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Unread 06-01-2009, 06:43 PM   #1
spikeystrip
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1993 XJ Cherokee 
 
Join Date: Oct 2007
Location: eastern PA
Posts: 88
gc 5.2 sputtering/bucking/backfiring

i decided to give my 5.2 a tuneup a couple weeks ago so i went out and got basic plug wires, cap and rotor. i did it all and ever since then my jeep runs like ****. if i accelerate slowly it will buck and and backfire and it also does it when im cruising so its impossible to drive the highway. if i accelerate fast or floor it , it will run fine and strong. i do not have any lack of power by the way and i changed the wires but still has same symptoms. How can i test my tps? is there anything else that would cause these symptoms. thanks

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1993 cherokee country.
Rustys 5inch lift
firestone 31x10.5 w/ cragar d windows
1995 Grand Cherokee
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AWD 5.2 V8
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Unread 06-02-2009, 05:42 AM   #2
ratmonkey
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1997 ZJ 
 
Join Date: Dec 2006
Location: , Pennsylvania
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couting of the wires, improper gap on plugs, switched wires around possibly, or the wrong plug.
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'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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Unread 06-02-2009, 05:51 AM   #3
newfieZJ
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1995 ZJ 
 
Join Date: May 2008
Location: , Alberta
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X 2 , check your spark plug wire routing , confirm all the ends are snapped properly on the dist cap and spark plugs .

There is also a TPS for the plugs wires and how to route them properly , cheap parts may increase the chances of problems from this issue . Here it is http://dodgeram.info/tsb/1998/18-48-98/18-48-98.htm .
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Unread 06-02-2009, 09:03 AM   #4
ZJPunk98
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2002 WJ 
 
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these guys are right....
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