choatecostoms
New Member
- Joined
- Sep 2, 2018
- Messages
- 14
- Reaction score
- 0
- Points
- 1
- Location
- montrose, mn
- Vehicle Year
- 1993
- Make / Model
- ranger
- Engine Size
- 3.0
- Transmission
- Automatic
hey everybody,
first time poster long time reader.
honestly i've got a bit of a thick head and like to figure things out for my self but i am literally at my wits end with my truck.
little back story "long made short" bought my 1993 ranger 3.0 last year with engine issues. turns out the guy had replaced the short block not even 2000mi before and whoever did it did a real crummy job, i mean missing bolts, things were loose all around hack job.
anyway, i pulled the motor and went through the whole thing "not my first rodeo" bottom end, indeed checked out to be a replacement short block as there was still cross hatch in the cylinders and no lip. made sure the block and heads were true and re-lapped the valves, verified cam timing, verified everything was at spec torque in the lower end and re-assembled the motor.
after that the truck ran like a top! i put over 500 mi on the truck with absolutely no issues, until i parked it for about 3 weeks.
upon starting it after its short slumber i noticed a slight rattle coming from the motor but continued with my drive, about half way to work the rattle got extremely loud then silent and continued to be intermittent and not RPM dependent the rest of the way to work.
after work i headed to pick up a four wheeler, got there hooked up the trailer and loaded the wheeler up. not 2 miles down the road i literally lost all power the truck would not get out of its own way "no CEL" i limped it home.
since then there has not been a cel so i have been blindly testing, well everything.
since owning the truck i have replace;
coolant temp sensor
IAC valve (due to high idle)
distributor
distributor cap and rotor
spark plugs (motorcraft platinum's)
spark plug wires
fuel filter
both pre cat o2 sensors
waterpump
alternator
all 6 injectors
also to date i have tested;
ignition coil
ICM
TPS
MAP
engine vacuum (holds steady 21hg at idle)
fuel pressure (holds steady 34psi at idle)
cylinder compression (1,2,3,4 and 6 all read about 150-155 but 5 was at 170, 5 also had and odd un-matched injector)
i have had my scan tool hooked up to it multiple times, bank 2 o2 sensor always reads high (rich .7-.9) bank 1 reads lean most of the time .12-.2 but both do fluctuate. although KOER test come back with bank 1 and bank 2 rich errors. and the plugs are black with soot on both sides.
i have been grabbing at strings and banging my head against the hood trying to chase this problem, and i am finally asking for help "ugh the feeling of defeat" any help or insight would be much appreciated.
also i have checked grounds and verified continuity from sensors to ecu, and that "rattle" is still there.
first time poster long time reader.
honestly i've got a bit of a thick head and like to figure things out for my self but i am literally at my wits end with my truck.
little back story "long made short" bought my 1993 ranger 3.0 last year with engine issues. turns out the guy had replaced the short block not even 2000mi before and whoever did it did a real crummy job, i mean missing bolts, things were loose all around hack job.
anyway, i pulled the motor and went through the whole thing "not my first rodeo" bottom end, indeed checked out to be a replacement short block as there was still cross hatch in the cylinders and no lip. made sure the block and heads were true and re-lapped the valves, verified cam timing, verified everything was at spec torque in the lower end and re-assembled the motor.
after that the truck ran like a top! i put over 500 mi on the truck with absolutely no issues, until i parked it for about 3 weeks.
upon starting it after its short slumber i noticed a slight rattle coming from the motor but continued with my drive, about half way to work the rattle got extremely loud then silent and continued to be intermittent and not RPM dependent the rest of the way to work.
after work i headed to pick up a four wheeler, got there hooked up the trailer and loaded the wheeler up. not 2 miles down the road i literally lost all power the truck would not get out of its own way "no CEL" i limped it home.
since then there has not been a cel so i have been blindly testing, well everything.
since owning the truck i have replace;
coolant temp sensor
IAC valve (due to high idle)
distributor
distributor cap and rotor
spark plugs (motorcraft platinum's)
spark plug wires
fuel filter
both pre cat o2 sensors
waterpump
alternator
all 6 injectors
also to date i have tested;
ignition coil
ICM
TPS
MAP
engine vacuum (holds steady 21hg at idle)
fuel pressure (holds steady 34psi at idle)
cylinder compression (1,2,3,4 and 6 all read about 150-155 but 5 was at 170, 5 also had and odd un-matched injector)
i have had my scan tool hooked up to it multiple times, bank 2 o2 sensor always reads high (rich .7-.9) bank 1 reads lean most of the time .12-.2 but both do fluctuate. although KOER test come back with bank 1 and bank 2 rich errors. and the plugs are black with soot on both sides.
i have been grabbing at strings and banging my head against the hood trying to chase this problem, and i am finally asking for help "ugh the feeling of defeat" any help or insight would be much appreciated.
also i have checked grounds and verified continuity from sensors to ecu, and that "rattle" is still there.
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