Yearly Archives: 2016

On Again, Off Again

No I'm not talking about that relationship you're in, I'm talking about the “Check Engine, or “Service Engine Soon” light in the dash of your car. I know it was on a couple of months ago, but it has reared its ugly head again. So you bring it to your local repair shop thinking that it’s the same problem again, and you’re angry. “Why is this light back on, you just fixed it!” Your service manager reassures you in that calm voice that “we’ll look into it and let you know what’s going on.” What you don’t know is that the check engine light monitors many things. Misfires, which includes the spark plugs and the ignition coils. Fuel mixture, which includes the fuel injectors, the intake manifold, the crankcase ventilation system, and the oxygen sensors. Evaporative control, which includes the fuel cap, the fuel tank, vapor recovery tank, the evaporative testing pump, and the purge control valve. The ex ... read more

The 5 Reasons You Should Do An Intake System Cleaning On Your Car

If your car is running rough, hesitating or stalling when it is cold, you might have excessive carbon buildup on the intake valves. We usually see this happening to vehicles with 50K or more miles on them. The carbon is buildup is caused by oil seeping past the intake valve seals which is normal, and from blow by gases from the crankcase which is also normal. Shell, Chevron, Mobil and the other refiners blend gasoline with high detergent levels to clean the fuel injectors and intake valves. The detergents are formulated to inhibit and remove carbon deposits. This works on engines with port injection, but not with direct injection. So what makes the difference? Port injection engines have fuel injectors that spray gasoline right onto the intake valves. Using high detergent Top Tier gasoline in a port injection engine can clean the intake valves reducing carbon deposits. Direct injection engines spray the fuel directly into the combustion chambers. Since the fuel is no longer being sp ... read more

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