How often should you do fuel injection service?
Generally, you can use fuel injector cleaner every 1,500 to 3,000 miles. Many people like to use fuel injector cleaners whenever they get an oil change, as it’s easy to remember. Another way to know when to clean your fuel injectors is to look out for signs of a clogged fuel injector.
How do you know when to replace a fuel injector?
Another effective test is to measure the pressure loss in the fuel rail when each injector is fired and pulses for a set period of time. Use an electronic injector pulse tester for this. As each injector is energized, a fuel pressure gauge is observed to monitor the drop in fuel pressure.
What should the pressure be when opening a fuel injector?
The electrical connectors to the other injectors are removed, isolating the injector being tested. The difference between the maximum and minimum reading is the pressure drop. Ideally, each injector should drop the same amount when opened. A variation of 1.5 to 2 psi or more is cause for concern.
What happens if you don’t change oil with direct fuel injection?
Not changing the oil in an engine with direct fuel injection can result in a worn fuel pump camshaft lobe.
What happens when your fuel injector is contaminated?
Vehicle Won’t Start With Full Tank Major symptoms of contaminated fuel can include cranking no-start, hard starting, stalling, loss of power and poor fuel economy. Because symptoms of fuel contamination generally appear immediately after refueling, the fuel gauge needle pegged on full should always be a diagnostic red flag.
How to flush a fuel injector cleaner tool?
Let the engine run until the tank on the fuel injector cleaner tool is empty. Disconnect the fuel line from the tool and reconnect the primary fuel supply line from the fuel pump to the fuel rail. Reattach power to the fuel pump (if you had to remove it earlier). Step 5: Start the engine, check for error codes or clear existing codes.
When is a fuel injection system flush needed?
Fuel systems flush is a GREAT money maker for dealers/mechanics. And 99.999999% of the time it’s never needed. Unless your vehicle is throwing any codes, or you’re experiencing drivability problems then it’s not needed.
When to replace fuel injector seals and washers?
If the O-ring fitted to the injector is the problem; then replacing this O-ring will usually fix the leak. If the injector body; nozzle or internal components are cracked; then a new or refurbished injector is your only option. Replacement fuel injector seals and washers are cheap and are, fairly easy to install.
When to add fuel additive to fuel injector?
The fuel additive is designed to maintain the fuel injectors and keep them from building up residue that can clog them. You can drive the vehicle around or just let it idle for 10 minutes. For convenience, you can add the fuel injector cleaner while you’re at the gas pump and then fill the tank with diesel.