question on td6 gearbox in the mornings i first start ff put in drive press pedal and nothing for first 2 to 3 seconds is this normal its done it as long as ive had it even though ive had gearbox service .it runs fine rest of the day.

Issues that only occur when the transmission is cold are often linked to low fluid level. Maybe worth checking it.

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vmaxer wrote:

question on td6 gearbox in the mornings i first start ff put in drive press pedal and nothing for first 2 to 3 seconds is this normal its done it as long as ive had it even though ive had gearbox service .it runs fine rest of the day.

Hi vmaxer

a full gearbox/TC flush with a new autobox filter will sort out your problem.

As your rig will get on in miles, once you feel a slip in TC lockup under heavy acceleration in 5th gear, immediately take the rig to your friendly gearbox place and ask them to rebuild the TC and modify the gearbox oilpump and solenoid with the Sonnax kit.

http://www.sonnax.com/parts/4120-remanufactured-valve-body (GM-071 for L322 Td6)

Failure to do so will strand you with a destroyed TC and a FULL gearbox rebuild. Unfortunately got my t-shirt on that one.

Good luck

vmaxer wrote:

question on td6 gearbox in the mornings i first start ff put in drive press pedal and nothing for first 2 to 3 seconds is this normal its done it as long as ive had it even though ive had gearbox service .it runs fine rest of the day.

Hi fil b

When you say you press the pedal and nothing happens, then I deduct you mean the accelerator. This has nothing to do with the box but seems to me like an electronic issue.

Before going on a wild goose chase, fully charge the battery and see if that changes anything. If not then you need to hook it up to some serious diagnostic unit, either dealer or MSV-2. If the battery charge doesn't solve, you would most probably have to dive into canbus issues.

Hope this helps

Please give feedback once solved

Mine has done the same for years, reverse fine but only forward when warmed up or put into manual mode, will engage drive in auto after approx 10 secs, had gearbox services etc but live with it now

Hi rosco

the situation that you describe points to a valve body issue. When my box went south I insisted that it be fitted with the Sonnax modifications, which cure 2 of the main causes of gearbox failure on the 5L40DE GM box:

1. Excessive bore wear on the oil pump solenoid housing.

2. Excessive bore wear on the valve body solenoid bores.

Here is the link


http://www.sonnax.com/parts?utf8=%E2%9C%93...mit=Filter


Not fixing your drive engage hesitation will most probably over time lead to the destruction of the TCC, as it is a pressure related issue.

Hope this helps

Thanks hgbosch, will look into it (sorry to hijack OP)

so cars been in to check oil lever and for them to sort problem out and guess wot the bloody thing didnt miss a beat they had it for 3days tried it every morning and every morning spot on mechanic said its probably the torque converter emptying over night or fluid is draining passed a seal over night but with it not happening on him he could,nt say then the wife piped up that its never happened on her must be that the ff dos,nt like me

I had that problem a while back. If the car was left standing overnight, in the morning after starting it wouldn't drive forward for a few seconds. I mentioned it to a gearbox specialist and he told me it sounded like the oil was draining back into the sump and needed a few seconds to circulate back into the box and build up pressure. I believe it is a faulty valve or seal (as mentioned in above post). I did have one embarrassing occasions when I was staying at a hotel with valet parking. He eventually turned up at reception in the morning saying he thought he had broken the car as he couldn't get it moving.

I ran the car like that for over a year. Eventually I had other gear box issues (probably not related) and changed the box. No longer FF owner but still interested. Present car Jaguar XE
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