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ROUGH ACCELERATION


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jessiejames
New User

Feb 12, 2012, 4:47 PM

Post #1 of 7 (1053 views)
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ROUGH ACCELERATION Sign In

my 93 GMC dully has a 350 gasoline engine 5.7L, new plugs, fuel filter, carb fuel filter, wires and the cap and rotor seem fine,, it starts fine and idile's good. When you try to accelerate it will not move up in rpm,Its just runs really rough,,,and will not gain power. Sometimes the problem is there right away,,sometimes you can drive for 45 mins with no problem. Gasoline antifreeze has also been tried. The EGR valve is fine, the choke is not sticking. As I mentioned,it starts and idile's very smooth with no problems. This problem just started to occur and the truck had no issues up until a trip home yesterday when it decided to start acting up.

ThankYou for any help.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 12, 2012, 5:12 PM

Post #2 of 7 (1021 views)
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Re: ROUGH ACCELERATION [In reply to] Sign In

Is the check engine light coming on at all?




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jessiejames
New User

Feb 12, 2012, 5:17 PM

Post #3 of 7 (1015 views)
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Re: ROUGH ACCELERATION [In reply to] Sign In

Its always on.It has been on for 2 years since I changed engine


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 12, 2012, 5:20 PM

Post #4 of 7 (1012 views)
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Re: ROUGH ACCELERATION [In reply to] Sign In

I can see I'm wasting my time here. If that's the way you maintain your car, there's nothing we can do for you.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



jessiejames
New User

Feb 12, 2012, 5:27 PM

Post #5 of 7 (1008 views)
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Re: ROUGH ACCELERATION [In reply to] Sign In

ok thanks for nothing


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 12, 2012, 5:31 PM

Post #6 of 7 (1001 views)
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Re: ROUGH ACCELERATION [In reply to] Sign In

Sure, anytime................. I hope you take care of your family better than your car.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
Veteran / Moderator
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Feb 12, 2012, 6:33 PM

Post #7 of 7 (982 views)
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Re: ROUGH ACCELERATION [In reply to] Sign In

That's strange. It being a 93 it should have TBI.





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