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Old May 11th 15, 10:04 PM posted to rec.autos.makers.saturn
Wordsworth
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Posts: 6
Default Need help with a 2002 Saturn Sc1

On Mon, 11 May 2015 13:18:00 +0000, IllestSaturn
> wrote:

>Have a 2002 Saturn SC1, got it used for $1800, had a few
>problems with it, it shakes very badly, especially with
>the A/C turned off,
>but that isn't what concerned me so much as the stalling
>and the most recent issue, it started jerking. Last night I was
>headed home from work, I was riding about 35-40 mph and had my foot on the
>accelerator, just barely putting pressure on it, just enough
>to slowly accelerate. That's when it jerks, at max acceleration
>there is no problem, but when you are just barely pressing
>the accelerator pedal,
>it jerks. Not like you are driving over a washboard,
>just a very light, jerking,
>I'm not sure how to describe it, it feels like it's hesitating,
>have recently changed:
>Throttle Position Sensor
>IAC Valve
>Fuel Filter
>Spark Plugs and Wires last July or August I can't remember which
>Also a new battery and starter
>Another issue is the other day I stopped at an intersection,
>and when it was
>clear I pressed the accelerator, and the car didn't move, it just
>revved the engine,
>I put it in neutral, and back in drive (it's an automatic)
>pressed the gas pedal, it revved up to 2000 rpms then took off,
>but not a smooth take off, a big jerk and then it took off,
>checked transmission fluid and it was fine, any suggestions?
>Please help, thanks in advance! ?



A couple things to check come to mind.

It has been a while since you replaces the plug wires, but double
check that you have the #1 and #4 wires plugged into the correct coil
towers. On any other car it wouldn't matter, since they fire from the
same coil, but the S-Series uses the #1 wire as a "cam sensor"
reference. Switching #1 & #4 will cause "jerking" as you describe it,
usually only after the engine warms up, and when accelerating from a
stop - but it's definitely worth a look.

The revving issue may be related to another known quirk of the
S-Series - specifically the automatic versions. Google "Saturn
reverse slam fix" for more details. And change the transmission
filter - if you haven't tried that yet.

Good luck.
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