Carlos

UPDATE- removed the valve covers and cleaned all of the sludge from both cams( was not as bad as I thought out would.) Replaced the screen at oil pan and then installed a new cam follower. Car ran great for about 1000 miles and popped the p0087 code again. Took HPFP off and cam follower has gone bad again. How is this tappet/follower being lubricated? Could it be that camshaft lobe is causing the damage? The lobe is rounder than the rest of the lobes for the valves. Any suggestions? Thinking about taking it to the shop to replace the camshaft. Any ideas on pays and labor cost? 2014 ecoboost with 1.5 engine.

Thanks for your reply. As far as I could tell the connector was never unplugged and majority of the wiring is behind the air intake so didn't really touch it. There is wiring that goes past and its attached to the main wiring harness so maybe something went bad there. I'll verify trace the wires back and check if there's a broken ground or possibly positive connection.

I have code P0036 and check engine light. I recently removed the valve covers in order to clean the cams which were a bit slushed up and causing issues to the HPFP cam follower. I verified all sensors were reconnected and have verified all hoses and vacuum liners are connected. I used Kreen to clean the cams and then installed new oil(3qts synthetic/1qt MMO). Idled for 10 min...dumped..and replaced with new motor craft synthetic and filter. Ran it to my inlaws for about 20 miles with no codes. On my way back the CEL came on after 2 miles. Code p0036 oxygen heater sensor bank 1 sensor 2. Any ideas? Car is running great btw. Thanks in advance.

Is the strainer replaceable? And is there anything else recommended as far as cleaning the actual cam assembly that actuated the HPFP?

I recently took my car in to the ford dealership because it was misfiring and I had a p0087 code. Turned out the HPFP was bad so paid to have it replaced. The cam follower was worn thru(pump was replaced nonetheless with a new tappet( cam follower). The service rep said there was a bunch of sludge in the engine and he couldnt tell why since the car is in for maintenance every 5k miles. Car worked fine after HPFP and tappet replacement. One week passed by and the issue reoccured. Took the car back and they said the tappet was worn thru again so they replaced it at no cost. Its been a week and I have the p0087 code again and the misfire. I pulled the pump out myself this morning and the tappet has worn thru again. What is going on? Lack of lubrication or what? Any ideas on what I need to do to fix this. Can the cover for the small cam that actuated the HPFP be removed to inspect the area for a plugged up passage that might be restricting oil flow? I attached pics from the first time I took it in.