2000 Ford F-150 NOx Emissions

2000 Ford F-150

Ford F-150 On the 2000 Ford F-150 with the 5.4L engine, the NOx being high is usually most associated with a problem in the EGR System. The NOx means there is too much exhaust gas not being recycled properly and this very well could produce a knock or ping. So, best place to start here is by checking all the vacuum lines to/from the EGR Valve, EGR Pressure Feedback Sensor and EGR Control Solenoid making sure there are no cracks, holes or loose connections (inspect these carefully! This is common, especially at…

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2002 Chevy Avalanche P0332 Knock Sensor

2002 Chevy Avalanche

Chevy Avalanche On the 2002 Chevy Avalanche, the most common reason for the P0332 is in fact, water intrusion into the Bank2 Knock Sensor. It’s actually been a known problem on these engines for quite some time. There is a fix for it however. The sensor and most commonly the wire harness to the sensor will need to be replaced. During installation, a bead of silicone around rubber grommet will keep the issue from happening again. Unfortunately, it’s just a design/material flaw. To gain access to the Knock Sensor, the…

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2003 Toyota Highlander EVAP P-Codes

2003 Toyota Highlander

Toyota Highlander On the 2003 Toyota Highlander, P0440 is recorded by the ECM when there is an evaporative emissions leak from the components or when the vapor pressure sensor malfunctions. P0441 and P0446 are recorded by the ECM when there is an evaporative emissions leak from the components. When there is a malfunction in the VSV for EVAP, the VSV for pressure switching valve. Or in the vapor pressure sensor itself. So best place to start here is to inspect the vacuum lines to the VSVs for any cracks, holes…

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