tiptronic issue

[Fulvio Marco]

Hi!i drive boxster 986 1998 2.5 tiptronic.. (tiptronic atf and filter changed 1 year ago). now i have a strange problem only when car engine is in temperature. D or P flash with 4th gear..

i can't feel any difference in normal driving.. automatic and semiautomatic works perfectly and from 1 to 5th gear are ok. A generic dealer attached diagnosis and there's a code

in tiptronic that is like "cooler intercepting valve" (i'm translating from italian!)

What do you think??

[JFP in PA]

1 hour ago, Fulvio Marco said:

Hi!i drive boxster 986 1998 2.5 tiptronic.. (tiptronic atf and filter changed 1 year ago). now i have a strange problem only when car engine is in temperature. D or P flash with 4th gear..

i can't feel any difference in normal driving.. automatic and semiautomatic works perfectly and from 1 to 5th gear are ok. A generic dealer attached diagnosis and there's a code

in tiptronic that is like "cooler intercepting valve" (i'm translating from italian!)

What do you think??

 

Welcome to RennTech

The Tiptronic transmission has a cooling system control valve outside the transmission that can cause this behavior.  While it is a bit of a pain to get to, it can be changed to correct the issue.

[Fulvio Marco]

Okay!

Which is the parte Number?

do you have a diagram?only to understand the location of this valve..

Thank you:-)

PS is It possibile the valves are two?

Edited June 26, 2018 by Fulvio Marco

[Loren]

A lot more than two valves. You will need a tester to locate the bad solenoid/valve.

 

[Fulvio Marco]

Oh my god!is it inside the transmission?

I think it's outside..

Can you clarify me?

[Loren]

My bad - perhaps item 23 or item 12.

 

[Fulvio Marco]

5 hours ago, Fulvio Marco said:

Ok top!thank you.. how many hours to reach that Place , change the 2 valves and finish the job?

 

[JFP in PA]

4 minutes ago, Fulvio Marco said:

 

 

An experienced shop could do both in a couple hours on a lift.

[Fulvio Marco]

Ok thank you.. is It possible to do this job without lift?do you have the procedure?

[JFP in PA]

5 hours ago, Fulvio Marco said:

Ok thank you.. is It possible to do this job without lift?do you have the procedure?

 

It can be done on the ground, but it is a pain as the transmission needs to be lowered to get at the valves.

[Fulvio Marco]

One more question.. valve n. 23.. is It accessibile from the engine?

[JFP in PA]

9 hours ago, Fulvio Marco said:

One more question.. valve n. 23.. is It accessibile from the engine?

 

 

Only if you have really small hands and long arms; this is why the transmission needs to be lowered slightly...…………..

[Fulvio Marco]

Is this the location of One of the 2 valves?picture n. 4

7pp906270 .. engine compartement?

[JFP in PA]

18 minutes ago, Fulvio Marco said:

Is this the location of One of the 2 valves?picture n. 4

7pp906270 .. engine compartement?

 

No, that is the electronic change over valve for the SAI system, not the Tiptronic trans.

[JFP in PA]

The valve you are looking for looks like this and is down alongside the gear box:

 

[JFP in PA]

[Fulvio Marco]

Ok.. i'm so sad.. my mechanic changed the 2 valves but the error come up again!!?

 

Edited July 3, 2018 by Fulvio Marco

[Loren]

I think you need to run a Porsche specific diagnostic tool on the car. You might have a different fault the generic scanner is not picking up.