Troubleshooting Of Automobile Exhaust Holes

Car vent failure phenomenon: A Dongfeng EQ1090D car has a muffler blasting phenomenon during driving. During parking inspection, when the ignition coil high-voltage main line is unplugged, the ignition coil is tested at a distance of 34mm from the cylinder body, and the distributor is turned off. When the contacts or the crankshaft were cranked, the flashover was normal, but it was found that the contacts of the distributor were ablated.

After grinding the contacts with sand bars and adjusting the gap to 0.35-0.45mm, the engine runs normally after starting, but when the car travels about 40 kilometers, the muffler fires again.