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#09 accord 3.5 engine misfire cold intermittent update#
This is the reason for using the dye to confirm the presence of coolant. Dealer found low oil, said this was the cause, installed a software update and charged me four hours of labor. In some cases, it might be necessary to remove the head for inspection. Allow the engine to cool or cold soak and inspect the suspect cylinder with a borescope for coolant dye. Next, run engine through warm up and pressurization of the cooling system.
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Then, using insulated plug wire pliers take out the wires from the plugged location. While the engine is warming, make sure it deactivates the choke linkage. Check And Replace Spark Plug And Wires (If Needed) Turn on the car’s ignition and let the engine warm up. To inspect for this problem, add coolant dye to the system. Next, inspect all the components to find the actual cause of the rough idle. Here are three basic and most common problems. Third, there is a cold nozzle malfunction. Secondly, the problem is in the glow plug. Only if porosity is found, engine replacement becomes necessary. Diesel cold engine misfire problem is as common as for gasoline engines, but the search range decreases to several reasons. Usually, if porosity is present, there will be a break in the carbon ring.Ĭoolant present in a cylinder cleans the area of entry and can be found by wiping the carbon ring dry with a clean soft towel, exposing the leak path. Technicians should inspect the subject cylinder and look for a break in the carbon ring at the top of the cylinder. Cylinder deck to cylinder liner interface location can cause a leak path into the cylinder when it is warm. The photo above is an example of porosity in the cylinder.