When do I start my Honda Accord cold?

When I start the engine cold in my ’93 Honda Accord, it will rev up to 2000rpm and slowly go down to 800 rpm as the engine warms up (normal behavior), unless I do one of the following during this process: When jumping a friend’s car, as he connected the jumper cables to his car, my engine immediately starting doing this:

When does the idle air control valve change?

When the engine is running but the vehicle is not moving, this means the engine is idling. During this time, the number of revolutions per minute (RPM) inside the engine will change. The idle air control valve is responsible for managing the engine idle speed.

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.

How to know if your air control valve is bad?

5 Symptoms of a Bad Idle Air Control Valve (and Replacement Cost) 1 Intermittent Idle Speed. 2 Check Engine Warning Light. 3 Rough Idling. 4 Engine Stalling. 5 Load Causes Stalling.

When does an idle air control valve malfunction?

As soon as you start your car, the idle air control valve will immediately malfunction. If you happen to be away from home and this happens, the stalling will happen every couple of minutes in the beginning. You should be able to make it to the nearest mechanic in time before the engine stalls completely.

Why does my air conditioner idle all the time?

The idle issue could be caused by many things: The coolant temp is located under the distributor. It has 2. One with a single red wire and the second with 2 wires green/yellow, blue/yellow Also, make sure your cooland level is topped up. Perhaps you have a bad thermostat and/or a bad coolant temperature sensor.

What does it mean when your car is idling but not running?

When the engine is running but the vehicle is not moving, this means the engine is idling. During this time, the number of revolutions per minute (RPM) inside the engine will change.

Why is my Honda Accord engine so hard to start?

Exhaust gas backflow into the intake manifold at engine shutdown may cause a poor mixture of intake air and fuel at the next engine start-up. Replace the fuel pressure regulator, if needed, and use the HDS to update the PGM-FI software in the ECM/PCM.

What should fuel pressure be on Honda Accord?

Start the engine, and let it idle for 2 minutes. 3. Turn off the engine. Check the fuel pressure gauge. Pressure should be 380 to 430 kpa (55 to 63 psi). 4. Monitor the fuel pressure reading. If the fuel pressure bleeds down quickly after the engine is turned off, go to the Repair Procedure.

Why is my car idle speed too high?

Perhaps you have a bad thermostat and/or a bad coolant temperature sensor. A bad thermostat would prevent the engine from warming up, causing the engine management computer to use a too-high idle speed. Incorrect temperature sensor information could cause the computer to pick the wrong idle speed as well.

Can a bad thermostat cause a bad idle speed?

A bad thermostat would prevent the engine from warming up, causing the engine management computer to use a too-high idle speed. Incorrect temperature sensor information could cause the computer to pick the wrong idle speed as well.

How to fix low idle or stalling on Honda Accord?

How to fix low idle or stalling on Honda Accord by cleaning idle air control valve – YouTube If you have a Honda ( or any other car) that has a very low idle or is stalling out when you let off the gas, it probably has a gummed up idle air control va…

Why does my Honda Accord shut off when I start the car?

When a timing belt snaps, the engine no longer builds the compression it needs to run. Try to start the car, and listen to the sound it makes. If the tone is significantly different than the standard pulse you’re used to, this may be an indication that the engine is no longer building compression.

Is there a recall on the Honda Accord?

For these Accord model years, a recall is in effect. Contact a dealership to have the ignition switch replaced. A clog in your air intake will choke the engine out.

How much does it cost to replace fuel gauge in Honda Accord?

Fuel pressure gauges run from $30 to $50. The cost for a new Honda Accord fuel pump runs from $70 to $100. It’s a more difficult task to replace yourself, so having an automotive mechanic do the job starts at $300 for parts and labor.

What should I do if my Honda Accord overheats?

Repair guides and support for the 5th generation Honda Accord coupe, sedan, and wagon. when starting the car the temp. gauge jumps to red hot ….I’ve been driving the car for 15 minutes max. one way thinking that the car may overheat but so far the car seems normal at these short distances. Answered! View the answer I have this problem too

What to do if your Honda Accord won’t start?

Usually you need to apply it if your car has problems when you turn off your cars engine for a short period of time and later try to start it while it is still hot.

What causes a cold engine to misfire when starting a car?

Drivers often face a misfire problem when starting the cold engine. Namely, after starting the turn number is decreased, there is uneven exhaust and smell of unburned fuel, the engine starts to «misfire», and as the engine warms up, the vehicle starts to work smoothly with no visible signs of engine problems.

What does it mean when cold my Car misfires?

When cold my car misfires, if I let it warm up thoroughly about ten minutes it is fine. It is not vacuum leaks, injectors, carbon, plugs, coil, etc. It has something to do with cold engine with the computer, for when at operating temperature it is fine.

Can a bad coolant sensor cause a car to not start?

Some cars use the engine coolant temperature sensor to control the electric cooling fans. You have two separate temperature sensors for the fans, dashboard gauge, and engine management in most cars. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans won’t start at all.

What should I do if my car misfire after warm up?

Misfire after warm up. Runs great when cold. Has new engine new plugs wires injectors when starts misfiring can shut down start back up and runs fine until a few minutes then starts again. have the same problem? This sounds like you have an intake valve that is leaking. Can you do a leak down test to confirm the issue? This guide can help as well.

Why does my car AC blow cold air then blow warm air?

But that cold air turns warm fairly soon after because the high side pressures build to the point that the high pressure switch shuts off the compressor clutch. Once pressures equalize, the high pressure switch allows the compressor to start up again. The cycle repeats over and over, providing a short period of cold air, followed by warm air.

How to solve Honda idle issues, rough idle?

When watching the Honda idle video please remember that adjusting the FITV is the LAST step in the process and you need to back it off at least 1/2 turn after it bottoms out or it will not start properly when cold. I have many of you come to me and say that you’ve adjusted the FITV and you still have an issue.

Why does a car run when it’s cold?

While cold, the ring-cylinder mate is tight, keeping the combustion gasses from blowing by and allowing the engine to run.

Is the engine not to start when hot?

Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Engine Not To Start When Hot. This topic contains 13 replies, has 6 voices, and was last updated by EricTheCarGuy 7 years, 6 months ago. Recently my 1995 Toyota Camry US 5S-FE (4-cylinder, 2.2 liter, 16-valve) engine always can start when cold.

What makes a 1995 Camry not to start when hot?

Forgot to mention that, the Camry is 1995, unlike modern ignition coils one for each cylinder; it has a central distributor and delivers high voltage to four spark plugs through a set of wires. Thanks. I have a feeling that your crank position sensor (or camshaft position sensor in some cars) is faulty.

What to do if your Honda Accord hesitates while driving?

Honda Accord Hesitates While Driving – Easy Fix. This article describes a solution for a Honda Accord that hesitates while driving. The solution is pretty straightforward. If your Honda stutters, hesitates, or can’t decide which gear to shift into, it is very likely this will solve your problem.

How is the gas pressure regulated in a Honda Accord?

That pump gives off a constant pressure and that pressure is then regulated to the fuel delivery rail by allowing some of the pressure to bleed off back to the gas tank on a return line via the fuel pressure regulator.

Why does the AC blow warm at idle?

Since the AC compressor is driven by the engine, it doesn’t pump as much refrigerant when you’re at a stop or driving slowly. If the system is low on refrigerant, it will show up as AC blows warm at idle and blows colder when the engine is running at higher RPMs. Get your system refrigerant level checked.

What to do when your car AC blows warm at idle?

GM and others use either a three-relay set up to run the two fans at low speed for normal driving and high speed when the AC is on or the low speed can adequately cool the radiator. Other carmakers use a solid-state speed relay that varies the speed of the fans based on engine cooling and AC needs.

Why is my idle speed low when the AC is on?

Problem with Low idle with A/C gone. But you should also make sure your system is not over pressurized, like noted before. Have you checked to see if your ISC is functioning properly? Click to expand… The ISC is what the ECU uses to maintain the idle speed when the AC kicks in or the power steering pump drag the idle speed down.

Where is the fast idle valve on a Honda?

If you don’t want to struggle with the clearance between the throttle body and the firewall, you can either remove the throttle body from the car or just remove the fast idle valve from below the throttle body. Loading…

What causes idle surge on a Honda Accord?

When the valve fails, it causes idle surge. Here’s how to check it out. 1) Start by making sure the cooling system is filled with coolant and there’s no air in the system. If it’s low on coolant, that can trick the fast idle valve.

How does a Honda car know its idle speed?

What you have is a computer that’s literally “chasing” a good idle speed. Techs call this a surge. Honda uses most of those same components to determine idle in their vehicle. However, they use a fast idle valve that has engine coolant running through it.

What does a fast idle valve on a Honda do?

Honda uses most of those same components to determine idle in their vehicle. However, they use a fast idle valve that has engine coolant running through it. 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.

What should I do if my idle air control valve is not working?

If the idle air control valve checks out and the fast idle valve doesn’t, then replace the fast idle valve. It’s a little hard to get to, but replacing it is just a matter of loosening the screws, removing the coolant hoses, and replacing the valve.

How much does it cost to have Honda Accord engine hesitate?

Our certified mobile mechanics can come to you now. Honda Accord Engine hesitates during acceleration Inspection costs $89 on average. It can be frustrating for any driver to expect certain acceleration from their vehicle only to find that the vehicle seems to be hesitant while speeding up.

Why is my engine surging at high RPM?

Your ignition timing may be set incorrectly. Check and adjust, ignition timing. Ignition system problem causing a, weak spark. So, if your engine has a distributor; check and replace distributor cap, rotor, ignition wires and spark plugs. And, you should also have the coil packs checked.

When do the revs drop in a car?

My engine will still warm up and the revs will drop as normal, but they will still cycle to 1000rpm (up and down, up and down…) until the engine is warm (idles at 800rpm). I often get weird looks from people as I’m driving around, since it must sound like I’m the one reving my engine.

Why does my car speed up while driving?

While driving at a steady speed, the engine seems to “speed up” slightly or it seems to miss and buck. If you have a carburetor, the choke may not be set properly. Check the choke plate and make sure it is, opening completely. The engine may be running, too hot.

Why does my car run worse when the accelerator is not applied?

That increases the idle speed. Knowing that the accelerator isn’t being applied (by reading the throttle position sensor) the computer sees a high idle as a problem and commands the idle air control valve to close. That makes the engine run worse. So the computer either opens the idle air control valve again or adds fuel.

What does fast idle thermo valve do on Honda Accord?

The fast idle thermo valve (FITV) controls the idle at cold starts. It keeps the idle high and gradually decreases the idle as the car warms up. These three parts should be taken out and cleaned. If they are beyond cleaning and repair, they should be replaced.

What should the idle speed be on a Honda Accord?

Your Accord’s engine should be at a constant low idle when parked and should not be revving or fluctuating. Having an idle problem is always something you want to take care of as soon as possible.

Why does my Honda Accord run so hot?

Having too low of an oil level will cause oil starvation and a drop in oil pressure. This will cause the engine to run hot and stutter. With the engine cold, check your oil level and top off as necessary.

Why does my Honda Accord V6 not start?

I have a 2012 Accord V6 that has a long turn over to start or won’t start at all on first try. This only happens after driving the car and letting it sit for about 40 mins up to 4 hours. If the car sits over night (cold start) it cranks right up.

Why does my Honda Accord keep cranking over?

Vehicle is cranking over so its not that starter and far as electric it does start eventually so it’s more like the fuel injectors are dirty or clogged air filter trying to suck air through the dirty filter or partially clogged fuel filter trying to force fuel through the filter. 18 people found this helpful. I am having the same issue.

How often does my Honda Accord start up?

Car does not start once every 2 weeks or so. Lights/ door locks does not work, as if the battery is down. When I get a jump start, it starts instantly. If i stop the engine immediately and then try restarting, it starts correctly, as if everything is okey. One more observation, the jump start resets the clock/ radio of the car.

What causes a cold engine and poor cabin heating?

The cold engine & poor cabin heating can only be caused by one thing: a bad thermostat. In this particular car, it comes as part of large plastic housing that also contains the thermostat. This should fix the minor issue of the car not heating properly, but will do nothing to solve the idle issue, which is a more complex problelm to diagnose.

How do you jump start a Honda Accord?

1. Connect the first jumper cable to your vehicle’s battery terminal. 2. Connect the other end of the first jumper cable to the booster battery terminal. – Use a 12-volt booster battery only. 3. Connect the second jumper cable to the booster battery terminal.

Why does my Honda Accord V 6 not start?

Engine turns over but no start. my 2001 Honda Accord V 6 wont start whenever I put the key in ignition all the power comes on the lights come on the radio comes on and the green key flashes but the car won’t start there’s no click nothing I’m having the problem right now.

What to do when your Honda engine won’t start?

Let the engine run for about 20 minutes with the hood closed. Remove the wire from the throttle linkage and turn the engine off. Let the engine sit for five to ten minutes, then try to restart the engine several times. If the engine doesn’t start, turn the key on.

Why does my Honda Accord not start up?

When the ignition is turned on, the battery should deliver a minimum of 12 volts to start the engine. Jump-start the battery to test if the vehicle will start. If it does, you most likely are dealing with a weak battery.

Can you jump start a Honda del Sol battery?

This article applies to the Honda Civic/Del Sol (1992-2000), and Accord (1990-2002). Having a dead battery is no fun; however, the situation can quickly turn from bad to worse if you attempt to improperly jump start your car’s battery. When done correctly, a jump start can save you a lot of time and effort.

How long does it take to jump start a Honda Civic battery?

Jump starting a dead battery is simple, and shouldn’t take more than ten minutes. Knowing how to safely jump start your battery can get you out of a jam, and save you from professional service costs. Read on to learn more. This article applies to the Honda Civic/Del Sol (1992-2000), and Accord (1990-2002).

My car is an Honda Accord 94 and what happens to it is that if it is cold and I start the engine, revolutions are around 1500 per minute and won’t fall. But after a minute more or less, they start to raise and fall continuously. I’ve cleaned the Idle Air Control Valve but nothing changed. Any ideas of the cause?

What causes acceleration in a 2005 Honda Accord?

Warm engine, at 45/50 mph starts to spudder/hesitate, speed drops while giving gas,then quick acceleration,repeat. Hey there can someone help me out i Have a 2005 Honda accord euro/driving normally then suddenly starts shaking wen you accelerate,revs up in down wen idles.

What happens when you press the gas pedal on a Honda Accord?

After my 2013 honda accord with cvt transmission sits for awhile (1- 2 days) without being moved, the transmission will not engage. It doesn’t matter if it is in reverse or neutral. When i press on the gas pedal, the engine revs but the car doesn’t do anything. After about 30 seconds, the car will move, but very slowly although the rpms are high.

What kind of car has trouble holding idle until warm?

SOLVED: From Cold Start, car has trouble holding idle until warm. Why? – 1997-2001 Toyota Camry – iFixit The XV20 series of the Toyota Camry is Toyota’s 6th generation of the Camry sedan. From Cold Start, car has trouble holding idle until warm. Why?

How do you fix an idle air valve?

The quick, temporary, fix is to take off the air filter and hoses attached to the throttle body and spray some carburetor cleaner into the idle air control valve. I found a video on youtube which walked me through it, but it’s honestly a really quick and easy fix.

What causes a Honda Accord to have a rough idle?

While you have the valve cover off check the timing belt tension, if you feel a lot of slack this can cause the cam to ‘chunk’ as it spins causing a rough idle. This is because the valve spring pressure pushes on the cam as it rotates past the lobes causing a brief acceleration of the cam.

What do you do when your Honda engine is at idle?

An easy way to find one of these faulty PCV valves is to pinch off the supply line to the PCV valve with a pair of pliers while the engine is at idle. If the idle smoothes out when you do this, replace the PCV valve with an OE unit.

What should I do if my car wont warm up when I start it?

Turn on the car’s ignition and let the engine warm up. While the engine is warming, make sure it deactivates the choke linkage. Then, using insulated plug wire pliers take out the wires from the plugged location. During the process, if the engine’s speed doesn’t drop, it clearly indicates a problem with a spark plug or wire.

Why does my car idle when it is warm?

When the cars idle gets rough, it hard to comprehend the related causes. It is because rough idle when warm can either be caused by one faulty component or through series of problems. Hence, after knowing the ways to troubleshoot rough idle when warm problem, anyone can now keep a check on their vehicle’s status.

What to do when your Honda Accord shuts down?

Same deal, when it gets hot, it stops working. Lastly, ignition distributors are bad about going out. Run your car in the driveway until it stalls. The pull a plug wire off, put and old spark plug in it, and hold it so the end is by the motor, like a bolt, and have a friend crank it.

How does the Honda fast idle thermo valve work?

Dan explains how Honda’s fast-idle valve works, the symptoms you’ll encounter when it doesn’t and how you can home in on diagnosing a leaker. A customer’s Honda runs perfectly fine when the engine is cold, but then develops a weird surge condition after it’s warmed up. For no obvious reason, the idle speed fluctuates steadily up and down.

How can I tell if my Honda is running a cold engine?

If this were the case, a cold engine would start and promptly stall. You can quickly check valve operation by removing two screws and pulling the cover off the top of the valve. When a cold engine is running, you should feel suction at the tip of the air bypass valve.

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