• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

2.3L ('83-'97) Back fire


ThatOneGuy

Active Member
Joined
Jul 23, 2017
Messages
110
Reaction score
73
Points
28
Location
South sound
Vehicle Year
1983198519
Make / Model
FordFordFor
Transmission
Manual
When I turn my truck off it will back fire once, at the catalytic converter. Do I just need to adjust fule at the carberator
 


Rock Auto 5% Discount Code: 7FA902352B4C01: April 5th, 2021

RonD

Well-Known Member
Joined
Jun 2, 2012
Messages
17,637
Reaction score
2,619
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
I assume it only does it when engine is fully warmed up?

Yes, you could try adjusting the idler jets and re-timing spark
Has the MPG dropped lately?

Backfire(afterfire) when shutting off engine usually means it was running Rich and unburned fuel is igniting in the HOT exhaust
As a test, let engine idle for 30seconds before shutting it off and see if it afterfires, this gives the engine and exhaust a bit of time to cool off if either was over heated
 


Top