The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:

Go Back   The Subaru SVX World Network > SVX Main Forums > Technical Q & A

Reply
 
Thread Tools Display Modes
  #1  
Old 09-19-2003, 08:22 AM
SVX JAZZ's Avatar
SVX JAZZ SVX JAZZ is offline
Tired
 
Join Date: Mar 2001
Location: Winston-Salem, NC
Posts: 202
Backfire

Hi Gang,

Somedays when it's been cool and rainy my car makes a slight backfire sound when I crank it. I also notice the starter spins at a funny rate instead of the normal spinning sound. It doesn't do this all the time but just every once in a while. Does this sound like a loose boot over one of the coils?

P.S. Put a new radiator in this week. The top of the old one broke off when I tried to remove the top hose! I may hook up the tranny cooler lines in parallel since I have the new design tranny cooler with the new radiotor.
__________________
Paul

1992 LSl (Black Mica)
1965 Mustang G.T. Fastback
1990 Mustang G.T. Convertible
1986 1/2 Nissan 4x4
2004 Vovlo XC70 (wife's)

Wonderful Wife
Wonderful Son
2 Cats

Incredibly blessed!
Reply With Quote
  #2  
Old 09-19-2003, 04:11 PM
Trevor's Avatar
Trevor Trevor is offline
Registered User
 
Join Date: Feb 2002
Location: Auckland, New Zealand
Posts: 5,223
Registered SVX
Paul, exactly what do you mean by, Ò starter spins at a funny rate instead of the normal spinning sound Ò.

Is the engine sort of partly starting and and running ahead of the starter but not catching properly ? A backfire usually indicates an ignition timing problem.

Did you have the problem before changing the radiator ? If not it is likely that you have inadvertently disturbed something. Possibly a sensor lead or vacuum hose.
__________________
Trevor, New Zealand.

As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit!
Reply With Quote
  #3  
Old 09-22-2003, 07:33 AM
SVX JAZZ's Avatar
SVX JAZZ SVX JAZZ is offline
Tired
 
Join Date: Mar 2001
Location: Winston-Salem, NC
Posts: 202
Engine trying to catch

Yeah, thats what the starter sounds like. It sounds like the engine is trying to catch. It's kind of a rythmic sound. The backfire sound is like a small "pop". Doesn't happen all the time and only does it on cool misty rainy days. It's been doing this for a while since before I put the radiator in.

New radiator works and looks good. I can tell the car is running slightly cooler.

Thanks,

Paul
Reply With Quote
  #4  
Old 09-22-2003, 06:42 PM
Trevor's Avatar
Trevor Trevor is offline
Registered User
 
Join Date: Feb 2002
Location: Auckland, New Zealand
Posts: 5,223
Registered SVX
Paul the only way I can assist from a VERY great distance is to concentrate on what small clues you have given.

Number one is the fact that the problem occurs when conditions are damp. This could indicate a high tension ( spark ) circuit leak to earth. The big problem is that it is intermittent and will have to be located when it occurs.

If it happens when it is dark, have a look and listen for a spark jumping somewhere and particularly around the spark plug/coil area.

I could list a further dozen possibilities. The worse it gets the easier it will be to diagnose. Not much help I am afraid.
__________________
Trevor, New Zealand.

As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit!
Reply With Quote
  #5  
Old 09-23-2003, 06:10 AM
SVX JAZZ's Avatar
SVX JAZZ SVX JAZZ is offline
Tired
 
Join Date: Mar 2001
Location: Winston-Salem, NC
Posts: 202
Thanks

Thanks. Late Fall early Winter is when I notice it happening more often.

First day of Fall up here... You guys are just heading into the warm season down there huh?

Take care,

Paul
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 07:37 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
© 2001-2015 SVX World Network
(208)-906-1122