Feels like I'm loosing power when I punch the gas...

Discuss your 2000-2005 Bonneville SE, SLE, SSEi, Buick Le Sabre 00-05 and Buick Park Avenue 97-05. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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Mfitzy
SE Member
SE Member
Posts: 17
Joined: Tue Apr 02, 2013 9:22 pm
Year and Trim: 2002 Bonneville SSEI
Location: Germantown, MD

Feels like I'm loosing power when I punch the gas...

Post by Mfitzy »

I have noticed recently that when I punch the gas to pass someone or get onto the highway in my 2002 ssei, there is a loss of power for a half a second or so when my boost is at 5-6. I do need to change the spark plugs and wires, and I just replaced the cat and took out the resonator. All advice is much appreciated!
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nos4blood70
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Joined: Mon May 10, 2010 6:11 pm
Year and Trim: 2003 SLE
Location: Chicago, IL

Re: Feels like I'm loosing power when I punch the gas...

Post by nos4blood70 »

Go slow, I'd do plugs and wires first. Maybe it's a plugged cat as well.
-Car Guy Carl
"Penelope" - 2003 SLE - 250k Miles
"Sydney" - 2000 Honda S2000 - 101k miles
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redzmonte
Posts like an L67
Posts like an L67
Posts: 1358
Joined: Mon Jun 13, 2011 4:21 am
Year and Trim: 2000 SSEI

Re: Feels like I'm loosing power when I punch the gas...

Post by redzmonte »

I would test fuel pressure.. my car did this and then it would jump up and car would take off.. bad pump.. replaced it and all is well. bad cat would make it slower the more RPMs you gave it so i would think its not the cat.
Shane "RedZMonte"
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
Mfitzy
SE Member
SE Member
Posts: 17
Joined: Tue Apr 02, 2013 9:22 pm
Year and Trim: 2002 Bonneville SSEI
Location: Germantown, MD

Re: Feels like I'm loosing power when I punch the gas...

Post by Mfitzy »

I'm hopefully going to be able to change out all the spark plugs and wires by next weekend, so I'm hoping that will help things, I know they are due to be changed. I just replaced the cat so I would hope there is nothing wrong with it! I had the fuel pumped changed about 7k miles ago. Thanks for all of the advice guys! I've got 105,000 miles on her now so I'm hoping this isn't the beginning of a bunch of troubles .
Mfitzy
SE Member
SE Member
Posts: 17
Joined: Tue Apr 02, 2013 9:22 pm
Year and Trim: 2002 Bonneville SSEI
Location: Germantown, MD

Re: Feels like I'm loosing power when I punch the gas...

Post by Mfitzy »

Hey guys just wanted to do an update. Changed the spark plug wire set and all the plugs, went with the autolight 103 copper. The loss of power is gone now, getting 6-7lbs of boost and its feeling strong! Thanks for the help.
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