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Unread 07-03-2014, 08:41 AM   #1
koivu
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2004 XJ Cherokee 
 
Join Date: May 2013
Location: somerset, wi
Posts: 4
tps problems 07 3.7L

could it be tps? jeep runs normal to the store ,shut off ,go in , restart and leave jeep wont rev past 2000rpm with accelerator to the floor, pull over turn off restart and runs perfect again, happens about every 5 starts

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Unread 07-03-2014, 10:36 AM   #2
jeepin_in_a_wk
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2007 WK 
 
Join Date: Feb 2014
Location: colorado springs, colorado
Posts: 74
Have any dtc's?
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Unread 07-03-2014, 12:03 PM   #3
koivu
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2004 XJ Cherokee 
 
Join Date: May 2013
Location: somerset, wi
Posts: 4
No dtcs, also this is a grand cherokee
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Unread 07-03-2014, 07:18 PM   #4
tom19511
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2006 WK 
 
Join Date: Mar 2009
Location: Sheffield Lake, OH
Posts: 319
search shifter module on this forum.
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2006 Grand Cherokee Laredo 3.7
2007 Liberty Sport 3.7
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Unread 07-03-2014, 07:49 PM   #5
Nejeep
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Join Date: Jun 2006
Location: Lincoln, NE
Posts: 410
I would expect the TPS sensor to throw a code if it were bad. Doubt the shifter module would prevent the engine from running over 2k rpm. Sounds more like a wiring problem somewhere, bad ground, shorted O2 sensor or wire, corroded battery connection, etc. Any recent work done on the engine that might have messed up wiring? Does the engine sound normal but just not rev more than 2k rpm or does it misfire and die? I believe 07 was the first year for drive-by-wire on the 3.7 engine.
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Unread 07-04-2014, 08:25 AM   #6
koivu
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2004 XJ Cherokee 
 
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Location: somerset, wi
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Engine runs totaly normal,no clue that anything is wrong except no acceleration
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Unread 07-05-2014, 08:09 PM   #7
patconva
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My 07 has done that 3-4 times over the last two years. I finally noticed that when it happens the little square on the shift indicator that indicates which gear you are in is lit on EVERY gear. The solution for me has been to turn off the car and restart it - has cleared it every time do far.
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Unread 07-06-2014, 05:24 PM   #8
rivisio
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2005 WK 
 
Join Date: Jan 2014
Location: Winnipeg, Manitoba
Posts: 10
my jeep also does this, its a 2005 3.7L i also thought it would be tps sensors, been doing it for the last 2 weeks.
Only happens after engine goes above 3000 rpms. if i keep it under 3000 it wont get stuck at 2000rpms.
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