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YOUR RESEARCHTricky Tiptronic Issue: Not Engaging In Any Gear
Leading reported evidence
Check levels in the differentials and they appear
Performed · outcome unconfirmed
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Performed · outcome unconfirmed · Original poster
As well, I've checked the levels in the differentials and they appear to be in good shape.
Leading evidence: 'Check levels in the differentials and they appear' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check levels in the differentials and they appear' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion · Original poster
Note: I did check all of the related fuses, and they appear to be in good working order.
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Suggestion · Original poster
A good idea, but I did check the shifter cable and it appears to be properly connected, as I can hear and feel the tranny shift into P, D or R just as it normally would.
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Suggestion · Original poster
So, I cleaned the speed sensor and wheel hub to see if that cured the problem with no luck.
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Suggestion · Original poster
A good idea, but I did check the shifter cable and it appears to be properly connected, as I can hear and feel the tranny shift into P, D or R just as it normally would.
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9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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Generation: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello to all. The car is a 00' 996 C4 Cab with 60K miles and has always been garaged, as well as, maintained. The trans fluid/filter were properly changed one year ago and double-checked again this week to ensure the level is correct. There are no leaks nor abnormal noises. So, I was surprised to have this tricky tranny issue arise.
The Problem: The car starts/runs fine, but when I put it into Drive, I can hear/feel the gear shift into D mode exactly as it would normally do. However, it will barely move forward/reverse on level ground, even when considerably raising the rpms. The same also applies when shifting into reverse. The problem exists in both Auto and Manual modes.
Note: The night before this issue occurred. The car ran and shifted perfectly. But, it was raining but didn't seem to have any effect on performance. That same night, everything was normal when I parked the car in the garage. The next morning, this mystery problem occurred out of nowhere. So, I'm completely confused and clearly need help on this doozy.
FYI: I only have OBD diagnostics, mid-level mechanic experience, and a fairly extensive set of hand tools
Far fetched perhaps but could it be that all brake pads on all 4 wheels are sticking to the brake disks after driving through the rain and then parking the car?
Or some electric issue where moisture has gotten into the connector of the automatic gearbox.
First, thanks for your responses. I appreciate the suggestions.
A good idea, but I did check the shifter cable and it appears to be properly connected, as I can hear and feel the tranny shift into P, D or R just as it normally would.
But, I did notice one of the CV axles leaking a bit of grease around the boot. So, I cleaned the speed sensor and wheel hub to see if that cured the problem with no luck.
I do think there's a chance one of the tranny connectors may have taken in some water and possibly corroded overnight. I'll continue checking all of the wiring. Note: I did check all of the related fuses, and they appear to be in good working order.
As well, I've checked the levels in the differentials and they appear to be in good shape.
Today, I rented a durametric scanner from Ebay, which may shed some light on this mystery issue.
Do the lights on the dash follow the shift lever? If the lights don't match the lever the transmission TCU won't operate any of the hydraulic solenoids.
Curious if this was ever solved. Having the same issue with a 986 2.7 tiptronic. Shfter will shift, indicates the correct gear on the dash, but no movement from the car. There is sometimes a little movement with higher revs, but nothing substantial.
There is fluid leakage around the axle boot and transmission pan. Assuming a lack of fluid is causing the torque converter to not work? Or sensors or solenoid aren't working. Car only has 89k miles, but hasn't been running for some time.
Given that you have leaking fluid near the pan, I would assume your automatic transmission fluid is leaking. Confirm the fluid level, top it off if necessary, and try again.
