Volvo S40 The S40 is Volvo's most affordable sedan with all the amenities of a luxury sports car.

boost pipe

  #1  
Old 10-13-2018, 05:06 PM
David Mullaney's Avatar
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default boost pipe

hi just wondering if anyone could help i have a split in my boost pipe its causing black smoke on acceleration well im 99% sure its that im just wondering could i damage anything by running it untill i get chance to replace it and is it easy to replace.
 
  #2  
Old 10-14-2018, 09:58 AM
Kiss4aFrog's Avatar
Administrator
Join Date: Mar 2010
Location: Cape Coral, FL
Posts: 4,516
Received 11 Likes on 11 Posts
Default

What is likely happening is the engine is measuring the amount of air the engine is sucking in through the MAF sensor and injecting that amount of fuel but due to the split in the pipe you aren't shoving that amount of air in as some is leaking out and so it's running rich. Richer when accelerating as the air would be under more pressure and more air would be leaking out than when just driving at a steady pace down the road.

Best to replace it as soon as possible any you might need to change the plugs too as they are likely getting a build up of soot. At least pull and inspect a couple once you get a new tube to gauge their condition.

.
 
  #3  
Old 10-14-2018, 12:17 PM
David Mullaney's Avatar
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

cheers for the reply do you mean the injector plugs? ive just wrapped a exhaust bandage around it with plenty of ducktape im gonna ordwer the pipe tomorrow.
 
  #4  
Old 10-14-2018, 12:20 PM
Kiss4aFrog's Avatar
Administrator
Join Date: Mar 2010
Location: Cape Coral, FL
Posts: 4,516
Received 11 Likes on 11 Posts
Default

Spark plugs. Try to accelerate as softly as possible. You want to stay away from boost as much as possible as that's what causes it to leak more and also the pressure might be able to overcome the duct tape and blow out.

.
 
  #5  
Old 10-17-2018, 07:12 AM
Hudini's Avatar
Senior Member
Join Date: Oct 2007
Location: Shanghai, China
Posts: 2,840
Likes: 0
Received 16 Likes on 16 Posts
Default

Is this a diesel engine?
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Zakharov
Volvo S60 & V60
2
10-31-2014 11:41 AM
PatchyFog
Volvo 850
11
01-04-2011 03:20 AM
JTapper
Volvo V70
15
03-09-2009 04:14 AM
407flyer
Volvo 240, 740 & 940
1
09-28-2008 11:04 AM
ROKCHEVS850T
Volvo 850
4
01-12-2008 08:41 PM


Thread Tools
Search this Thread
Quick Reply: boost pipe



All times are GMT -5. The time now is 03:19 AM.