What happens if you have a bad idle control valve?
Since the idle air control valve is supposed to manage the idle speed of the engine, a bad valve will certainly throw that out of whack. It will cause the idle speed to randomly fluctuate to different speeds rather than stay at one constant speed. The idle speed may be too high at one moment and then too low at other moments.
Why does my car idle at 700 rpm?
There is an air filter which prevents debris from the air from getting into the chamber. But if this air filter is dirty or clogged, then there will be less clean air passing through it. This will cause the engine to idle rough. Your engine should normally get to around 700 RPM after you start the vehicle.
What does it mean when your engine idle is too low?
If your idle is too low, it could be the IAC not talking to the computer correctly. Disconnect the IAC connector for a couple seconds while your engine is idling. If your engine idle didn’t change, you can suspect it to be the IAC. If it is working properly, unplugging it would cause your idle to freak out.
What causes the idle speed to randomly fluctuate?
It will cause the idle speed to randomly fluctuate to different speeds rather than stay at one constant speed. The idle speed may be too high at one moment and then too low at other moments.
Since the idle air control valve is supposed to manage the idle speed of the engine, a bad valve will certainly throw that out of whack. It will cause the idle speed to randomly fluctuate to different speeds rather than stay at one constant speed. The idle speed may be too high at one moment and then too low at other moments.
What happens to your car when you idle?
A rough idle will result in intense vibrations forming whenever your vehicle is stopped with the engine running. Since less air will be going into the engine during its idle state, the car will react by shaking profusely.
It will cause the idle speed to randomly fluctuate to different speeds rather than stay at one constant speed. The idle speed may be too high at one moment and then too low at other moments.
Why is my Honda Fireblade not working properly?
Both the bearings and race are pre-greased, but this dries in time increasing the chance of pitting. Re-greasing and re-tightening – to the correct torque setting, of course, is often enough to cure the problem. The Blade requires a special tool to tighten the bearings to the correct torque.
Can a vacuum gauge be used on a Honda Fireblade?
Use of a vacuum gauge for balancing, is easier with the carbs removed. Early Blades’ plastic fuel taps are often forgotten about in the frenzy to get to the bike’s guts, and snap off as the tank is lifted free. Whipping It off first with a Phillips screwdriver saves a lot of swearing.
What do you need to know about Fireblade bearings?
Re-greasing and re-tightening – to the correct torque setting, of course, is often enough to cure the problem. The Blade requires a special tool to tighten the bearings to the correct torque. Repacking or fitting new head race bearings isn’t massively difficult in itself, but the FireBlade requires a specialist tool to re-torque the bearings.
How much preload do you need for Honda Fireblade?
If bearings are beyond a quick regrease, replace them in pairs. The Blade’s require 25 Newton metres of preload to perform to their optimum. Locking nuts only need to be finger tight – any more and they increase the bearing’s preload. Move the bars side to side several times to seat the components.
Where is the idle air control valve located?
The valve is a major management component of the engine which will either decrease or increase the number of revolutions per minute, depending on what the current operating conditions call for. The valve is connected to the throttle body next to the intake manifold.
A rough idle will result in intense vibrations forming whenever your vehicle is stopped with the engine running. Since less air will be going into the engine during its idle state, the car will react by shaking profusely.
What does it mean when you have smoke coming from your engine?
Billowing fumes almost always mean there’s something seriously wrong with your car. But the color of that smoke might help you understand what type of repair can help fix it. Many engine problems create abnormal or excessive exhaust smoke. In your engine, fuel is burned in each cylinder, creating exhaust gases.
What does it mean when your car has blue smoke coming from the tailpipe?
Blue-gray or gray-white smoke. Blue-gray or gray-white smoke usually means the engine is burning oil. If you have a turbocharged engine, a faulty turbo seal could be causing this, but if you have a more common engine, it’s likely one or more of the following problems:
How to troubleshoot an automotive engine high idle?
The troubleshooting procedure for high and low idle conditions are similar, which are included in the following: Step 1 – If the check engine or service engine light soon has illuminated retrieving the diagnostic trouble codes could lead you in the right direction of what the problem is, or is related too.
Why is the exhaust gas recirculation valve on at idle?
The Exhaust Gas Recirculation Valve is a vital emission control device. It allows the exhaust gas to enter into the intake manifold, with the sole purpose of reducing emissions from the motor. However, this EGR valve isn’t supposed to operate during idle, at wide open throttle or before the engine is warmed up.
Why is idle speed not coming back up?
If the ISC system is working correctly, the PCM should adjust idle speed to keep the engine from lugging down when the A/C compressor engages. If idle speed drops down and does not come back up, the ISC system is not responding the way it should.
Why does my Triumph Bonneville engine not start?
It was like someone had hit the kill switch while going 80 miles and hour. There was no response from the throttle. I pulled in the clutch and the engine was dead. The starter would turn the engine over, but it would not start.
What’s the RPM limit on a Triumph Bonneville?
After a few days of riding with the Procom ICU using Map #9, I’ve realized that the bike runs very well above 1,500-2,000 RPM, but it now runs rougher at low RPM’s and stalls easily on idle. It also will not start after sitting overnight in an unheated garage in near-freezing temperatures.
Is the Triumph Bonneville ignition unit set back to default?
The unit has been set back to “default.” I’ve still been having problems starting my Bonneville in colder weather since installing the Procom. In reading through the Triumph Rat forums, I’ve discovered that cold starting is a problem experienced by other Procom users. It also struggles with a rough idle.
Can a bad throttle position sensor cause idle surging?
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light
When is a bad throttle position sensor a warning sign?
Engine won’t idle smoothly, idles too slowly, or stalls If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS. You don’t want to wait to get this checked out!
Can a bad air control valve cause an engine to stall?
Sometimes the engine stalling will happen on its own while other times, increasing the load on the engine will cause it to stall. For example, if you turn on your heater or air conditioner when you have a bad idle air control valve, then your engine will probably stall immediately afterward.
Engine won’t idle smoothly, idles too slowly, or stalls If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS. You don’t want to wait to get this checked out!
Sometimes the engine stalling will happen on its own while other times, increasing the load on the engine will cause it to stall. For example, if you turn on your heater or air conditioner when you have a bad idle air control valve, then your engine will probably stall immediately afterward.