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Carburetor backfiring/stalling

EVOrider

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Joined
Sep 8, 2008
Messages
25
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1
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3
Vehicle Year
1983
Make / Model
Ford
Transmission
Manual
Picked up a 1984 Ranger with the 2.8l. Really in good shape....except the running condition. In fact, its all factory original.

It starts up fine....just like my 1983 which runs good. However, once it warms up....the idle gets slower and slower till it dies. Then, have to gently press the gas pedal to start it again. Sometimes, it will shoot a flame out the carburetor.

I’ve swapped carburetors from 1983 to the 1984....same symptoms and problem persists.

I’m getting codes 41 System lean and 13 Idle RPM high.

I’m stumped.....swapping carburetors didn’t help. What’s to do next? Thanks
 


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ford4wd08

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Nov 12, 2018
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Location
Alcoa, TN
Engine Type
2.8 V6
Transmission
Automatic
2WD / 4WD
4WD
Have you confirmed the timing?

If timing is right, I don't think a carb will generally back fire (I could be wrong though).
 

19Walt93

Well-Known Member
Ford Technician
V8 Engine Swap
Joined
Nov 13, 2018
Messages
3,222
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Location
Canaan,NH
Vehicle Year
1993
Make / Model
Ford Ranger
Engine Type
V8
Engine Size
351
Transmission
Automatic
2WD / 4WD
2WD
Total Drop
3"
Tire Size
235/55R16
My credo
If you don't have time to do it right will you have time to do it over?
Lean backfires through the intake, rich backfires through the exhaust. I'd look for vacuum leaks before doing anything expensive.
 

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