Engine: S60: - hole in back box loss of power and judder

wtrfll2003 · Apr 10th, 2012, 11:21

Hi, I have a hole in my back box (no jokes please!), it was small and is now the size of a 2p coin. Since it has increased in size the car now judders when accelerating and a very noticable loss of power, with the engine management light flashing periodically.
Would a hole in the back box of the exhaust cause this or is it just a coincidence?

Thanks,
Andy

RAN60 · Apr 10th, 2012, 11:23

Id be inclined to say that was just a coincidence as about 10cm or less further down the back box from the little hole is a bigger hole the size of a tennis ball lol!

On a serious note though id probably start by bandaging that hole (if possible) and take it from there.

Rich

wtrfll2003 · Apr 10th, 2012, 11:43

I have put a small metal plate over it and covered with chemical metal but will need to go over it one more time and see what happens then. I know you can get back pressure problems but always thought that would be by the cat, then again the back box is a weird square shape so who knows if it is creating bad readings in the sensors.
We shall see!

wtrfll2003 · Apr 10th, 2012, 11:58

Thanks Rich,
I have put a small metal plate over it and covered with chemical metal but will need to go over it one more time and see what happens then. I know you can get back pressure problems but always thought that would be by the cat, then again the back box is a weird square shape so who knows if it is creating bad readings in the sensors.
We shall see!

Georgeandkira · Apr 10th, 2012, 13:19

Hello, 2001 S60-how many miles? I've yet to see a hole in an exhaust part be it clean edged or rusty. Spreading zones of rust along seams and peeling are what we get here. See if there are any codes stored. Inspect your underhood vacuum lines for condition and connection. Intake and boost air plumbing are now "senior citizens". Kira

wtrfll2003 · Apr 10th, 2012, 16:30

Hi, I have jacked the car up, took the wheel off and it is most definately a 2 pence size hole with exhaust gas streaming out of it. Car is 196,000, all done by me. If I can seal up the hole just to see if this is the cause of the judder and loss of power. Then great, if not at least I can look to see if it is any other issue.

Apr 10th, 2012, 11:21	#1
wtrfll2003 New Member Last Online: Dec 11th, 2012 09:53 Join Date: Jun 2007 Location: Dyserth	hole in back box loss of power and judder Hi, I have a hole in my back box (no jokes please!), it was small and is now the size of a 2p coin. Since it has increased in size the car now judders when accelerating and a very noticable loss of power, with the engine management light flashing periodically. Would a hole in the back box of the exhaust cause this or is it just a coincidence? Thanks, Andy

Apr 10th, 2012, 13:19	#5
Georgeandkira Premier Member Last Online: Today 18:41 Join Date: Feb 2009 Location: Hackensack	Guess Hello, 2001 S60-how many miles? I've yet to see a hole in an exhaust part be it clean edged or rusty. Spreading zones of rust along seams and peeling are what we get here. See if there are any codes stored. Inspect your underhood vacuum lines for condition and connection. Intake and boost air plumbing are now "senior citizens". Kira

Apr 10th, 2012, 11:23	#2
RAN60 Master Member Last Online: Jun 12th, 2024 15:00 Join Date: Jul 2009 Location: Wales	Id be inclined to say that was just a coincidence as about 10cm or less further down the back box from the little hole is a bigger hole the size of a tennis ball lol! On a serious note though id probably start by bandaging that hole (if possible) and take it from there. Rich

Apr 10th, 2012, 11:43	#3
wtrfll2003 New Member Last Online: Dec 11th, 2012 09:53 Join Date: Jun 2007 Location: Dyserth	I have put a small metal plate over it and covered with chemical metal but will need to go over it one more time and see what happens then. I know you can get back pressure problems but always thought that would be by the cat, then again the back box is a weird square shape so who knows if it is creating bad readings in the sensors. We shall see!

Apr 10th, 2012, 11:58	#4
wtrfll2003 New Member Last Online: Dec 11th, 2012 09:53 Join Date: Jun 2007 Location: Dyserth	Thanks Rich, I have put a small metal plate over it and covered with chemical metal but will need to go over it one more time and see what happens then. I know you can get back pressure problems but always thought that would be by the cat, then again the back box is a weird square shape so who knows if it is creating bad readings in the sensors. We shall see!

Apr 10th, 2012, 16:30	#6
wtrfll2003 New Member Last Online: Dec 11th, 2012 09:53 Join Date: Jun 2007 Location: Dyserth	Hi, I have jacked the car up, took the wheel off and it is most definately a 2 pence size hole with exhaust gas streaming out of it. Car is 196,000, all done by me. If I can seal up the hole just to see if this is the cause of the judder and loss of power. Then great, if not at least I can look to see if it is any other issue.

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