I have a '02 S40 1.9T with 5 spd auto with ~65K miles. I had the TCM / software update done that was realeased in Jan 2005 and made a big difference. It initially took care of the shift "Flare" and abruptness. However, now something seems not right now.
Not sure if this is a transmission problem or what. Recently the drive train seems like there is a lot of slop. My first thought was motor mounts but I think they look ok. When I accelerate it feels like there is a delay (kinda like excesive gear lash) and abruptly starts to go. The kick down seems to have excessive delay then is very abrupt and seems to happen a little too easily. Sometime the engine revs high between up-shifts. Other times seems sluggish shifting. The tranny brain seems to have gone schizo on me.
Any ideas?
Stan
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'02 S40 Transmission Problem?
Started by sks40, Oct 14 2006 03:40 AM
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2 replies to this topic
#1
sks40
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Posted 14 October 2006 - 03:40 AM
2005 V50 T5
2002 S40 1.9T - R.I.P.
1998 70 NA - Sold
2002 S40 1.9T - R.I.P.
1998 70 NA - Sold
#2
loseR99
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Posted 17 October 2006 - 12:13 AM
sounds to me like your pnp switch (neutral safety switch) is going bad. I had similar symptoms before mine finally set off a check engine light and a blinking arrow. Replaced it last week and the car drives like new again.
1999 V70R AWD FWD - Laser Blue - IPD polys, SharpHIDs, Eggcrate, TKI Endlinks, Marshall Instruments LED boost gauge, SNABB Pipe, Stylin Intercooler Hoses
2001 Volvo S40 1.9T - heavily modded 250hp 300ftlb - SOLD and missed often.
#3
sks40
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Posted 17 October 2006 - 02:24 AM
QUOTE(1clean01 @ Oct 16 2006, 08:13 PM) 
sounds to me like your pnp switch (neutral safety switch) is going bad. I had similar symptoms before mine finally set off a check engine light and a blinking arrow. Replaced it last week and the car drives like new again.
All that from a PNP switch? I never would have guessed that one. Guess I don't understand how it factors into the control loop. How do you check it?
Stan
2005 V50 T5
2002 S40 1.9T - R.I.P.
1998 70 NA - Sold
2002 S40 1.9T - R.I.P.
1998 70 NA - Sold
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