Car Bucks

shadow98gt · June 15th, 2007, 11:26 AM

I have a 98 GT and when i just give my car a lttle gas its bucks pretty bad, it doesnt do it all the time just when it feels like it... i have replaced coil packs, wires, and plugs so i dony know what else i can do... i also cleaned out my plenum and no help... any suggestions?

MustangMatt96GT · June 15th, 2007, 12:09 PM

Do you have a CEL?

product1620 · June 15th, 2007, 12:35 PM

Are you sure you gapped the plugs correctly?

shadow98gt · June 15th, 2007, 12:50 PM

i dont know what a CEL is and yea i just bought plugs that fit my car... but it has been doing this for awhile and i dunno!? it usually does it after i am rough on it, but then sometimes it just does it to piss me off...

product1620 · June 15th, 2007, 01:27 PM

Just cause they fit, doesn't mean they are gapped correctly take one of them out and check the gap. Does it buck under a low rpm load?

shadow98gt · June 15th, 2007, 06:26 PM

yea but its more about gas... if i just give it gas it bucks but if i give it a good amount of gas it is fine and pulls good so idk

shadow98gt · June 15th, 2007, 06:28 PM

what should the gap be? and what do i use to check it? sorry for all the questions i just am pissed off with this whole bucking problem

droppedbass87 · June 15th, 2007, 06:55 PM

056....

shadow98gt · June 18th, 2007, 11:29 AM

.056 or .054?

Boomer · June 18th, 2007, 11:45 AM

I have had good luck at .052", I was told to try it and have now seen a few books that list it at .052". Also check all your wires, one may not be on all the way causing it to jump a gap to reach the plug.

shadow98gt · June 18th, 2007, 12:57 PM

ok i check the wires but im almost positive it has to do wit the gap beacud=se the wires are all new and i snugged them all up and used the deelectric grease on the boots

MustangMatt96GT · June 18th, 2007, 01:22 PM

Make sure that the plug boots are pushed on to the plugs completely! Also do you have a CEL? Check Engine Light!

AnglicoGT98 · June 18th, 2007, 01:52 PM

Have you checked your injectors? One could be clogged...

shadow98gt · June 18th, 2007, 10:34 PM

i do have a check engine light but it was for my O2 sensor and it goes on and off and the injectors have been cleaned, i put in fuel injector cleaner every 3,000 miles but i will double check my plug boots and if not just get new plugs...

MustangMatt96GT · June 18th, 2007, 10:51 PM

I say that you go and get that code read, because IMO it is probably a misfire on one of the cylinders and then you can figure out which one to fix!

product1620 · June 19th, 2007, 03:05 AM

If you have stock coil packs I would gap the plugs to .052, you can get a spark plug gapper at any auto parts store.

product1620 · June 19th, 2007, 03:11 AM

I think you guys are making this more complicated then it is. He already said that he didn't gap the plugs, having incorectly gapped plugs can cause it to buck under low rpm/part throttle load, but not at WOT.

BTW using that fuel injection cleaner too often is bad for your car. Once every other oil change is more than sufficient.

1LOUDGT · June 19th, 2007, 05:27 AM

Might be time for a new fuel filter. When was the last time you changed it?

shadow98gt · June 19th, 2007, 12:25 PM

never changed the fuel filter and i will go to the auto parts store and buy a gap tool, but i dont think its gas because it feels like a misfire its not cutting out.

shadow98gt · June 19th, 2007, 12:25 PM

o and i have msd coli packs...

June 15th, 2007, 11:26 AM	#1
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	Car Bucks I have a 98 GT and when i just give my car a lttle gas its bucks pretty bad, it doesnt do it all the time just when it feels like it... i have replaced coil packs, wires, and plugs so i dony know what else i can do... i also cleaned out my plenum and no help... any suggestions? __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 15th, 2007, 12:09 PM	#2
MustangMatt96GT Proud American 1996 Mustang GT Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,689 iTrader: 3 reviews	Do you have a CEL? __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions 25.3 SFI Chassis Build Never Lift Racecars

June 15th, 2007, 12:35 PM	#3
product1620 Regular 98 GT 14.60 @ 94.78mph Join Date: Sep 2006 Location: Scranton, PA Posts: 290 iTrader: 0 reviews	Are you sure you gapped the plugs correctly? __________________ 1998 GT FRPP: 4.10s, Alluminum d/s STEEDA:upper/lowers, springs, cc plates, tri-ax TOKICO: Adjustable shocks SPEC: alluminum flywheel K&N: Intake Screamin Demon ignition ram: clutch ----------------------- BUCK OFAMA

June 15th, 2007, 12:50 PM	#4
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	i dont know what a CEL is and yea i just bought plugs that fit my car... but it has been doing this for awhile and i dunno!? it usually does it after i am rough on it, but then sometimes it just does it to piss me off... __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 15th, 2007, 01:27 PM	#5
product1620 Regular 98 GT 14.60 @ 94.78mph Join Date: Sep 2006 Location: Scranton, PA Posts: 290 iTrader: 0 reviews	Just cause they fit, doesn't mean they are gapped correctly take one of them out and check the gap. Does it buck under a low rpm load? __________________ 1998 GT FRPP: 4.10s, Alluminum d/s STEEDA:upper/lowers, springs, cc plates, tri-ax TOKICO: Adjustable shocks SPEC: alluminum flywheel K&N: Intake Screamin Demon ignition ram: clutch ----------------------- BUCK OFAMA

June 15th, 2007, 06:26 PM	#6
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	yea but its more about gas... if i just give it gas it bucks but if i give it a good amount of gas it is fine and pulls good so idk __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 15th, 2007, 06:28 PM	#7
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	what should the gap be? and what do i use to check it? sorry for all the questions i just am pissed off with this whole bucking problem __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 15th, 2007, 06:55 PM	#8
droppedbass87 Hardcore Enthusiast Join Date: Sep 2006 Location: diberville,mississippi Posts: 1,894 iTrader: 0 reviews	056.... __________________ fraziers transmission service..

June 18th, 2007, 11:29 AM	#9
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	.056 or .054? __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 18th, 2007, 11:45 AM	#10
Boomer Enthusiast Join Date: Oct 2006 Location: warren, Mi Posts: 941 iTrader: 0 reviews	I have had good luck at .052", I was told to try it and have now seen a few books that list it at .052". Also check all your wires, one may not be on all the way causing it to jump a gap to reach the plug. __________________ Just another 10 second Mustang, what did you expect ? http://youtube.com/watch?v=BgykaUrmfvM

June 18th, 2007, 12:57 PM	#11
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	ok i check the wires but im almost positive it has to do wit the gap beacud=se the wires are all new and i snugged them all up and used the deelectric grease on the boots __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 18th, 2007, 01:22 PM	#12
MustangMatt96GT Proud American 1996 Mustang GT Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,689 iTrader: 3 reviews	Make sure that the plug boots are pushed on to the plugs completely! Also do you have a CEL? Check Engine Light! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions 25.3 SFI Chassis Build Never Lift Racecars

June 18th, 2007, 01:52 PM	#13
AnglicoGT98 Enthusiast Join Date: Feb 2007 Location: Coral Springs, FL Posts: 630 iTrader: 2 reviews	Have you checked your injectors? One could be clogged... __________________ Parting out 2003 SVT Cobra Air/Fuel http://www.moddedmustangs.com/forums...003-cobra.html Engine http://www.moddedmustangs.com/forums...003-cobra.html

June 18th, 2007, 10:34 PM	#14
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	i do have a check engine light but it was for my O2 sensor and it goes on and off and the injectors have been cleaned, i put in fuel injector cleaner every 3,000 miles but i will double check my plug boots and if not just get new plugs... __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 18th, 2007, 10:51 PM	#15
MustangMatt96GT Proud American 1996 Mustang GT Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,689 iTrader: 3 reviews	I say that you go and get that code read, because IMO it is probably a misfire on one of the cylinders and then you can figure out which one to fix! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions 25.3 SFI Chassis Build Never Lift Racecars

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June 19th, 2007, 03:05 AM	#16
product1620 Regular 98 GT 14.60 @ 94.78mph Join Date: Sep 2006 Location: Scranton, PA Posts: 290 iTrader: 0 reviews	If you have stock coil packs I would gap the plugs to .052, you can get a spark plug gapper at any auto parts store. __________________ 1998 GT FRPP: 4.10s, Alluminum d/s STEEDA:upper/lowers, springs, cc plates, tri-ax TOKICO: Adjustable shocks SPEC: alluminum flywheel K&N: Intake Screamin Demon ignition ram: clutch ----------------------- BUCK OFAMA

June 19th, 2007, 03:11 AM	#17
product1620 Regular 98 GT 14.60 @ 94.78mph Join Date: Sep 2006 Location: Scranton, PA Posts: 290 iTrader: 0 reviews	I think you guys are making this more complicated then it is. He already said that he didn't gap the plugs, having incorectly gapped plugs can cause it to buck under low rpm/part throttle load, but not at WOT. BTW using that fuel injection cleaner too often is bad for your car. Once every other oil change is more than sufficient. __________________ 1998 GT FRPP: 4.10s, Alluminum d/s STEEDA:upper/lowers, springs, cc plates, tri-ax TOKICO: Adjustable shocks SPEC: alluminum flywheel K&N: Intake Screamin Demon ignition ram: clutch ----------------------- BUCK OFAMA

June 19th, 2007, 05:27 AM	#18
1LOUDGT Enthusiast 2006 GT 11.99@114 Join Date: Sep 2006 Location: Orlando, FL. Posts: 806 iTrader: 0 reviews	Might be time for a new fuel filter. When was the last time you changed it? __________________ 2006 GT (Fastest) 2004 COBRA (Faster) 1990 LX 5.0 (Fast)

June 19th, 2007, 12:25 PM	#19
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	never changed the fuel filter and i will go to the auto parts store and buy a gap tool, but i dont think its gas because it feels like a misfire its not cutting out. __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

June 19th, 2007, 12:25 PM	#20
shadow98gt Regular 1998 Mustang GT Join Date: Apr 2007 Location: Scotia , NY Posts: 212 iTrader: 1 reviews	o and i have msd coli packs... __________________ Quit smilin your drivin a camaro!! Mods: Currently going through a sex-change. Going in Michael jackson coming out Kimbo Slice!! MM Cobra Member # 87

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