What can cause car to surge?
If an engine is not getting enough fuel (this is called “running lean”), due to fuel pressure (regulated by the fuel pump and regulator), restricted fuel injectors, a vacuum leak or really anything that throws off the fuel mixture going in to the engine, this can cause the surge.
What causes the idle surge on a Honda?
Inside the valve is a wax pellet (just like a thermostat) that opens and closes a vacuum line that allows additional air to bypass the closed throttle plate at cold idle. The fast idle valve has a reasonably high failure rate. When the valve fails, it causes idle surge. Here’s how to check it out.
Why does my Honda riding mower keep surging?
Surging is also caused by water that got into the fuel. A mower left in a heavy rain or condensation on a hot summer day can choke the engine. Empty the gas tank, properly dispose of the old fuel and try a fresh batch of gasoline. How do you fix a surging engine?
Why does my car surge when I Turn Off the engine?
How to fix Honda GX390 thats surging idle?
This feature is not available right now. Please try again later. How to fix a Honda GX390 thats surging or hunting for an idle. You check to ensure this is actually the problem by spraying starter fluid at the gasket while its surging and see if it clears up. This fix should be the same for alot of the GX series. Loading…
Why does my Honda have a surging idle?
If you have a Surging idle on Honda, read this post. Most computer controlled vehicles rely on the coolant temperature sensor to tell the computer whether the engine is cold and needs a rich mixture. The computer then commands the idle air control valve to open to the correct setting. However, any vacuum leak in the system can screw this up.
What makes a Honda lawn mower engine surging?
Honda and Kohler use a relatively easy to access idle jet that clogs up and causes surging. The Kohler is easier to access than the Honda. Briggs have fitted a plastic carburetor to a range of engines which also clog up and cause surging. All of these carburetors can be repaired by cleaning.
If an engine is not getting enough fuel (this is called “running lean”), due to fuel pressure (regulated by the fuel pump and regulator), restricted fuel injectors, a vacuum leak or really anything that throws off the fuel mixture going in to the engine, this can cause the surge.
This feature is not available right now. Please try again later. How to fix a Honda GX390 thats surging or hunting for an idle. You check to ensure this is actually the problem by spraying starter fluid at the gasket while its surging and see if it clears up. This fix should be the same for alot of the GX series. Loading…