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Throttle tap shake

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Old 12-24-2009, 08:14 PM
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Throttle tap shake

Since Ive had my car it has always hesitated if i let off completely then press the gas sharply to any degree of throttle. in other words. 0 to 1/4 0 to 1/2 0 to WOT. when i say hesitate i actually mean shakes violently and bogs for 1-3 seconds then immediately picks up and runs like a champ. i can start at 1/8 throttle and slam it to floor with no problem. the car has a new clutch flywheel CV's. i dont slam my throttle on a normal basis but is this something i should be working on getting fixed or is my tranny on the out.
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Old 12-24-2009, 09:30 PM
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I'm suscribed to like 4 other threads with the same problem, no solution yet... You're probably 5 speed too right?
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Old 12-25-2009, 08:42 AM
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yeah 5 speed non vlsd. im wondering if it could be injectors or motormounts given the severity of the shaking. but motor mounts wouldnt describe the bog. my dad said it could be "loading up" but im pretty sure you cant really"flood" our fuel injected cars
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Old 12-25-2009, 08:59 AM
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If you tried a search you'd see a multitude of suggestions with no actual solutions, I've done pretty much everything except work with the iggy coils, when I get back home I will take em apart and clean em to see if that made a difference. I'm doubtful, cause in one of the threads the guy just brought set of iggy coils and he still has the hesitating/stuttering issues...

Who knows what it is... At this point in time our cars with mine at the youngest reaching 11 years old, I will just give it up to old age. As long as I still outrun silly 4 bangers from my time period I'm satisfied.
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Old 12-25-2009, 10:51 AM
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It honestly feels like a slipping chain on my old atv but the diference is my car holds together under pressure. I'm still leaning towards the tranny or mounts because of the fact that it doesn't do it in neutral
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Old 12-25-2009, 10:54 AM
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u know my car had a similar problem i didnt pay it much mind but when i pulled the motor i found 3 destroyed motor mounts, the 2 lower ones on the crossmember was literally just floating in mid air.
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Old 12-25-2009, 12:07 PM
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Same here. Mounts were destroyed.
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Old 12-25-2009, 01:30 PM
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Mine look pefect, except the rear one, looks a little old, it's probably goin to fail in a year or two.
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Old 12-25-2009, 01:36 PM
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Check -

TPS
MAF
MAP Sensor
Motor Mounts
Ignition coils
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Old 12-25-2009, 04:24 PM
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any way to check the motor mounts without pulling the motor? i was thinking about it today at christmas that my uncles old dune buggy would shake and jerk horribley on the throttle because of a missing tranny crossmember. you had to cruise at 1/4 throttle or it would rock and jerk and accualy slow down with more throttle.
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Old 12-25-2009, 04:37 PM
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Originally Posted by skweaky
any way to check the motor mounts without pulling the motor? i was thinking about it today at christmas that my uncles old dune buggy would shake and jerk horribley on the throttle because of a missing tranny crossmember. you had to cruise at 1/4 throttle or it would rock and jerk and accualy slow down with more throttle.
Visually for any cracks, and since you're manual, with the hand brake up, have a buddy watch the engine movement when you try to engage the car in reverse (or 1st). I don't know what's the allowed movement but mine moves about an inch.

Also gear shifter movement when driving... if the shifter moves around a bit when your accelerating and decelerating then you got a bad mount...

Last edited by aackshun; 12-25-2009 at 04:40 PM.
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Old 12-25-2009, 05:14 PM
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the shifter "shifts" front to back when switching from accel to decel but idk how much is normal. ill check the engine movement in the daylight tomarow.

Last edited by skweaky; 12-25-2009 at 05:17 PM.
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