- Joined
- Feb 24, 2024
- Messages
- 388
- Reaction score
- 385
- Location
- North Carolina
- Vehicle Year
- 1994
- Make / Model
- Ford Ranger
- Engine Type
- 4.0 V6
- Transmission
- Automatic
- 2WD / 4WD
- 4WD
Afternoon! I've already read the tips here: https://www.therangerstation.com/forums/index.php?threads/before-performing-any-diagnostic-procedures-on-your-engine.82170/
-I replaced my fuel filter less than 1k miles ago
-same with spark plugs
-tested resistance on each plug wire (they were replaced ~2k miles ago) and they test in range
-tested secondary resistance on the coil pack, resistance was 10.55k, 10.95k and 10.59k (a little low, but probably fine??)
-confirmed nothing is living/clogging up air intake
I get an all clear from the KOEO test with a cheapo ODB1 reader.
I have a rough idle, shakes the truck. rpms seem steady at ~750.
I don't know the history of the truck. I've been doing a lot of neglected maintenance, pretty sure the odometer has rolled over twice and I'm in the low 200k range.
I have not done a compression test. I have not checked individual plugs for spark.
I was looking at picking up some reman fuel injectors but would appreciate some feedback on improving my diagnostic skills as my 'parts cannon' approach hasn't fixed it yet.
94 xlt 4wd
-I replaced my fuel filter less than 1k miles ago
-same with spark plugs
-tested resistance on each plug wire (they were replaced ~2k miles ago) and they test in range
-tested secondary resistance on the coil pack, resistance was 10.55k, 10.95k and 10.59k (a little low, but probably fine??)
-confirmed nothing is living/clogging up air intake
I get an all clear from the KOEO test with a cheapo ODB1 reader.
I have a rough idle, shakes the truck. rpms seem steady at ~750.
I don't know the history of the truck. I've been doing a lot of neglected maintenance, pretty sure the odometer has rolled over twice and I'm in the low 200k range.
I have not done a compression test. I have not checked individual plugs for spark.
I was looking at picking up some reman fuel injectors but would appreciate some feedback on improving my diagnostic skills as my 'parts cannon' approach hasn't fixed it yet.
94 xlt 4wd