Have you noticed a clicking or ticking noise coming from your T6 Ford Ranger engine recently? Has the clicking noise become increasingly loader over time? Does the noise seem out of place and could this be a sign of a component about to fail? Let’s find out!
There are various reasons for engine ticking, so don’t assume everything is fine. To diagnose accurately, rule out issues like exhaust manifold leaks, low oil, and tappet damage (known for causing ticking noises in sync with engine RPM), and check your water level for potential leaks, like a head gasket leak.
Once sure none of these apply, let’s delve into the real-world experiences of Ford Ranger owners for a clearer description.
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Ford Ranger Clicking Noise When Accelerating
Ford Ranger User Experience
When I am driving around town, taking it easy on the throttle without the radio on, I can hear two distinct sounds from the engine compartment. I hear the low, throaty sound of the engine and I hear a clicking sound. The clicking speeds up and slows down with RPM and even goes away sometimes (not just when I let off the gas). The interior is very quiet so both sounds get muted a bit but the clicking sound stands out and drives me batty.
Clicking Noise Symptoms
Some of the commonly reported symptoms and conditions the noise is most audible are:
|Speed||Heard under low driving speeds|
|Audible||Most audible when the cabin is quiet|
|Location||Clicking sound emitted from the engine|
|Rate||Clicking in sync with engine RPM|
|Frequency||Clicking noise disappears intermittently|
As manufacturers create increasingly fuel-efficient, eco-friendly, and powerful engines, these units become highly tuned and sensitive. The direct injection system aims to provide top-notch fuel efficiency, reliability, and superior performance. It’s widely recognized that the direct injection system typically generates noticeable clicking noise.
It results from the high-pressure pump, fuel injectors, and the inherent fuel system. When taken to most dealerships, they often characterize it as a design feature that requires acceptance.
Let’s find out exactly why the Ford Ranger injection system makes such a racket.
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Injector Split Mode
Have you encountered “injector split mode” before? These injectors function in this mode during the Ranger’s idle and under low RPM conditions. Named “split mode” because some of the gas within the injector exits through a vent split. Essentially, a portion of the gas is vaporized and released through this split vent.
Ford Ranger Direct Injector System
Your Direct Injection system runs at extremely high pressures. My research revealed the pressure on the Ranger pump is as high as 3800 psi. Compare that to port-injection psi which runs at 40 psi. By way of comparison, Toyota’s D-4S system uses port injection at lower engine loads and rpm, and direct injection at higher rpm. GM’s direct-injection system can run as high as 1740 psi.
So the major difference in fuel pressure is one reason for the clicking noise level when it runs at these extremely high pressures. Alternating high-pressure flow on and off makes for some interesting noises
When you hear an injector rattle, it could sound very similar to noisy tappets. Constant clicking and rattling, especially at a cold start. Injectors have a limited life span and depending on the grade of fuel you’re using, can either extend or decrease their longevity. Injectors have been known to fail after as low as 40,000 km. The injector could be fouled by contaminants found in the fuel. Do your best to use the best grade of diesel available with the lowest amount of contaminants.
Ford Ranger Humming/Whining Noise When Accelerating
Some owners have reported the problem is usually noticeable after starting but disappears after driving for a few minutes. Others reported that it becomes more noticeable when the engine is at full operating temperature and it becomes louder if you allow the warm engine to idle a little while.
If you are hearing a noticeable humming noise from your engine it could be as a result of the pulsations from the oil pump. The Ranger uses a very sophisticated Oil pump that emits audible pulsations as the oil is transferred through the oil pick-up tube and onto the oil pan.
This was a fault on Ford’s side and If still under warranty, the dealership should replace both the oil pan/sump as well as the oil pump pickup.
The new oil pan/sump design has a different stiffness/rigidity and the oil pump pick-up tube has been revised to prevent vibrations from radiating the noise.
The service procedure addresses the problem when the engine is in a hot idle condition as well as cold starting, to recreate the noise.
The clicking sound detected in the Ford Ranger T6 engine might stem from various components or issues. Often, it’s associated with the fuel injectors and high-pressure fuel pumps, particularly during their operation in split-shot mode, which regulates temperature, load, and engine speed, resulting in an audible clicking noise.