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Trans flush or pan drop? #5415556 04/28/20 12:01 PM
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HoosierJeeper Offline OP
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I have about 60k on my Jeep Liberty transmission since the rebuild. I'm getting conflicting information - would it better to do a pan drop or take it do the dealer to do a flush. It's a 42RLE.

Thanks!


19 Jeep Renegade Trailhawk 1.3T
15 Jeep Cherokee Limited V6
07 Land Rover LR3 SE V8
05 Jeep Liberty Limited V6
96 Jeep Cherokee Country 4.0
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415560 04/28/20 12:07 PM
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Char Baby Offline
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I have only ever done pan drops & drain & fills on those with drain plugs.

Last edited by Char Baby; 04/28/20 12:08 PM.

Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415561 04/28/20 12:07 PM
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Barkleymut Offline
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Pan drop, clean the magnet, change the filter. How many miles on the Jeep?


09 Vue 2.4L 4spd AT/ 09 Flex 3.5L / 96 F150 5.0 5speed / 07 Mustang GT auto
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415567 04/28/20 12:14 PM
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HoosierJeeper Offline OP
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It's got about 209k on it. It's a long term keeper/toy so I want to do what's best for it!


19 Jeep Renegade Trailhawk 1.3T
15 Jeep Cherokee Limited V6
07 Land Rover LR3 SE V8
05 Jeep Liberty Limited V6
96 Jeep Cherokee Country 4.0
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415568 04/28/20 12:15 PM
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Donald Offline
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A flush gets almost all the old ATF out and is more cost effective if you want to exchange almost all the ATF for new. If you just want to "refresh" the fluid and get several QTs of new stuff in there, then a pan drop is fine.


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415575 04/28/20 12:23 PM
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Barkleymut Offline
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4 Jeeps in your sig, so you may be a good person to ask. My mom wants a "CRV sized" SUV. What engine/trans combo is the most reliable in the Jeep lineup?


09 Vue 2.4L 4spd AT/ 09 Flex 3.5L / 96 F150 5.0 5speed / 07 Mustang GT auto
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415590 04/28/20 12:40 PM
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A_User55555 Offline
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I'd do a pan drop and change the filter.


2011 Cadillac DTS. No the headgaskets have not blown.....
5W-30 Valvoline Full Synthetic with a Purloator Boss PBL25288 Filter
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415597 04/28/20 12:50 PM
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rob1715 Offline
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I know 2 guys who own trans shops and both said to never do a flush. They said D/R every 30k miles or so will do it.

Re: Trans flush or pan drop? [Re: rob1715] #5415610 04/28/20 01:04 PM
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Donald Offline
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Originally Posted by rob1715
I know 2 guys who own trans shops and both said to never do a flush. They said D/R every 30k miles or so will do it.


What was their reason? They don't want to be responsible?


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415617 04/28/20 01:22 PM
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Barkleymut Offline
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Maybe they have seen a few too many jiffylube specials where the correct fluid was not used.


09 Vue 2.4L 4spd AT/ 09 Flex 3.5L / 96 F150 5.0 5speed / 07 Mustang GT auto
Re: Trans flush or pan drop? [Re: Donald] #5415618 04/28/20 01:26 PM
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edyvw Offline
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Originally Posted by Donald
Originally Posted by rob1715
I know 2 guys who own trans shops and both said to never do a flush. They said D/R every 30k miles or so will do it.


What was their reason? They don't want to be responsible?

If it is safe to do flush, why should they think anything is going to fail?
Oh yeah, transmission manufacturers do not recommend flush.


11' BMW 328i xDrive 6MT (Pennzoil Platinum Euro 5W40+ MANN filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OE filter).
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415627 04/28/20 01:49 PM
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slacktide_bitog Offline
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Get an aftermarket transmission pan that has a drain plug, so you never have to drop the pan again smile

Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415630 04/28/20 01:58 PM
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csandste Offline
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Not allowed to work on my own cars--condo rules. Have had several cars flushed at a tire/service place. A Kia and two GM cars with MaxLife. No problems whatsoever.


2017 Kia Soul+ Valvoline Daily Protection 5w30+ a bit of Harvest King syn 5w30-- 75,000 miles
Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415644 04/28/20 02:10 PM
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Kestas Offline
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Transmission Fluid Exchange

For those interested, here's the fluid change method I use on all my cars that don't have a torque converter drain:

1. Pull the transmission dipstick (located near the firewall in most cars). Fresh fluid is translucent and cherry red. Some darkening is normal, but if it is reddish brown or mustard color and smells like burnt varnish, it is worn out.

2. Make sure the fluid is warm.

3. For pans that don't have drain plugs, remove all pan bolts except for the corners. Remove the bolt from the lowest corner, then loosen the other corner bolts a turn or two. Carefully pry the pan to break the gasket seal at the lowest corner. Drain mostly from this corner. With good technique you can avoid or at least minimize the red bath.

4. Remove pan. Inspect the pan before cleaning. A small amount of fine grey clutch dust is normal. However, if you find metal shavings, there has been transmission damage. Remove all old gasket material. Clean the pan and magnet with solvent and wipe dry so there is no harmful residue. Shop air can be used to clean the magnet. Hammer back any pan damage from previous overtightening.

5. (Optional) Drill hole in pan at low point and install a drain kit available from most auto supply houses. Make sure the kit protruding inside the pan doesn't interfere with anything on the transmission.

6. Replace filter. If it’s a metal screen filter, it can likely be cleaned and reused.

7. Position gasket on pan. Some gaskets have four holes slightly smaller than the rest to allow four bolts through the pan and through these smaller holes to hold the four bolts and gasket in place.

8. Hand tighten pan bolts in a criss-cross pattern. After that, use a torque wrench to tighten bolts to proper ft-lbs as per manufacturer.

9. Refill the transmission using only the amount shown as “refill capacity” in the owners manual (or an equal amount that was drained), using the type of fluid specified for the vehicle.

10. You now have replaced the trans fluid and filter according to manufacturer’s requirements. Fluid is changed in the pan only.

You can stop here and go to Step 16 if you just wanted a regular drop-the-pan fluid change. For a complete exchange of the fluid (including transmission body and torquer converter) continue with the next steps.

11. Obtain the total system capacity of the vehicle from the manufacturer. Have this amount - plus a bit more - of fluid readily available.

12. Disconnect the oil cooler line from the transmission cooler. Tickle the ignition to find the flow direction. Direct the stream of fluid toward a receptacle. It is better to use a clear length of hose with a shoplight laying next to it so you can see when all the old fluid has left the system.

13. Start the engine, let it idle to pump out old trans fluid until you start seeing air bubbles.

14. Stop the engine. Refill transmission through fill tube with fresh fluid - same amount as pumped out (usually about 2-3 quarts). After the first iteration, it helps to shift the transmission through the detents, pausing at each one, to get the old fluid out of the circuits.

15. When either the fluid color brightens or the total capacity has been replaced, shut the engine off and re-attach the oil cooler line. All trans fluid has now been changed.

16. Button everything back up. Clean up the mess.

17. Recheck the fluid level. With the car on level ground, set the parking brake and the transmission in “Park” or “Neutral.” Let the engine idle for a few minutes. Shift the transmission through all detents, pausing momentarily at each position, before returning the lever to “Park” or “Neutral.” Check the fluid level again and check for leaks. Refill fluid so it is slightly undercharged. This way it can be properly checked and topped off after a long drive.

Re: Trans flush or pan drop? [Re: HoosierJeeper] #5415654 04/28/20 02:17 PM
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demarpaint Offline
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Pan drop filter change, fluid exchange. Follow the procedure above. ^^


God Bless Our Troops

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