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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Slow on Take-off

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Unread 08-22-2007, 08:57 PM   #1
toke
I_R_Food
 
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1995 YJ Wrangler 
 
Join Date: Mar 2006
Location: Yermo Ca
Posts: 589
Slow on Take-off

ok the GC is starting to be a dog on take-off
but just on take off when im goin 30ish and whomp it ... it goes
its got the 4.7L V-8 and runs smooth as can be idle is good smooth shifting and even engine tone throughout the power range

so k&N intake (just cleaned) newer FM super 40

what are the recommendations? tuneup?
which plugs do you recommend?
fuel injector cleaners?
sea foam, stp?

oh and BTW I just bought a welder so I can finally install the rear KMA

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1995 YJ gone as well

2001 Grand RIP

2004 Rubicon RIP

Last edited by toke; 08-22-2007 at 09:07 PM..
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Unread 08-22-2007, 09:02 PM   #2
MuddyLuxury
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1999 WJ 
 
Join Date: Jun 2007
Location: Northern VA
Posts: 1,425
o2 sensor? and is it a v8? v8 ho? i6? does it idle rough? or smooth?
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-Jeb
99 WJ 4.7V8 selc-trac swap
285s re-tread
IRO 6.5 Long Arms
Aussie Locked Rear

in the works... lots deployments are great for jeep budgets

Go Doorless!


Things i need..
good spots in the mid atlantic to camp, hike, fish, kyak and wheel, if you know please share

Quote:
Originally Posted by 5.9 ANDY
i would do the rear.
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Unread 08-22-2007, 09:20 PM   #3
Katesdad
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Join Date: Nov 2006
Location: Complete, Confusion
Posts: 1,772
I m thinking cap rotor wires and plugs. If they are old. Some injector cleaner wouldnt hurt. I have the I 6 so Im not much help on what plugs or the way the 4.7 runs. Seems to me weak power under a load is a weak spark. Its a place to start.
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