Hello! Thanks in advance for any input you have, this is going to be a long post!
I have a 2012 ecoboost Screw with the 5.5 bed. 133k miles, I have had it for the past 3 years
It has had the start up rattle for about a year so I expected to have to do the timing chain replacement eventually, ideally in the summer, but unfortunately I ended up doing it in the middle of Canadian winter.
I got code P0016 for camshaft position sensor, no performance issues, so I continued driving undaunted, hoping it would be ok till it was warmer.
3 weeks later I got in the truck one morning and started it, it coughed up black smoke, and would jump around at idle between 500-1500 rpms. I drove, more like stuttered around the block and parked it again, and it died while idling once. The whole engine seemed to be shaking the truck.
I got codes
P0017
P0018
P0019
P0365
P0369
P0390
P0394
These are all cam/crankshaft position codes. Stangely none is for a misfire.
I figured the chain had been stretching and now it had jumped a tooth. Using the forums here and Ford Tech makulocos youtube videos I ordered parts from Rockauto and my local dealership.
I bought a garage tent and ran a heater to it and tore into the repair over the course of 2 weeks.
What I replaced:
Main and secondary chains
All chain guides
All tensioners
Camshaft sprocket
Oil Pump (melling 390hv high volume)
Water pump
All phasers
All VCT solenoids
Harmonic balancer
Both belts and tensioner
Spark plugs and boots
Passenger valve cover (I cracked it replacing the vct solenoid seals)
HPFP O ring
PVC valve (with black one)
and all the gaskets i came across as well as O rings
I found the old chain was off 4 teeth! Also about 3/4" of stretch. I though maybe I jumped it while trying to loosen the crankshaft bolt, because it slipped and I turned it counter clockwise several times.
The main tensioner was maxed out. I dropped a tool into the oil pan area, and while fishing for it with a magnet I pulled out the two halves of the little retainer clip that goes on the tensioner. (also got the tool out, it was part of a ratcheting 8mm wrench)
Put everything back together with fresh oil and coolant, turned the engine over with the ignition disabled until I built oil pressure.
Now it runs, but it feels much the same as before. The engine shakes and idle stumbles. Also I can hear loud tapping/knocking which I believed could be the lifters lacking oil. I tried a tehcnique where you rev up to 3k for two minutes with no change. I listened to the motor with a stethescope and the sound seems to come from the HPFP, maybe normal because the covers are all off.
Shortly after startup I got code P0302 for cylinder 2 misfire. I drove around the block and got P2196 and P2198 ( rich condition exhaust O2 sensors on both sides). I swapped plugs and coils on that cylinder to no avail.
My greatest fear is bent valves, from the first day I started it up and possibly had jumped 4 teeth. After the repair the motor was much easier to turn over by hand.
I will do a compression test tomorrow. But if only cylinder 2 is misfiring I wonder why both banks are rich, and plan to replace the purge valve.
I also installed a mishimoto dual catch can.
If you are still reading thanks for sticking though. I appreciate any advice, I took lots of pics and videos if that helps let me know I will post.
I have a 2012 ecoboost Screw with the 5.5 bed. 133k miles, I have had it for the past 3 years
It has had the start up rattle for about a year so I expected to have to do the timing chain replacement eventually, ideally in the summer, but unfortunately I ended up doing it in the middle of Canadian winter.
I got code P0016 for camshaft position sensor, no performance issues, so I continued driving undaunted, hoping it would be ok till it was warmer.
3 weeks later I got in the truck one morning and started it, it coughed up black smoke, and would jump around at idle between 500-1500 rpms. I drove, more like stuttered around the block and parked it again, and it died while idling once. The whole engine seemed to be shaking the truck.
I got codes
P0017
P0018
P0019
P0365
P0369
P0390
P0394
These are all cam/crankshaft position codes. Stangely none is for a misfire.
I figured the chain had been stretching and now it had jumped a tooth. Using the forums here and Ford Tech makulocos youtube videos I ordered parts from Rockauto and my local dealership.
I bought a garage tent and ran a heater to it and tore into the repair over the course of 2 weeks.
What I replaced:
Main and secondary chains
All chain guides
All tensioners
Camshaft sprocket
Oil Pump (melling 390hv high volume)
Water pump
All phasers
All VCT solenoids
Harmonic balancer
Both belts and tensioner
Spark plugs and boots
Passenger valve cover (I cracked it replacing the vct solenoid seals)
HPFP O ring
PVC valve (with black one)
and all the gaskets i came across as well as O rings
I found the old chain was off 4 teeth! Also about 3/4" of stretch. I though maybe I jumped it while trying to loosen the crankshaft bolt, because it slipped and I turned it counter clockwise several times.
The main tensioner was maxed out. I dropped a tool into the oil pan area, and while fishing for it with a magnet I pulled out the two halves of the little retainer clip that goes on the tensioner. (also got the tool out, it was part of a ratcheting 8mm wrench)
Put everything back together with fresh oil and coolant, turned the engine over with the ignition disabled until I built oil pressure.
Now it runs, but it feels much the same as before. The engine shakes and idle stumbles. Also I can hear loud tapping/knocking which I believed could be the lifters lacking oil. I tried a tehcnique where you rev up to 3k for two minutes with no change. I listened to the motor with a stethescope and the sound seems to come from the HPFP, maybe normal because the covers are all off.
Shortly after startup I got code P0302 for cylinder 2 misfire. I drove around the block and got P2196 and P2198 ( rich condition exhaust O2 sensors on both sides). I swapped plugs and coils on that cylinder to no avail.
My greatest fear is bent valves, from the first day I started it up and possibly had jumped 4 teeth. After the repair the motor was much easier to turn over by hand.
I will do a compression test tomorrow. But if only cylinder 2 is misfiring I wonder why both banks are rich, and plan to replace the purge valve.
I also installed a mishimoto dual catch can.
If you are still reading thanks for sticking though. I appreciate any advice, I took lots of pics and videos if that helps let me know I will post.
