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My s40 is to slow

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

Abjmlo89
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Year and Model: S40 2002
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Abjmlo89

My s40 is to slow

Post by Abjmlo89 » Tue Aug 28, 2018 4:26 pm

Have a nice day all members
First of all sorry for my bad english because it's not my native language
I bought a 2002 s40 from 8 month's and on the highway it go fast and kind of smooth but I can't go more than 140km/h
And when I try to go to Mountain Road it just be too slow and I have to use first gear on the manual so I can keep moving and if I lift it on the second one it just start to slowing down and the rpm go under 1000 rpm and it goes like it will shutdown please help me with this problem.. We don't have a volvo dealer here in syria



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matthew1
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matthew1

Re: My s40 is to slow

Post by matthew1 » Tue Aug 28, 2018 4:29 pm

Hello from the United States. You should do a Stage 0 to the S40.

Post back to this topic if you have questions about those steps.


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Abjmlo89
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Abjmlo89

Re: My s40 is to slow

Post by Abjmlo89 » Tue Aug 28, 2018 4:40 pm

Thank you for your replay I do all of that without the vaccum lines and software update today I noticed one of the vaccum lins is missing but I don't where it goes .. It is the one to the left of the throttle gate



difflock54
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Year and Model: V40 Nordic 2002
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difflock54

Re: My s40 is to slow

Post by difflock54 » Tue Aug 28, 2018 6:40 pm

Assuming it has an automatic transmission ?? Maybe it is stuck in winter mode.
The W button beside the gear shifter turns that mode on or off.
When on there is an up pointing arrow appears on the dash also.



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alschnertz
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alschnertz

Re: My s40 is to slow

Post by alschnertz » Wed Aug 29, 2018 12:44 am

Clogged catalytic converter?


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

Abjmlo89
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Year and Model: S40 2002
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Abjmlo89

Re: My s40 is to slow

Post by Abjmlo89 » Wed Aug 29, 2018 3:37 am

difflock54 wrote:
Tue Aug 28, 2018 6:40 pm
Assuming it has an automatic transmission ?? Maybe it is stuck in winter mode.
The W button beside the gear shifter turns that mode on or off.
When on there is an up pointing arrow appears on the dash also.
Thank you for your replay
Sorry dude it have a manual transmission



Abjmlo89
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Abjmlo89

Re: My s40 is to slow

Post by Abjmlo89 » Wed Aug 29, 2018 3:39 am

alschnertz wrote:
Wed Aug 29, 2018 12:44 am
Clogged catalytic converter?
Sorry my dear I have just cleaned it last week but I have unplugged the sensor that came on it does it matter ?



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Rattnalle
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Rattnalle

Re: My s40 is to slow

Post by Rattnalle » Wed Aug 29, 2018 3:41 am

A missing vacuum line could easily make the car run very poorly. I'd try confirming that it's actually missing and figure out where it's supposed to go as a first step.

Unplugging the O2 sensors by the catalytic converter would also make the car run poorly.



Abjmlo89
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Abjmlo89

Re: My s40 is to slow

Post by Abjmlo89 » Wed Aug 29, 2018 3:46 am

Rattnalle wrote:
Wed Aug 29, 2018 3:41 am
A missing vacuum line could easily make the car run very poorly. I'd try confirming that it's actually missing and figure out where it's supposed to go as a first step.

Unplugging the O2 sensors by the catalytic converter would also make the car run poorly.
Thank you for your fast replay sir
1-Where I can find the vaccum line diagram for this model
2-and can I use normal rubber hose for it



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alschnertz
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alschnertz

Re: My s40 is to slow

Post by alschnertz » Wed Aug 29, 2018 3:48 pm

On North American delivered models, the vacuum routing diagram is on a sticker on the underside of the hood.

On North American delivered models, you should have the O2 sensors plugged in.
They do affect how the engine runs.


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

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