oddball101
New Member
- Joined
- Jun 8, 2010
- Messages
- 138
- Reaction score
- 0
- Points
- 0
- Location
- Columbia SC
- Vehicle Year
- 01
- Make / Model
- Ranger
- Engine Size
- 5.0
- Transmission
- Automatic
My truck is an 01 ranger with an 00 Monty 5.0 swap in it. it has been code free until recently when it started showing a P0117 code (Engine Coolant Temperature sensor, low input), meaning that the the PCM is seeing the motor as having constant temps above 280*.
What I've done:
1. Replaced the ECT sensor with Ford part (didn't know there were different calibration codes for these) after replacing the it first time with an O'Reilly's version that didn't having any bearing on the code either.
2. Replaced the thermostat (motorcraft).
3. Flushed entire coolant system until it ran clean with the little adapter "T" kit from Autozone at the heater core, then ran it to temp, let it cool down again, then flushed it again.
4. Replaced the thin style radiator with a full width one from the JY (I flushed the JY radiator several different ways, effectively showing great flow and no blockages at all.
5. After running a third of a bottle of seafoam through the crank case and driving it around for half a day, I then did a hot oil and filter change using 10w30. I cleared the code, then let it idle to temp and it showed the P0117 as pending again.
6. I've tried tracing out the ECT portion of the harness and cannot find any areas that appear to have any damage. When it goes underneath the thermostat area though, I lose visual and I am not sure where it leads after that. Everything going back up the reverse side into the main harness also seems fine.
The last time the code came up, it was during some "spirited driving" on my way to the JY to pick up parts for my manual conversion (M5R2) that I am getting ready for.. I was excited.
Thoughts:
-I have noticed that lately, when I start the truck, the oil (dummy) gauge jumps back and forth briefly before settling in the middle. The flickering of the needle only occur at startup. Could this be related?
-The code came up when I was 2 hours outside of town and out of desperation, I cleared the code and then put an extra quart of oil in and ran the heater on high heat after that. The code didn't return the entire trip back.
-Could this be indicative of the water pump going bad? I see no signs of leakage and do not hear any odd noises coming from it.
Any help is appreciated..
What I've done:
1. Replaced the ECT sensor with Ford part (didn't know there were different calibration codes for these) after replacing the it first time with an O'Reilly's version that didn't having any bearing on the code either.
2. Replaced the thermostat (motorcraft).
3. Flushed entire coolant system until it ran clean with the little adapter "T" kit from Autozone at the heater core, then ran it to temp, let it cool down again, then flushed it again.
4. Replaced the thin style radiator with a full width one from the JY (I flushed the JY radiator several different ways, effectively showing great flow and no blockages at all.
5. After running a third of a bottle of seafoam through the crank case and driving it around for half a day, I then did a hot oil and filter change using 10w30. I cleared the code, then let it idle to temp and it showed the P0117 as pending again.
6. I've tried tracing out the ECT portion of the harness and cannot find any areas that appear to have any damage. When it goes underneath the thermostat area though, I lose visual and I am not sure where it leads after that. Everything going back up the reverse side into the main harness also seems fine.
The last time the code came up, it was during some "spirited driving" on my way to the JY to pick up parts for my manual conversion (M5R2) that I am getting ready for.. I was excited.
Thoughts:
-I have noticed that lately, when I start the truck, the oil (dummy) gauge jumps back and forth briefly before settling in the middle. The flickering of the needle only occur at startup. Could this be related?
-The code came up when I was 2 hours outside of town and out of desperation, I cleared the code and then put an extra quart of oil in and ran the heater on high heat after that. The code didn't return the entire trip back.
-Could this be indicative of the water pump going bad? I see no signs of leakage and do not hear any odd noises coming from it.
Any help is appreciated..