| Topic Starter |
Message |
 Shift Solenoid 2/Trans Fail Safe on ZF5HP24 gearbox |
RRPhil
 8th Oct 2025 7:58pm
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Forum: Technical (L322) · Replies: 17 · Views: 5780 · Subject: Shift Solenoid 2/Trans Fail Safe on ZF5HP24 gearbox |
I'll try sending you a PM
Phil |
| Transmission Fault, Now we have Codes |
RRPhil
8th Oct 2025 7:39pm
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Forum: Technical (L322) · Replies: 2 · Views: 174 · Subject: Transmission Fault, Now we have Codes |
| Clearly the communication/interface U-code will be tricky to pin down, but I guess you could start by replacing the torque converter lock-up clutch solenoid to see if this addresses the P-code. The to ... |
| Torque Converter Part Number 6HP26X 4.4 V8 |
RRPhil
7th Oct 2025 9:15pm
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Forum: Technical (L322) · Replies: 4 · Views: 187 · Subject: Torque Converter Part Number 6HP26X 4.4 V8 |
| Your torque converter (4168 026 608) is commonly referred to as the ‘D85’ unit and was used in the Discovery 3 & Range Rover Sport (transmission part nos. 1068 020 044/065/069) as well as the ... |
| Trans Failsafe Solenoid B and Shifter Codes |
RRPhil
12th Sep 2025 11:28pm
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Forum: Technical (L322) · Replies: 4 · Views: 364 · Subject: Trans Failsafe Solenoid B and Shifter Codes |
Exactly the procedure I would recommend 
Just to point out that even second-hand inhibitor switches are ridiculously expensive (here in the UK, at least) so I would consider stripping y ... |
| Trans Failsafe Solenoid B and Shifter Codes |
RRPhil
12th Sep 2025 12:52am
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Forum: Technical (L322) · Replies: 4 · Views: 364 · Subject: Trans Failsafe Solenoid B and Shifter Codes |
| It would make sense to eliminate the inhibitor (or gear position) switch from your enquiries before delving deeper into the transmission itself. Do you have the actual P codes for the faults, or are y ... |
| Diffs, transfer case & tranny oil service |
RRPhil
9th Sep 2025 9:20pm
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Forum: Maintenance & Mods (L322) · Replies: 24 · Views: 5926 · Subject: Diffs, transfer case & tranny oil service |
Front – Castrol SAF-XO 75W/90. Land Rover part no. TYK500010 or LRN7591. Service fill = 0.75 litres
https://www.fullfatrr.com/gallery/albums/userpics/11451/TYK500010.jpg
Rear (ETM Diff.) - Ori ... |
| 6HP28 Possibly Juddering |
RRPhil
2nd Sep 2025 11:17pm
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Forum: Technical (L322) · Replies: 52 · Views: 12861 · Subject: 6HP28 Possibly Juddering |
I'll try sending you a PM and we can see if you're able to respond.
Phil |
| 6HP28 Possibly Juddering |
RRPhil
30th Aug 2025 7:01pm
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Forum: Technical (L322) · Replies: 52 · Views: 12861 · Subject: 6HP28 Possibly Juddering |
| Ooooh, I’m very keen on the Aston Martin Touchtronic II transmission, in fact I have three on my workbench at the moment. One is a 037 unit (4G4370041AF) from a 2006 DB9, the second is a 084 model ( ... |
| ZF5HP 24 Gearbox - Delayed and harsh engagement |
RRPhil
30th Aug 2025 6:31pm
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Forum: Technical (L322) · Replies: 13 · Views: 593 · Subject: ZF5HP 24 Gearbox - Delayed and harsh engagement |
| As you mentioned, SV-1 & SV-2 both use the same spring (0732 041 462) – which is also used for KV-D & KV-E – and SV-3 uses a 4mm shorter spring (0732 041 826), but with the same outside di ... |
| ZF5HP 24 Gearbox - Delayed and harsh engagement |
RRPhil
30th Aug 2025 3:01pm
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Forum: Technical (L322) · Replies: 13 · Views: 593 · Subject: ZF5HP 24 Gearbox - Delayed and harsh engagement |
Can you just confirm that you definitely have a '350' valve body assembly (in case someone in the past has swapped it out for an earlier assembly without all the later mods)
https://www.fullfatrr.c ... |
| ZF5HP 24 Gearbox - Delayed and harsh engagement |
RRPhil
29th Aug 2025 3:38pm
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Forum: Technical (L322) · Replies: 13 · Views: 593 · Subject: ZF5HP 24 Gearbox - Delayed and harsh engagement |
Accessing the 16-pin plug is a pain. I made up this little breakout board to make it easier to read of the resistances.
https://www.fullfatrr.com/gallery/albums/userpics/11451/normal_PICT0151.JPG
... |
| ZF5HP 24 Gearbox - Delayed and harsh engagement |
RRPhil
29th Aug 2025 11:10am
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Forum: Technical (L322) · Replies: 13 · Views: 593 · Subject: ZF5HP 24 Gearbox - Delayed and harsh engagement |
So, just to confirm, if you measure the resistance between pins 2 and 16 at the 16-pin connector you get an open circuit?
https://www.fullfatrr.com/gallery/albums/userpics/11451/normal_EDS1%20pins. ... |
| ZF5HP 24 Gearbox - Delayed and harsh engagement |
RRPhil
28th Aug 2025 7:02pm
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Forum: Technical (L322) · Replies: 13 · Views: 593 · Subject: Re: ZF5HP 24 Gearbox - Delayed and harsh engagement |
Once the engine and gearbox get warm drive engagement takes up to 2 seconds and is a harsh thump followed by a second thump.
Does this result in the TRANS. FAILSAFE PROG warning being displayed in th ... |
| P0783 is there a post remedy? |
RRPhil
14th Aug 2025 7:12pm
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Forum: Maintenance & Mods (L322) · Replies: 2 · Views: 412 · Subject: P0783 is there a post remedy? |
| That code indicates excessive slip during the 3-4 upshift. This is commonly caused by a worn rear stator bush. The TCM probably previously adjusted the E clutch adaptions to the extreme ends of its ra ... |
| Transmission fault P0721-62 and P215-62 - transfer box? |
RRPhil
13th Aug 2025 8:04pm
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Forum: Maintenance & Mods (L322) · Replies: 8 · Views: 756 · Subject: Transmission fault P0721-62 and P215-62 - transfer box? |
| I assume you mean P0721 for the first code (typo?). The transmission output speed sensor is connected to the electronic module of the Mechatronic unit. I wonder if it might be worth disconnecting the ... |
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