1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

anybody get a backfire when engine is cold?

Old 10-18-2003, 11:25 PM
  #1  
Junior Member
Thread Starter
 
johnchle's Avatar
 
Join Date: Oct 2003
Location: MA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
johnchle is on a distinguished road
Default anybody get a backfire when engine is cold?

When the engine is cold, and you hold above 2000rpm, and let go, there is a backfire/banging noise from the drivers side rear. Not just once, but one after another until it comes down to idle. After it warms up, it seems ok. The car is a 95SSEi, stock, no mods. It almost sounds like excess gas firing on an exhaust stroke.(coils fire both cylinders at the same time) I just tuned it, but still there. Any body have, or have heard this thing?
Old 10-19-2003, 02:06 PM
  #2  
Senior Member
Posts like a Corvette
 
h1081dan's Avatar
 
Join Date: Aug 2003
Location: Elizabethtown Pennsylvania
Posts: 1,205
Likes: 0
Received 0 Likes on 0 Posts
h1081dan is on a distinguished road
Default

Nope, I never had that problem, thats strange. Mine is quiet when cold. The only noise it make is when I rev it up a big I have the normal exhaust crackle. MMMM Maybe an Ignition problem. My van sort of backfired when my Bosch plugs went bad (after only 6 freaking months, damn BOSCH).
Old 10-19-2003, 02:25 PM
  #3  
Senior Member
True Car Nut
 
OLBlueEyesBonne's Avatar
 
Join Date: Dec 2002
Location: Sauk Centre, MN
Posts: 5,459
Likes: 0
Received 0 Likes on 0 Posts
OLBlueEyesBonne is on a distinguished road
Default

I get a light backfire sometimes in my 1994 SLE when cold.
When I hit the key to start it it cranks and cranks (2-3 seconds) and I let up, and when I do that I get a light backfire. THen I hit the key again and the engine will fire up instantly.
I've got a new battery and a freshly rebuilt 140 amp alternator. I'm guessing next in line would be a fuel pressure regulator or maybe an injector (or 2 or 3 -in which I case I'd just buy a full new set of Accell 24 lb injectors).
Stylez
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
blue_bonn_evil
1992-1999
11
05-29-2011 03:55 PM
dd4d4c3
1987-1991
3
07-20-2006 01:19 PM
CSFiend
1992-1999
0
01-28-2005 03:52 PM
xkeithx
1992-1999
19
01-23-2005 11:17 AM
BusMaster007
1992-1999
8
01-19-2004 02:08 PM


Thread Tools
Search this Thread
Quick Reply: anybody get a backfire when engine is cold?



All times are GMT -4. The time now is 05:43 PM.