What to look for on a bad 65RFE valve body

[TheEnder]

second gear when it was COLD this issue happened?

Yup.


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[Burla]

Your original plan was to replace VB/SP and this has never been done yet. I think if that was done and you still had issues it may be easier to nail down. Post the codes..

You have an unused gray one still yes?

 

[Burla]

Through all of your other issues this is a completely new symptom? You never had a 2nd gear limp?

 

[TheEnder]

Your original plan was to replace VB/SP and this has never been done yet. I think if that was done and you still had issues it may be easier to nail down. Post the codes..

You have an unused gray one still yes?

The unused gray one is still in transit, USPS is taking forever. Also,

P0868 - Transmission Fluid Pressure Low

P0847 - Transmission Fluid Pressure Sensor/Switch “B” Circuit Low

P0732 - Gear 2 Incorrect Ratio


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[TheEnder]

Through all of your other issues this is a completely new symptom? You never had a 2nd gear limp?

NEVER have had a second gear Limp Home mode, never had a Limp Home mode either.


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[TheEnder]

May have found my issue. I just checked the trans fluid level with the engine off and it’s not even registering on the dipstick, even though i put 5 quarts in.


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[Burla]

LOL, that will do it. Whew...

 

[TheEnder]

LOL, that will do it. Whew...

TELL ME ABOUT IT! Guess i’m off to get more tomorrow.


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[Hemi395]

May have found my issue. I just checked the trans fluid level with the engine off and it’s not even registering on the dipstick, even though i put 5 quarts in.


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Awesome hopefully that's the issue[emoji106][emoji106]

Probably bled some air out after you drove it. I'm assuming taking the valve body out gets more fluid out than a simple pan drop...

 

[TheEnder]

Awesome hopefully that's the issue[emoji106][emoji106]

Probably bled some air out after you drove it. I'm assuming taking the valve body out gets more fluid out than a simple pan drop...

Yeah, i’m guessing a dry VB and a dry SP take a lot of fluid.


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[TheEnder]

Looks like that may have been the issue, i put 4 more quarts of trans fluid in and it stopped the extremely loud SP and it seems to go into gear better now, i haven’t driven it yet, as i’m waiting for my dad to get home in case anything happens.


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[Hemi395]

Looks like that may have been the issue, i put 4 more quarts of trans fluid in and it stopped the extremely loud SP and it seems to go into gear better now, i haven’t driven it yet, as i’m waiting for my dad to get home in case anything happens.


Sent from Blue Onyx

Sounds like that what it was. I doubt it would go into gear like that if it were a bad SP.

Keep us posted [emoji106]

 

[TheEnder]

Sounds like that what it was. I doubt it would go into gear like that if it were a bad SP.

Keep us posted [emoji106]

The second solenoid pack came in today, so if it is a bad SP, i have a replacement waiting.


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[TheEnder]

Sounds like that what it was. I doubt it would go into gear like that if it were a bad SP.

Keep us posted [emoji106]

Will do, i’m gonna drive it around the block and see what happens. Before, it wouldn’t move up the driveway without throwing a code for Low Transmission Fluid Pressure, and now it moves up there freely. Let’s pray!


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[Hemi395]

It makes sense since the RFE line pressure is 100% PCM controlled. If there's not enough fluid and the PCM can't control pressure, instant limp mode.

I'd let it idle in N for at least 5 mins so the pump runs to get the fluid circulated and check the level before driving it...

 

[TheEnder]

It makes sense since the RFE line pressure is 100% PCM controlled. If there's not enough fluid and the PCM can't control pressure, instant limp mode.

I'd let it idle in N for at least 5 mins so the pump runs to get the fluid circulated and check the level before driving it...

Looks like you were right... truck is fine now.


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[TheEnder]

It makes sense since the RFE line pressure is 100% PCM controlled. If there's not enough fluid and the PCM can't control pressure, instant limp mode.

I'd let it idle in N for at least 5 mins so the pump runs to get the fluid circulated and check the level before driving it...

I love this truck even more now, i’m extremely happy with how this turned out. Thank you to everyone with all the help, i’m putting the extra solenoid pack in my closet.


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[Hemi395]

Looks like you were right... truck is fine now.


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AWESOME!!!!

 

[TheEnder]

AWESOME!!!!

Question... is the relearn needed? It’s shifting so nicely and there’s no jolt or anything when shifting AT ALL anymore, not even when shifting from park to drive/reverse, and the shifts are firm and pretty quick too, it’s shifting almost exactly like my 300 does.


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[Hemi395]

Question... is the relearn needed? It’s shifting so nicely and there’s no jolt or anything when shifting AT ALL anymore, not even when shifting from park to drive/reverse, and the shifts are firm and pretty quick too, it’s shifting almost exactly like my 300 does.


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I was under the impression it was something you "should always" do but I'm not sure if its required. I'm also not sure if having it done on a trans that is shifting fine will do anything at all...