backfire

mach4 · 02-15-2001, 01:00 PM

i have this problem when i first start my stang up it backfires through the driverside tail pipe for about a min and then goes away what would cause this?

Green92LX · 02-15-2001, 01:10 PM

Broken stuff....

Just kidding...I just saw that it was your first post and couldn't resist. When you say backfire, do you mean like boom bang kind of $hit or a skip?

------------------
1992 5.0 LX, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, 93 Cobra Spoiler

Daily driver: 89 Coupe with 205K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps, cut and welded stock shifter...and it runs like a champ.

Unit 5302 · 02-15-2001, 01:34 PM

More than likely, I'd say your injectors are a little clogged or weak.

When you first fire the car up and it's cold the A/F mixture needs to be richer. If the injectors are running under a full load (especially low rpm's), usually they are just barely adaquate.

Like mine!

You could try to clean them, how many miles are on your car?

02-15-2001, 01:00 PM	#1
mach4 Registered Member Join Date: Feb 2001 Location: Marysville MI us Posts: 1	backfire i have this problem when i first start my stang up it backfires through the driverside tail pipe for about a min and then goes away what would cause this?

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02-15-2001, 01:10 PM	#2
Green92LX Registered Member Join Date: Jun 1999 Location: North Haven,CT Posts: 336	Broken stuff.... Just kidding...I just saw that it was your first post and couldn't resist. When you say backfire, do you mean like boom bang kind of $hit or a skip? ------------------ 1992 5.0 LX, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,BBK equal length shorties,offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, 93 Cobra Spoiler Daily driver: 89 Coupe with 205K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps, cut and welded stock shifter...and it runs like a champ.

02-15-2001, 01:34 PM	#3
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	More than likely, I'd say your injectors are a little clogged or weak. When you first fire the car up and it's cold the A/F mixture needs to be richer. If the injectors are running under a full load (especially low rpm's), usually they are just barely adaquate. Like mine! You could try to clean them, how many miles are on your car?