91 fullsize blazer backfiring problem

Closed Thread Subscribe

Thread Tools

Search this Thread

11-07-2010, 12:16 PM

scrmmealuvsong22

Beginning Member

Thread Starter

Join Date: Jan 2009

Posts: 46

scrmmealuvsong22 is an unknown quantity at this point

91 fullsize blazer backfiring problem

My 91 fullsize blazer just got new head gaskets but when started up it backfires like pop corn popping after a few minutes it will stop and truck runs fine any idea why it's popping

11-07-2010, 01:32 PM

swartlkk

Administrator

Join Date: May 2005

Location: Waterloo, NY

Posts: 41,137

It sounds like your timing may be too far advanced for cold start up. What was the timing set to after the head gasket replacement?

11-08-2010, 08:02 AM

scrmmealuvsong22

Beginning Member

Thread Starter

Join Date: Jan 2009

Posts: 46

I was not the one who set timing on the truck so I couldn't tell u off hand but all specifications came from
my haynes Manuel for that truck

Closed Thread Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

94 blazer stalling, hesitating, backfiring, and cutting off

gmoney30

Full Size K5 (1969-1991) GMT415 (1992-1994) Tech

10-25-2010 07:42 PM

Hard start, stumble, and backfiring

Iceman_19

2nd Generation S-series (1995-2005) Tech

08-26-2009 03:14 PM

rough idle/backfiring HELP!!!!!!!!!!!!!!!

chris12001

Full Size K5 (1969-1991) GMT415 (1992-1994) Tech

02-12-2009 11:44 PM

2000 Backfiring thru intake

johncagain

Engine & Transmission

05-11-2008 08:30 PM

Heavy on fuel and backfiring

infamous

2nd Generation S-series (1995-2005) Tech

01-07-2007 04:18 AM