Diagnosing the Issues
In today’s action-packed video, we are addressing a 14 F-150 3.5 Ecoboost with a check engine light displaying two trouble codes: P0016 (crank cam correlation bank one sensor a) and P0299 (turbo under boost condition). It’s important to note that this vehicle is subject to TSB 170026 for the P0016 code. Initially, the VCT intake actual degrees passed the test, indicating no problem found based on the PID readings. However, upon further inspection, I uncovered the root cause of the issues.
Identifying the Primary Chain Issue
The vehicle had 95,000 miles on it, and the first step was to remove the passenger valve cover to inspect the tensioner and check for chain stretch. Upon examination, it was evident that the tensioner was pushed all the way out, indicating a stretched primary chain. Given the mileage, it was clear that the primary chain needed replacement.
Replacing the Stretched Chain
After disassembling the components and comparing the old chain’s stretch with a new one, it was apparent that the existing chain had significantly stretched over time. The replacement process involved installing the new chain and ensuring proper alignment and tensioning to address the issues caused by the stretched chain.
Resolving the Engine Issues
Following the replacement and meticulous alignment process, the engine’s performance significantly improved, with stable VCT intake actual degrees and optimal readings at idle. The updated tensioner and chain resolved the P0016 code and turbo under boost condition, resulting in a smooth and stable engine operation.
Conclusion
In conclusion, addressing the P0016 code and turbo under boost condition in the 14 F-150 3.5 Ecoboost required thorough inspection, identification of the primary chain issue, and precise replacement and alignment procedures. The successful resolution restored the engine’s functionality, eliminating the check engine light and enhancing the vehicle’s performance.
If you encounter similar issues with your vehicle, it’s crucial to consider the primary chain’s condition and, if necessary, undertake the replacement process to rectify the underlying problems. Regular maintenance and proactive inspections can ensure optimal engine performance and prevent potential issues associated with a stretched primary chain.
What are the codes for the check engine light on a 14 f-150 3.5 ecoboost?
The codes are p0016 (crank cam correlation bank one sensor a) and p0299 (turbo under boost condition).
What is the recommended action for a p0016 code on a 14 f-150 3.5 ecoboost with 95,000 miles?
The recommended action is to pull off the passenger valve cover and look at the tensioner to check if the chain is stretched. If the tensioner shows significant stretching, it indicates a stretched primary chain, suggesting the need for replacement.
What measurements were taken during the replacement of the primary chain?
Measurements included observing the plunger on the tensioner, comparing the stretch of the old and new chains using a tape measure, and ensuring proper alignment of the chain with the marks on the crank sprocket and phasers.
How was the primary chain replacement verified to have fixed the issue?
The fix was verified by observing stable VCT intake actual degrees readings and nearly zero actual degrees at idle, showing that the replacement resolved the issue.