JR307
New Member
- Joined
- Aug 1, 2020
- Messages
- 2
- Reaction score
- 0
- Points
- 1
- Location
- Wyoming
- Vehicle Year
- 1993
- Make / Model
- Ford Ranger
- Transmission
- Manual
1993 2wd Manual 2.3L
248k miles; it had 109K when I got it
Over the last couple of years performance has diminished where going up grades or wind would force downshifting into 3rd and 45mph. Fuel economy tanked (15ish mpg) and oil consumption increased (~ qt/500-1000 miles) but none visible on the ground.
About a month ago performance further reduced to where i am not able to get up to 55 nor go up any grades without shifting down to 2nd or 1st and crawling.
I took it to my usual mechanic and he said engine compression was fine. I didn’t ask for particulars. He changed the Fuel filter, cleaned the MAF and advised the catalytic converter was bad and that I should replace it with a straight pipe. I ordered a direct fit replacement catalytic converter and installed it. Runs worse, so I start reading forums and start replacing parts, most of which are original.
List of parts replaced:
Catalytic converter
All 8 spark plugs (passenger side plugs very fouled and worn. Driver’s side worn but clean, no residue)
All 8 plug wires.
Both ignition coils
At this point I go for a drive, slight improvements, but check engine light still came on as well as acceleration and power issues remain.
New IAC
New PCV
New ECM
Problems persist, Check engine light still on.
New O2 Sensor upstream above new catalytic converter.
Since the new O2 sensor, idles fine and no check engine light after several different drives puttering around town. Power and acceleration issue still present. Feels like it wants to go, but just can’t quite. Like it is constipated (sorry for crude comparison).
What additional information would be helpful?
I am now considering that perhaps timing is off? Timing belt last changed at 181K (now at 248k).
Or EGR / DPFE issues? Is there another O2 sensor? Could it be the alternator?
Thank you for any input, the Dove and I appreciate it! We have coozed a lot of miles together. Now she is the crippled coozer
JR
248k miles; it had 109K when I got it
Over the last couple of years performance has diminished where going up grades or wind would force downshifting into 3rd and 45mph. Fuel economy tanked (15ish mpg) and oil consumption increased (~ qt/500-1000 miles) but none visible on the ground.
About a month ago performance further reduced to where i am not able to get up to 55 nor go up any grades without shifting down to 2nd or 1st and crawling.
I took it to my usual mechanic and he said engine compression was fine. I didn’t ask for particulars. He changed the Fuel filter, cleaned the MAF and advised the catalytic converter was bad and that I should replace it with a straight pipe. I ordered a direct fit replacement catalytic converter and installed it. Runs worse, so I start reading forums and start replacing parts, most of which are original.
List of parts replaced:
Catalytic converter
All 8 spark plugs (passenger side plugs very fouled and worn. Driver’s side worn but clean, no residue)
All 8 plug wires.
Both ignition coils
At this point I go for a drive, slight improvements, but check engine light still came on as well as acceleration and power issues remain.
New IAC
New PCV
New ECM
Problems persist, Check engine light still on.
New O2 Sensor upstream above new catalytic converter.
Since the new O2 sensor, idles fine and no check engine light after several different drives puttering around town. Power and acceleration issue still present. Feels like it wants to go, but just can’t quite. Like it is constipated (sorry for crude comparison).
What additional information would be helpful?
I am now considering that perhaps timing is off? Timing belt last changed at 181K (now at 248k).
Or EGR / DPFE issues? Is there another O2 sensor? Could it be the alternator?
Thank you for any input, the Dove and I appreciate it! We have coozed a lot of miles together. Now she is the crippled coozer
JR