Rocker arm dislodging

Rocker arm dislodging with valve seat falling out

February 20, 2017 Danny Bender

Have you ever had a customer come in and complain of a poor running engine? After diagnosing it you find engine misfire codes. To narrow down the issue you do a compression test or cylinder leak down test. Rocker arm dislodging with valve seat falling out. Now you have isolated a specific cylinder […]

obd 2 reader

How to find mechanical engine misfires

November 13, 2016 Danny Bender

Mechanical engine misfires can contribute to low compression (bad cylinder, piston rings, sticky or leaky valves or even valves out of adjustment) will affect the amount of air coming into the cylinder which will cause a cylinder to misfire and could set a P0300. You have done your diagnosis and […]


Engine Surging or Misfiring

August 17, 2016 Danny Bender

Engine surging or misfiring up and down while you’re driving. Uneven engine revs and misfiring can affect drivability, but can also cause error codes to appear in your OBD-II Diagnostics system. These codes can cause you to fail your local vehicle inspection, or at the very least can result in […]

Intake Manifold

Engine Misfire or Rough idle on GM 4.8L, 5.3L, 6.0L

April 17, 2016 Danny Bender

Engine Misfire or Rough Idle on GM 4.8L, 5.3L, 6.0L is becoming more common and getting harder to diagnose. With this getting worse it is also setting off MIL illuminated with a stored code of P0300. Most of these engines are calibrated for ethanol fuel (E85). Due to the low volatility […]