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1999 Automatic Saturn SL1 Hesistation

Tiny
BLZNHOT18
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I wish you were local, you have been so nice and patient with me. So I filled it all the way and it feels smooth, the hesitation is still there but it is a lot smoother.
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Monday, October 17th, 2011 AT 6:54 PM
Tiny
SATURNTECH9
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Iam in southern california so is it hesitation or a bucking?Also does it get worse with the ac on if the ac works?
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Monday, October 17th, 2011 AT 7:21 PM
Tiny
BLZNHOT18
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Hesitation not bucking and I don't think so, I hardly use it but it does work kind of. I mean the heat and the cold work but isn't very strong. Do you think I should use the Sea Foam again after this tank or no?
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Monday, October 17th, 2011 AT 8:27 PM
Tiny
BLZNHOT18
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Like a sticky lag, it happens some times then some times it doesn't. Some times when it idles especially after refueling it shutters. Now it just kinda lags sticky some times not every time and not in the same place. It gets better after an STP treatment but still remains and it gets worse after refueling.
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Monday, October 17th, 2011 AT 8:48 PM
Tiny
SATURNTECH9
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I wouldnt run another can after this one lets run the tank down and see what happens.I hope your trying a different gas station?Its strange after a fill up your having these problems possible the fuel pump partially sticking from the cold fuel hitting the hot pump?Usually the pumps just lock up when thats the case. How low is the tank when you usually fill up?
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Monday, October 17th, 2011 AT 10:06 PM
Tiny
BLZNHOT18
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Yea I went to Shell and then BP and I usually fill it at half tank or little below that. It gets better the day after a fill up but still has the hesitation but not as noticeable. It kind of lags some times switching gears but it smoothes out.
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Monday, October 17th, 2011 AT 10:14 PM
Tiny
SATURNTECH9
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I wouldnt mind knowing the fuel pressure when its acting up if it doesnt clear up after this tank. Before refilling this tank this next time run the tank down to a 1/8 of a tank.
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Monday, October 17th, 2011 AT 10:19 PM
Tiny
BLZNHOT18
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Ok, but, I don't have the money to replace a fuel pump if needed.
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Monday, October 17th, 2011 AT 10:21 PM
Tiny
SATURNTECH9
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Most of the time with a fuel pressure issue on those cars its the fuel pressure regulator in the filter not the fuel pump itself.I have replaced very few fuel pumps on that new of a saturn S model saturn.
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Monday, October 17th, 2011 AT 10:25 PM
Tiny
BLZNHOT18
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So, you're saying it's the fuel filter. If I don't replace it, will that kill the car?
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Monday, October 17th, 2011 AT 10:29 PM
Tiny
SATURNTECH9
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I cant say its the fuel filter I said if it was a fuel pressure issue it would most likely be the fuel filter. So lets see if this tank clears things up if it doesnt we will have to go from there.
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Monday, October 17th, 2011 AT 10:43 PM
Tiny
BLZNHOT18
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Ok I'll keep you posted.
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Tuesday, October 18th, 2011 AT 12:06 AM
Tiny
BLZNHOT18
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Ok so the car idles rougher now and I don't know if this is new but when it does, the RPMs go down. I'm losing my mind about my car, I've got my dad telling me it's normal but I don't know what the hell to do.
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Tuesday, October 18th, 2011 AT 10:45 PM
Tiny
SATURNTECH9
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So the rpms drop on the gauge at idle?If so thats not normal it shouldnt do that. Or does it feel rough like a lot of vibration?
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Tuesday, October 18th, 2011 AT 10:53 PM
Tiny
BLZNHOT18
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Only when that shudder thing happens.
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Tuesday, October 18th, 2011 AT 10:56 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,872 POSTS
Saturntech. I see the two of you have been discussing this for some time. Has the fuel pressure ever been checked? I see that you mentioned it a few times.
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Tuesday, October 18th, 2011 AT 11:07 PM
Tiny
BLZNHOT18
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Going to Advanced now to get the pressure measured. And a diagnostic
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Tuesday, October 18th, 2011 AT 11:22 PM
Tiny
SATURNTECH9
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Alright make sure you check the fuel pressure when its acting up. Also if there is any codes keep me posted on the exact numbers not the code descriptions.
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Tuesday, October 18th, 2011 AT 11:28 PM
Tiny
BLZNHOT18
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Ok, well I'm not sure when its going to shutter, so.I'm not sure when it should be measured. Today it acted up but now it seems fine.
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Tuesday, October 18th, 2011 AT 11:32 PM
Tiny
SATURNTECH9
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Just get it tested for the heck of it and have them scan the car for codes for now.
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Tuesday, October 18th, 2011 AT 11:36 PM

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