Jethro_54
New Member
- Joined
- Mar 27, 2014
- Messages
- 13
- Reaction score
- 0
- Points
- 0
- Location
- Clarksville, IOWA
- Vehicle Year
- 99
- Make / Model
- Ranger
- Engine Size
- 4.0L
- Transmission
- Automatic
New member to this site but I've been using it since I was 15. Finally got smart and became a member...11 Rangers later.
I just picked up a 99 Ranger XLT 2.5L auto 2wd with 158k miles. Bought it running REALLY ROUGH and drove it over an hour back home. Seems like it's running on 2 cyl's. Can't believe there's no codes. The catalytic converter has a hole torched in it from previous owner thinking it could be plugged. Brake pedal extremely stiff (possibly faulty brake booster or vacuum issue).
So far:
-po installed new coil packs
-po torched hole in upstream end of catalytic converter
-po removed DLC fuse #5 (assuming fuse for CEL) maybe trying to hide something...
-po installed new IAC valve
-I checked for correct plug wire routing
-installed DLC fuse #5 drove for 15 min still no CEL?!
-hooked scan tool up just to verify
-new air filter (was not one in it)
-unplugged MAF while running and engine stopped instantly
I will check for vacuum leaks here in a bit. Do I need to let the truck run longer than 15 min for a CEL to appear? Will the 2.5L run fine without a catalytic converter? Thinking about installing a pipe in its place temporarily unless these motors are picky with the catalytic converter. If it is I'll order a new one off rockauto which is like $156. I wouldn't assume it's a compression problem with only 158k but I can do a test.
Any input would be greatly appreciated!!!
I just picked up a 99 Ranger XLT 2.5L auto 2wd with 158k miles. Bought it running REALLY ROUGH and drove it over an hour back home. Seems like it's running on 2 cyl's. Can't believe there's no codes. The catalytic converter has a hole torched in it from previous owner thinking it could be plugged. Brake pedal extremely stiff (possibly faulty brake booster or vacuum issue).
So far:
-po installed new coil packs
-po torched hole in upstream end of catalytic converter
-po removed DLC fuse #5 (assuming fuse for CEL) maybe trying to hide something...
-po installed new IAC valve
-I checked for correct plug wire routing
-installed DLC fuse #5 drove for 15 min still no CEL?!
-hooked scan tool up just to verify
-new air filter (was not one in it)
-unplugged MAF while running and engine stopped instantly
I will check for vacuum leaks here in a bit. Do I need to let the truck run longer than 15 min for a CEL to appear? Will the 2.5L run fine without a catalytic converter? Thinking about installing a pipe in its place temporarily unless these motors are picky with the catalytic converter. If it is I'll order a new one off rockauto which is like $156. I wouldn't assume it's a compression problem with only 158k but I can do a test.
Any input would be greatly appreciated!!!