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Old 03-22-2016, 11:26 AM
xBillyz xBillyz is offline
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Join Date: Sep 2015
Posts: 3
Default 1986 2.3 Ranger misfiring issues

My 2.3l Ranger has been going through a lot of ignition issues.
The truck starts just fine & idols correctly. After 30~ seconds it will stall out, in park.
When driving it just spits, sputters, and backfires as I try to accelerate. I have to go about 75 percent throttle to get anywhere. In the higher rpm's it accelerates just fine and feels 100%. Even when I let off the gas and coast when going anywhere from 35-60 you can still feel it not running smoothly.

I've gone through 5 TFI (thick film ignition) modules, the one's mounted on the distributor. So that has me thinking its ignition based problem.
Parts I've replaced in the past month:
TFI Module
Plugs & wires
Distributor Cap
Distributor Rotor
Ignition Coil

I have no clue what could be causing the TFI modules to go bad. I haven't touched any wiring to the vehicle so I don't think a short could be causing it. I haven't checked fuel pressure yet as I have no reason to think fuel it is the problem (Both fuel pumps, fuel pressure regulator, and filter were replaced a year ago. Roughly 10,000 miles on them)

Any other thoughts, troubleshooting would be greatly appreciated!
Thank you
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Old 03-22-2016, 04:38 PM
TxGasRacer TxGasRacer is offline
Ford Tough
Join Date: Aug 2012
Posts: 236
Default Re: 1986 2.3 Ranger misfiring issues
1998 Ranger XLT Super Cab 4.0 ohv v6 - 5r55E automatic Trans - 8.8 with 3.55gears - Toreador Red Clear Coat Metallic -Explorer Sport Trac White Faced Gage Cluster -2006 Mirror Swap-16" Mustang wheels with 215-65-16" Falken Tires
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