 1 sythentic|Yokohama T4\'s| 5% Rear Window tint, 35% front| Hockey stick side stripes|Indiglo Gauges|Custom Painted Interior<p><a href=\"http://www.cardomain.com/id/3400camaro\" target=\"_blank\">www.cardomain.com/id/3400camaro</a>

  • #2
    <blockquote>quote:</font><hr>Originally posted by 3400Camaro:
    hey, well i've been having this problem for a few weeks now. the only thing is is that it seems to come and go and at varying degrees. under moderate to hard accelaration my 3.4 camaro with a 5 speed, seems to jerk up to speed. it doesn't really start untill you hit about 3500rmp. and while accelerating just seems to jerk, enough it move you around in your seat. what could this be? it has new plugs and wires. could the coil packs be bad at 74k?<hr></blockquote>

    this same thing happens with my 3.8-- my wires keep burning up on the exhaust manifold, this happened twice already until i did the install myself... i dunno if that helps, but check your wires and see if they were installed and routed properly... if not, test ur coil packs
    <b>Red 1996 Firebird 5-speed:</b><br />-Zexel-Torsen LSD, SLP CAI, B&B TriFlow Exhaust, 1LE Aluminum Driveshaft, 1LE LCA\'s, 160 Degree Thermostat, SLP Manual Fan Switch, B&M Ripper Shifter, 245/50/16 Kuhmo Ecsta Supras and lots of Zaino<p><b>White 1990 5.0L Camaro IROC-Z:</b><br />-Flowmaster Muffler, NGK\'s/Taylors<br /><i>-SOLD</i>

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    • #3
      my 3.8 was doin it...new plugs, wires, and coils. runs perfectly now. that's my recommendation. ;)

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      • #4
        i had the same problem with my 94 3.4L, pulled the plugs and wires and one wire fell apart in my hands and all of my plugs were excessivly gaped, replaced them and the car runs fine.

        Fullagar
        93 Z28 M6 M29 K&N FIPK, Accel 300+ Ignition, Flowmaster 80 muffler, 12 bolt rear-end
        94 3.4L A4 K&N FIPK and Pacesetter cat-back

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        • #5
          this is happening to me right now. it feels like it bogs out right? around 50mph then it stops once i go a lil faster.

          if you want, read my post to see what else people say? im taking it in today to have it looked at.
          94 3.4L A4 white t-tops<br />moroso cai<br />3\"hi-flow pacestter exhaust<br />b&m shift kit<br />catco cat<br />01 T/A rear w/ 3.73\'s and posi<br />1 pc aluminum ds<br />blacked out signals

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          • #6
            yeah, sorta, i've also noticed that under hard acceleration that if i feather the throttle, you know, sorta lightly move the peddle back and forth, the car will surge forward but then slow down again, i'll do it again, and it will surge forward. i know this can't be normal. let me know what you find out. i'm thinking possibly maybe a dirty fuel filter?
            1995 Camaro 3400 SFI V6 M5<br />Custom CAI|FloPro Exhaust|Mobil 1 sythentic|Yokohama T4\'s| 5% Rear Window tint, 35% front| Hockey stick side stripes|Indiglo Gauges|Custom Painted Interior<p><a href=\"http://www.cardomain.com/id/3400camaro\" target=\"_blank\">www.cardomain.com/id/3400camaro</a>

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            • #7
              well i got bored tonight and i pulled the plugs in my camaro. they were all good except for cylinder #2. that plug was all nastied up with black deposit and soot. these plugs are like maybe a month old, if that. whats causing this?
              1995 Camaro 3400 SFI V6 M5<br />Custom CAI|FloPro Exhaust|Mobil 1 sythentic|Yokohama T4\'s| 5% Rear Window tint, 35% front| Hockey stick side stripes|Indiglo Gauges|Custom Painted Interior<p><a href=\"http://www.cardomain.com/id/3400camaro\" target=\"_blank\">www.cardomain.com/id/3400camaro</a>

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