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#1
07-19-2006, 09:26 PM
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94 GP SE Hesitating and Stuttering
Hey all, First time poster.
My 94 GP with 3.1 all stock, about a week ago started jumping rpms' and hesitating and stuttering, and at some points even stalled out. It usually only does it after about 10 min of driving, and i went to autozone today and codes came up clear. I really need help, this is my daily driver, and i depend on it to get to work. Someone Help! Thanks. 
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#2
07-20-2006, 12:01 AM
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Re: 94 GP SE Hesitating and Stuttering
have you checked your spark plugs or maybe your fuel filter?
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#3
07-20-2006, 12:05 AM
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Re: 94 GP SE Hesitating and Stuttering
No, I haven't. I haven't really looked into it all that much. I had a mechanic drive it, and he happens to be my uncle, but of course it drove fine when he drove it, but i'll change the plugs and fuel filter tomorrow, and keep you posted.
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#4
07-20-2006, 12:10 AM
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Re: 94 GP SE Hesitating and Stuttering
i would probably start wih the fuel filter, especially if you've never changed it. Probably about $20.00 and 15 minutes of work
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#5
07-20-2006, 09:01 AM
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Re: 94 GP SE Hesitating and Stuttering
Are you sure that A-Z's scanner is capable of pulling your codes? Many 94-95 GM cars have a hybrid plug that doesn't have the terminals in the A-B location on the ALDL so generic scan tools can't pull them. Since your car is OBD-I, you won't get random mis-fire codes if the plugs and wires are shot, so do as jjubeck suggested and tune her up first, before spending money on expensive parts you don't need. Stay away from Bosch +2 and +4 plugs, they are JUNK. Stay with AC-Delco or Autolites (on both the plugs and wires) if you can't find Delco's.
__________________
 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#6
07-20-2006, 05:45 PM
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Re: 94 GP SE Hesitating and Stuttering
K, changed the plugs and filter, still no change. Any other suggestions?
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#7
07-20-2006, 11:21 PM
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Re: 94 GP SE Hesitating and Stuttering
If it was the MAF Sensor, it would've come up in the OBD right?
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#8
07-21-2006, 01:16 AM
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Re: 94 GP SE Hesitating and Stuttering
i could be way off but does it do it right after it kicks into overdrive? like it jumps back and forth? my parents have a grand prix where sometimes after it kicks into overdrive it jumps when it trys to change gears like it wants to jump forward then comes back, for them it only happens if you try to give it light gas to speed up when it is in overdrive, although i dont have a solution to this because they have had it to the trans shop and after they found out how to make it do it they couldnt figure out why it did it, i could be way off but just a suggestion and im probably wrong
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#9
07-21-2006, 09:11 AM
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Re: 94 GP SE Hesitating and Stuttering
Quote:
__________________
97 Grand Prix GT 360,000 miles as of 02-01-09 391 000 miles as of 11-17-11 400,000 miles as of 3-15-13 01 Duramax/Allison 07 G6 convertible
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#10
07-21-2006, 11:55 AM
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Re: 94 GP SE Hesitating and Stuttering
I agree with Wlkjr, you need to change the plug wires too.
__________________
Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#11
07-21-2006, 03:35 PM
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Re: 94 GP SE Hesitating and Stuttering
Ok. I'll change the plug wires, and i'll let you guys know what happens. Thank you very much for the suggestions.
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#12
07-21-2006, 04:48 PM
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Re: 94 GP SE Hesitating and Stuttering
Is there a chance you could have gotten some bad gas? Not likely these days but possible. Might even trying a tank of Premium if the wires don't help.
__________________
97 Grand Prix GT 360,000 miles as of 02-01-09 391 000 miles as of 11-17-11 400,000 miles as of 3-15-13 01 Duramax/Allison 07 G6 convertible
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#13
07-22-2006, 03:30 PM
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Re: 94 GP SE Hesitating and Stuttering
Quote:
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#14
07-28-2006, 06:00 PM
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Re: 94 GP SE Hesitating and Stuttering
OK. Finally figured out what it is. 1 fuel injector or more went out, and since my certain engine is SFI,(Sequential Fuel Injection), when one goes out, it shuts the rest down, much like christmas tree lights. So it's gonna be about a 2-300 fix, if my uncle does it.
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#15
07-31-2006, 02:32 PM
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Re: 94 GP SE Hesitating and Stuttering
You might try a good injector cleaner or have a shop do an injector cleaning. It don't take much to make an injector seem bad .When I priced injectors for my 90 gpse 3.1 it wasgonna be around 600 just for injectors !
Might wanna check fuel pressure too cant hurt. Good luck You probably already have it fixed. Sorrry for late reply Peace
__________________
Gravityamp 1990 Pontiac GPse 3.1 L F.I. 185k
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