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Unread 08-20-2013, 04:26 PM   #1
tylerlinn09
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Join Date: Aug 2013
Location: akron, ohio
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help

I have a 95 zj grand Cherokee I just put a tranny in it and went to start it and it ideals good till it warms up then it start to sputter and back fire and has no power when its in gear but in park I can rev it up and when I let off it sputters and back fires and just runs like **** if anyone knows what it could be it would be appricated

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Unread 08-20-2013, 06:32 PM   #2
gearheadnick
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1997 ZJ 
 
Join Date: Mar 2012
Location: Tunkhannock, PA
Posts: 576
My first guess is a bad O2 sensor. Unplug it and see if it runs ok.
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Unread 08-21-2013, 07:42 AM   #3
Myusername1674
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1995 ZJ 
 
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Location: Chattanooga, TN
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Seams sorta like a sensor problem, does it do it in neutral? Maybe bad/dirty IAC? Might be the transmission, idk a thing about these transmissions except how to change the fluid. Is the tranny new or used?
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Unread 08-21-2013, 03:27 PM   #4
tylerlinn09
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The tranny is used that came out of a jeep that the frame snapped on so it was good and the o2 sensor wasn't it what do u think about the coolant temp sensor being bad
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Unread 08-21-2013, 03:48 PM   #5
coralman
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1998 ZJ 
 
Join Date: Jul 2010
Location: florida
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Damage the crank sensor or wiring while swapping trans?
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Unread 08-21-2013, 04:04 PM   #6
tylerlinn09
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New crank sensor put in when tranny was changed
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Unread 08-21-2013, 06:26 PM   #7
ZeeJay1997
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1997 ZJ 
 
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what brand of crank sensor?
pinched wire is suspect too.
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