Why is my Honda idle problem coming back?

Why is my Honda idle problem coming back?

If you fail to bleed all the air out the idle issues will continue. If you find that the problem goes away after you bleed the air out of the cooling system but it comes back a few days later then check for a leak in the cooling system using the second video on checking for an overheat condition.

Why does my engine rev up when idle?

If gunge builds up on the butterfly valve, it can restrict the air required for a smooth idle when the butterfly is closed, so the engine ECU needs to open the Idle Air Valve more that it thinks it should have to and you get into a cycle of surging revs.

Why does my RPM drop when sitting idle at traffic lights?

While I’m sitting idle at traffic lights I put the car into neutral. The engine stays idling at about 1000 RPM. However every now and then it drops down to about 500 RPM and then quickly back up to about 1200 then goes slowly down to 1000 and stays there for a bit until I go again or it drops again.

Why do idle RPMs fluctuate in Toyota Prius?

If the butterfly is closed too much, the revs will drop too far forcing the engine ECU to open the idle control valve (IAC). It will then try to back off the air through the IAC, but since not enough air is getting passed the butterfly for idle, the revs will drop to far and so the surging cycle repeats.

What causes engine RPMs to fluctuate at idle?

I have a manual 2-door 1998 Honda Civic DX with a 1.6L engine (D16Y7 engine to be exact). “and cleaned the fuel injector cleaners.” Should be: “cleaned the fuel injectors.” Sorry. Look for a vacuum leak. A leak will cause fluctuating idle speed. If no vacuum leak is found, then my next suspect would be the Idle Air Control (IAC).

If you fail to bleed all the air out the idle issues will continue. If you find that the problem goes away after you bleed the air out of the cooling system but it comes back a few days later then check for a leak in the cooling system using the second video on checking for an overheat condition.

What does hunting idle mean on a Honda?

The computer also fights them as it tries to maintain an idle using the IAC but it can’t keep up so you get a ‘hunting’ idle condition meaning that the idle fluctuates from high to low and it never levels out. This condition is often worse after the engine warms up.

Can a Honda EGR cause it to idle?

EGR will not effect idle unless it’s stuck open. Many people go here but to be honest it’s hardly ever the cause of an idle problem on a Honda. When the EGR is a problem it often causes a miss under load NOT an idle issue.

Can a car lose control in wet weather?

Abrupt steering wheel movements or sudden, hard appli- cation of the brakes can cause loss of control in wet weather. Be extra cautious for the first few miles (kilometers) of driving while you adjust to the change in driving conditions. This is especially true in snow. A person can forget some snow-driving techniques during the summer months.

Why does my car make noise when I go over 20 mph?

If you hear the noise above 20 mph it’s most likely a wheel bearing noise but it’s not a bad idea to check the tire tread to be sure the tires are not chopped or worn uneven. If you what to leave me more details about the noise I may have a more definitive answer to what may be the problem.

What can I do about a noisy water pump in my car?

The only fix for a noisy water pump is to replace it. Because of its location (often under the timing belt cover and bolted to the engine block), an awful lot of parts have to be removed to get to it, so it can take several hundred dollars worth of labor to replace a $50 part.

Is the Honda S2000 Loud on the highway?

Yes, the car is loud on the highway due to the wind noise and the fact that it sits at 4,000 rpm when cruising normally, but I got used to it and I even bought a hardtop. Also, since I bought a 2008 model, the suspension was a little softer than the earlier S2000s as Honda refined the car to be more daily drivable as the production years went on.

What should the RPM be on a Honda S2000?

A proper driver’s car, the S2000 really makes you work for it, winding it up to 7000–8500 rpm where all of the action is.

When did the Honda S2000 AP2 come out?

For 2004, Honda gave the S2000 its only significant update, called the AP2 version. The AP2 added larger wheels and a mild facelift for the body, while the suspension was further refined and the engine enlarged to 2.2 liters, bringing more peak torque and a broader torque curve, as well as a lower redline on its digital tach.

What to consider before restoring your Honda S2000?

To replace your hood dampers, please see DIY $13 Hood Dampers in the S2Ki.com forum. >>Join the conversation about restoring your Honda S2000 right here in the S2Ki.com forum. There’s nothing like popping open your hood and looking at a crisp clean engine bay.

Why is my computer not telling me to idle?

If the computer isn’t told to goto idle because it doesn’t see a closed throttle then idle problems will result as the computer doesn’t know it’s suppose to be controlling the engine functions for an ‘idle’ condition. Hence you get an idle fluctuation or it may not idle at all.

What does idle speech mean on a Honda Accord?

This one is more for a hunting or erratic idle, the original speech was for a ‘shaking’ or ‘rough’ idle. For that check out the other link about Honda idle issues or type ‘Idle Speech’ into the search function. Step 1 check for air in the cooling system.

EGR will not effect idle unless it’s stuck open. Many people go here but to be honest it’s hardly ever the cause of an idle problem on a Honda. When the EGR is a problem it often causes a miss under load NOT an idle issue.

Is the Honda 450 Foreman backfiring at idle?

It idles fine now, and doesnt appear to be putting any new oil in the box while idling. When you ease into the throttle it starts getting choppy then backfiring and will die if you dont let off. If you do let off, it idles just fine.

What’s the base idle rate on a Honda Accord?

Depending on the model you normally unplug the IAC after the engine is fully warmed up and adjust the idle screw until you reach base idle which is normally in the 700-750rpm range. This will often set a CEL so you’ll need to reset that after you’re done.

What causes a Honda generator to stop running?

The generator runs for a few seconds then stops. Possible causes for this are: Overloading. The engine oil level is too low/high. An engine fault. An electrical fault. A problem with the capacitor. A problem with the carburettor.

Why does my car rev up when I start the car?

Thank Kevin. Common causes of high RPM excursion at start-up are typically: large vacuum leak, throttle plate stuck open, cruise control stepper motor stuck in one position; faulty throttle position sensor, and/or faulty idle air control motor or solenoid.

Why does my Honda engine not start up?

During start up, your engine is almost dry of oil. If you use thicker oil it will take longer for the oil to reach the top end of the engine. Because of this, the cam and valve train do not get oil for some time during start up.

The generator runs for a few seconds then stops. Possible causes for this are: Overloading. The engine oil level is too low/high. An engine fault. An electrical fault. A problem with the capacitor. A problem with the carburettor.

Why does my Honda engine have a rough idle?

During start up, your engine is almost dry of oil. If you use thicker oil it will take longer for the oil to reach the top end of the engine. Because of this, the cam and valve train do not get oil for some time during start up. When this happens, the parts wear faster and eventually cause things like rough idles.

What causes a car to start but not keep running?

The engine requires the right amount of air and fuel to mix together for ignition. If there is a fuel leak somewhere, then the correct amount of fuel may not make it to the combustion chamber. This might be enough to allow the engine to start, but not keep running.