P 0740 transmission code - JeepForum.com

 
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post #1 of 3 Old 12-20-2013, 01:16 PM Thread Starter
justn
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2002 WJ 
 
Join Date: Apr 2011
Location: Bakersfield
Posts: 307
Wj P 0740 transmission code

Just the other day on the highway my jeep decided to turn on the check engine light.

Checked the odometer code, got a p 0700, so I took it to get the codes read and discovered its a p 0740 which is a torque converter lockup malfunction code. The ODB II meter also said it was an open circuit.

I have no huge symptoms other than the transmission not shifting all the way into overdrive sometimes, or taking a long time to shift into overdrive.

Transmission fluid level is good, and it doesn't smell burnt.

What are some easy things to check first?


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post #2 of 3 Old 12-22-2013, 09:36 PM
link375
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2001 WJ 
 
Join Date: Nov 2013
Location: Provo
Posts: 95
check the transmission relay and make sure it works properly
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post #3 of 3 Old 12-23-2013, 10:01 AM
Double E
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Join Date: Oct 2003
Location: Raleigh, NC
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Test your input sensors: http://www.jeepforum.com/forum/f13/s...ailure-561977/

'04 Freedom Edition HO & '04 Overland HO (previous '00 Laredo 4.7)
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