P0740 ****** code

mightybeet said:

the regret is coming from is the whole valve body thing. i just sent it back for replacement or repairs. going to be at least 2 more weeks before i get my liberty back.

rebuild was either 12 or 13 hours so about $1200 for labor.

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yellocoyote said:

That I don't know. If you want, I can get a number for you and you can call.

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yellocoyote said:

:hahano:

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Tog said:

ATS do a remanufactured 42RLE better stronger internals they are around the $4000 shipped to Australian with currency conversion should be way cheaper over in the US

Sent from my SM-G930F using Tapatalk

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HoosierJeeper said:

It won't sit in your driveway for more than a few weeks. :happy175:

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CactusJacked said:

Holy crap, can you shop around? A buddy of mine recently bought an 04 Grand Cherokee and the trans started slipping badly. Code said it was a bad torque converter, which it was. But with the miles it had (140k), a replacement/rebuild was the sensible thing to have done. I sent him to a highly recommended local independent transmission shop. $1500 out the door (no ups, no extras) for the guy to drop the trans, rebuild it, new torque converter, new shift solenoid pack (done automatically since they tend to crap out and are buried under the valve body), and reinstall. I considered that a hell of a good deal.

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rbtconsultants said:

The brake tap test. Cruise in 4th around 50-60 mph on flat highway light throttle steasy for like 10 seconds, this should lock the torque converter. Then tap the brakes lightly, staying stay on the throttle, and your rpms should go up a couple/few hundred. The idea is that tapping the brakes unlocks the torque converter and your rpms go up.

In my case, tapping the brakes does nothing. Seems this means the torque converter never locks so that's why it can't unlock and that's why the rpms don't go up. Hence the p0740.

From what I gather, there is no way you can tell if the torque converter locks just by "feel" if it's otherwise shifting fine. Like I said, I haven't seen anyone solve this without a torque converter If you keep driving it on the highway when you are getting this code you will eventually overheat the transmission, burn the fluid, and ruin everything. *****.

Bob

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BigWill said:

I did the brake test with my liberty and it jumped from 2000 to 3000 rpms...is that normal? I have po740 also. Mine is acting like out of gas and sometimes won't start

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