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Common Powerstroke Problems & How to Solve Them.

by Brian Lakowski aka FordtechMakuloco

When I started working with Ford in 2005 I came at a prime time

when the 7.3L Powerstroke was still coming in for warranty work and the problematic 6.0L was just getting started. I was with Ford all the way through to the current 6.7L Scorpion engine. Each version of the Powerstroke through the years has had their fair share of problems. This was multiplied as the fuel injection system tolerances and injection process became much more precise in order to meet strict new emission standards.

Let’s start off with the 7.3L Powerstroke, Fords’ most reliable diesel. There were only a few common issues with this engine and it almost always had to do with the engine oil or the glow plug system. I knew if a truck was coming in for a driveability or a cold starting concern it was likely due to injector stiction issues. Stiction is where the poppet valve inside the Hydraulically Actuated Electronic Unit Injector (HEUI) sticks. This valve must move from an open to closed position very fast to match the fuel timing. When it sticks in the bore, the Injector Driver Module has a hard time controlling exactly when fuel is injected. This sticking can cause a no start or hard starting issue. The reason is that diesel fuel is compression ignited at the top of the compression stroke when the cylinder pressure and heat are the

highest, causing the fuel to ignite and start the power stroke. If the

fuel is not injected at this precise moment a misfire and power loss

will occur. The 6.0L suffered from this power loss and having a HEUI

injected engine compounded the issue. Normally to fix this issue a

new injector was installed costing between $400-600 per cylinder.

By using Hot Shot’s Secret Stiction Eliminator this can be resolved

for the mere cost of the bottle. I have used this product throughout

the years and I am amazed at the results every time. It is truly an

amazing product that customers and Fleet owners couldn’t be

happier with.

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