Limp mode / power drop off.

stinkyvolvo · Apr 11th, 2021, 11:38

My 2003 S60 D5 keeps going into some sort of limp-mode. 6 times yesterday, when pulling away from a junction or on first starting. It starts up again and then drives fine until the next set of lights or junction, then goes into limp mode again and the power is just not there. I read somewhere it could be a faulty O2 sensor. Anyone got any ideas about the cause of repeated power loss like this?

Darlo 1 · Apr 11th, 2021, 12:43

You need to get the car read to see if any fault codes are stored,then you can then do a proper fault find instead of trying to guess whats wrong.

wynnj · Apr 12th, 2021, 12:02

You should also check your fuses behind the panel on driver's side. There's one that feeds the accelerator pedal and if that blows you'll get the symptoms you describe. Can't remember which number it is.

davebb · Apr 12th, 2021, 17:19

Quote:

Originally Posted by stinkyvolvo

My 2003 S60 D5 keeps going into some sort of limp-mode. 6 times yesterday, when pulling away from a junction or on first starting. It starts up again and then drives fine until the next set of lights or junction, then goes into limp mode again and the power is just not there. I read somewhere it could be a faulty O2 sensor. Anyone got any ideas about the cause of repeated power loss like this?

Hi i do not think your 03 D5 has a O2 Sensor
Yes read the codes, it maybe over boosting, or a boost leak ,
if it is over boosting it maybe your vnt turbo needs cleaning.
Dave

myfirstv70 · Apr 13th, 2021, 07:47

I had similar problem but my 2003 D5 would hit limp mode when going up a long drag on our ring road....I believe it was the turbo vanes were getting sticky with soot as I drive pretty sedately (most of the time) and I cured it by slowly building up the speed on the flat and followed that with an Italian tune-up ie gave it some hammer - hey presto! problem gone away.....might be worth a go? I did read the code but it was so generic as to be not terribly useful ie widget 'X' is out of position/ range......
HTH,
Nobby

Tonypilk · Apr 15th, 2021, 19:06

Before spending a fortune, check the air filter. I had similar problems and the filter was clogged up with dust. Now runs without a hitch (or hiccup)

northernblue · Apr 15th, 2021, 21:07

Take the oil filler cap off with the engine running, if it sounds like a tug boat you have a vacuum leak.

Its free and the easiest place to start .

Apr 11th, 2021, 11:38	#1
stinkyvolvo New Member Last Online: Apr 11th, 2021 11:39 Join Date: Feb 2016 Location: Ulverston	Limp mode / power drop off. My 2003 S60 D5 keeps going into some sort of limp-mode. 6 times yesterday, when pulling away from a junction or on first starting. It starts up again and then drives fine until the next set of lights or junction, then goes into limp mode again and the power is just not there. I read somewhere it could be a faulty O2 sensor. Anyone got any ideas about the cause of repeated power loss like this?

Apr 11th, 2021, 12:43	#2
Darlo 1 Lunatic. Last Online: Today 12:19 Join Date: Dec 2006 Location: staffordshire	You need to get the car read to see if any fault codes are stored,then you can then do a proper fault find instead of trying to guess whats wrong. __________________ V40 1.9D 2004 620 miles to the tankful. 235000 miles on clock. Now sold, S60 D5 2004. I vape therefore I am.

Apr 13th, 2021, 07:47	#5
myfirstv70 Senior Member Last Online: Today 08:24 Join Date: Dec 2008 Location: Lincoln	Italian tune-up? I had similar problem but my 2003 D5 would hit limp mode when going up a long drag on our ring road....I believe it was the turbo vanes were getting sticky with soot as I drive pretty sedately (most of the time) and I cured it by slowly building up the speed on the flat and followed that with an Italian tune-up ie gave it some hammer - hey presto! problem gone away.....might be worth a go? I did read the code but it was so generic as to be not terribly useful ie widget 'X' is out of position/ range...... HTH, Nobby

Apr 15th, 2021, 21:07	#7
northernblue Junior Member Last Online: Jun 21st, 2023 17:45 Join Date: Dec 2011 Location: northwich	Take the oil filler cap off with the engine running, if it sounds like a tug boat you have a vacuum leak. Its free and the easiest place to start . __________________ 2003 Volvo v70 d5 manual

Apr 12th, 2021, 12:02	#3
wynnj Master Member Last Online: Today 09:34 Join Date: Nov 2004 Location: Sandhurst	You should also check your fuses behind the panel on driver's side. There's one that feeds the accelerator pedal and if that blows you'll get the symptoms you describe. Can't remember which number it is.

Apr 15th, 2021, 19:06	#6
Tonypilk New Member Last Online: Apr 17th, 2021 14:47 Join Date: Apr 2019 Location: St Leonards on Sea	Before spending a fortune, check the air filter. I had similar problems and the filter was clogged up with dust. Now runs without a hitch (or hiccup)

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