Automatic tranny in a '85 Pickup

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Old 07 Dec 2009, 02:02 am   #1 (permalink)
Psychiatris
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Default Automatic tranny in a '85 Pickup

Hi all,

Bought my grandpa's '85 Toy pickup as I needed a vehicle quickly.
309,000 miles on it and the tranny leaks. Couldn't find where it was
leaking, but an EZ Lube tech said it was leaking bad via the output
shaft and wouldn't do a transmission flush.

The info I need is, I suppose, a part number? Is it a seal, or a gasket?
I can't afford the labor so I need to do it myself.

I appreciate any help. It's the SR5 1/2 ton pickup with EFI, 4 cylinder.

Patrick
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Old 07 Dec 2009, 02:12 am   #2 (permalink)
Rastamon
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Default Re: Automatic tranny in a '85 Pickup


"Psychiatris" <Psychiatrist@whatswrong.com> wrote in message
news:hficre$eog$1@aioe.org...
> Hi all,
>
> Bought my grandpa's '85 Toy pickup as I needed a vehicle quickly. 309,000
> miles on it and the tranny leaks. Couldn't find where it was leaking, but
> an EZ Lube tech said it was leaking bad via the output shaft and wouldn't
> do a transmission flush.
>
> The info I need is, I suppose, a part number? Is it a seal, or a gasket? I
> can't afford the labor so I need to do it myself.
>
> I appreciate any help. It's the SR5 1/2 ton pickup with EFI, 4 cylinder.
>
> Patrick


Try Rock Auto or Napa, they should be able to look it up for you. Last
resort is the dealer. Bring your VIN number just in case there was
production change.

It's probably a seal if it's leaking from the shaft. Gaskets are mainly for
matings and cover plates. Also check the transmission cooler lines at the
front that connect to the radiator, those are notorious for leaking, and
need to be replaced every so often.

BTW does the Overdrive still work? Has the timing chain been replaced?


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Old 09 Dec 2009, 08:16 pm   #3 (permalink)
Psychiatris
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Default Re: Automatic tranny in a '85 Pickup

Rastamon wrote:
> "Psychiatris" <Psychiatrist@whatswrong.com> wrote in message
> news:hficre$eog$1@aioe.org...
>> Hi all,
>>
>> Bought my grandpa's '85 Toy pickup as I needed a vehicle quickly. 309,000
>> miles on it and the tranny leaks. Couldn't find where it was leaking, but
>> an EZ Lube tech said it was leaking bad via the output shaft and wouldn't
>> do a transmission flush.
>>
>> The info I need is, I suppose, a part number? Is it a seal, or a gasket? I
>> can't afford the labor so I need to do it myself.
>>
>> I appreciate any help. It's the SR5 1/2 ton pickup with EFI, 4 cylinder.
>>
>> Patrick

>
> Try Rock Auto or Napa, they should be able to look it up for you. Last
> resort is the dealer. Bring your VIN number just in case there was
> production change.
>
> It's probably a seal if it's leaking from the shaft. Gaskets are mainly for
> matings and cover plates. Also check the transmission cooler lines at the
> front that connect to the radiator, those are notorious for leaking, and
> need to be replaced every so often.
>
> BTW does the Overdrive still work? Has the timing chain been replaced?
>
>

The Overdrive still works. Occasionally, it sticks in 3rd and won't
upshift, but most of the time it's fine. I went to Partstrain.com and
figured it was the seal.

Thanks for the pointer on checking the cooler lines. I'll take a look at
it this weekend as I have the time. As for the timing chain, you mean
the one on the engine, correct?

Patrick
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Old 09 Dec 2009, 11:53 pm   #4 (permalink)
Rastamon
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Default Re: Automatic tranny in a '85 Pickup

"Psychiatris" <Psychiatrist@whatswrong.com> wrote in message
news:hfplko$re1$1@aioe.org...
>
> Thanks for the pointer on checking the cooler lines. I'll take a look at
> it this weekend as I have the time. As for the timing chain, you mean the
> one on the engine, correct?
>

Yeah, the timing chain in the engine. As long as the tensioner is still good
and the guides don't fail, it should be ok.


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