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juddery acceleration :S

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Offline skandy32

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juddery acceleration :S
« on: December 25, 2006, 03:56:06 AM »
I drove my sidekick/vitara all summer offroad, and as a DD, never really noticed anything wrong, i suppose i was used to it. But i've just returned from 4 months at college, gave it a wazz yesterday, and cant help but notice how unsmooth accelerating is...

changing gear takes some interesting gas pedal work to keep smooth, and if i accelerate too harshly it judders as if it's trying to catch up with itself :S

On idle too, generally the whole car shakes more than i thikn it should ( i had all the engine mounts changed back in the summer trying to solve this, but barely improved it, and as i said, after not driving it for so long, i really notice it now) Dont know whether this is connected?

Its an 8v 1.6, calmini rear part of the exhaust, no cat (maybe this is the reason :S), only 1.5" spacers lifting it. I dont have a clue what it could be...

Any ideas guys?

Cheers!
And Merry Christmas!!

Andy
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UK Vitara - 2" spring/shock spacers, 3" calmini body lift, 32x11.5x15" BFG MTs, rear half calmini exhaust/no cat, full Alpine ICE

http://www.andycolver.co.uk
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Offline daddyizzle

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Re: juddery acceleration :S
« Reply #1 on: December 25, 2006, 06:16:51 AM »
Sounds like moisture in the gas or old gas to me.

-Adam
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If all criminals were behind bars, there would be no one left to patrol the streets.

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Offline skandy32

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Re: juddery acceleration :S
« Reply #2 on: December 25, 2006, 07:51:16 AM »
thats a good point actually... ill need to finish the tank and refill it and then see if thats the solution

thanks, but anyone got other ideas tho?
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UK Vitara - 2" spring/shock spacers, 3" calmini body lift, 32x11.5x15" BFG MTs, rear half calmini exhaust/no cat, full Alpine ICE

http://www.andycolver.co.uk
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95XL7

Re: juddery acceleration :S
« Reply #3 on: December 25, 2006, 09:20:29 AM »
Check distributor cap for moisture/cracks too.
Check air filter box for obstructions mud/mouse/chipmunks nests,etc.
All sorts of things can happen when letting a vehicle sit wthout starting it.
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Offline Amilla

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Re: juddery acceleration :S
« Reply #4 on: December 25, 2006, 09:57:01 AM »
One word....SEAFOAM!



Amilla
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88 Samurai, Sprung Up, Geared Down, Locked,With Yotas.
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Offline skandy32

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Re: juddery acceleration :S
« Reply #5 on: December 28, 2006, 03:08:34 PM »
i've gone through a tank now and its a little better but not all gone...

I've also found out its worse when the engine is warmer :S does this mean anything?

No moisture / cracks in the dist cap, thanks for the idea tho :)
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UK Vitara - 2" spring/shock spacers, 3" calmini body lift, 32x11.5x15" BFG MTs, rear half calmini exhaust/no cat, full Alpine ICE

http://www.andycolver.co.uk
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Offline daddyizzle

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Re: juddery acceleration :S
« Reply #6 on: December 28, 2006, 04:27:44 PM »
Are your wires good? Sometimes a bad coil wire itself will bog you down. If it gets really bad, you won't be able to start at all. I would also put some fuel system cleaner and gasline drier in case there is still a hint of moisture in it. The only other thing I could think of is your gas station is selling the winter blend fuel.
-Adam
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If all criminals were behind bars, there would be no one left to patrol the streets.

86 Samurai Tin-Top stock with a Harley 44 sidedraft carb
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