I can be driving down the road and the vehicle just dies. Vehicle will not just idle, like if you start to defrost. You have to have foot on gas to keep it running. (Most of the time) I have replaced o2 sensors, serpentine belt, fuel filter, and spark plugs. Nothing seems to help.
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Re: Seems like it does not idle at correct speed
Idle air control motor located where the duct from your breather attaches to you intake, two bolts and a plug, probably has what looks like a black button on it. This is a very common problem on all fords.
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Always observe the following precautions to minimize the risk of death, serious personal injury or damage to your vehicle:<br /><br />In a rollover crash, an unbelted person is significantly more likely to die than a person wearing a seat belt. Therefore, the driver and all passengers should fasten their seat belts whenever the vehicle is moving<br /><br />Avoid sharp turns or abrupt maneuvers, if at all possible. Failure to operate this vehicle correctly may result in loss of control or vehicle rollover causing death or serious injury.<br /><br />Avoid loading any items on the roof that will raise the vehicle's center of gravity.<br /><br />Always slow down in gusty crosswinds. Because of its profile and higher center of gravity, your vehicle is more sensitive to side winds than an ordinary passenger car. Slowing down will allow you to have better control.<br /><br />When driving off-road, or in rugged terrain, do not drive at excessive speeds, jump, make sharp turns, strike objects etc. This may cause loss of control or vehicle rollover causing death or serious injury. You are also risking expensive damage to your vehicle's suspension and chassis.<br /><br />Do not drive horizontally across steep slopes. Driving straight up or straight down is preferred. Your vehicle (or any similar off-road vehicle) can tip over sideways much more easily than forward or backward.<br /><br />Good luck.<br /><br /><br />
Get a can of throttle valve spray cleaner from the parts store and clean the throttle valve and the idle speed control valve, disconnect the battery negative cable for 5 minutes and then drive it a few miles, the problem should be corrected. In the future always include the following: make, model, year and engine type of vehicle..
Some makers used Vacuum releases for their emergency brakes which had a Vacuum switch connected to the shift assembly. This would account for a stumble if Vacuum vented out through this switch.
More common for shifting stumble to occur from Park to Drive, engaging a load on the engine, not to stumble to a freewheeling Park position. Sounds like idle speed control is sluggish to stabilize the motor.
You also have idle speed control problem with A/C, kind of shows that A/C was what kept the engine running because when you turned the A/C off, the car died.
I am going to give you some Websites for wiring diagrams. Alldatadiy.com amd Autozone.com with free wiring info upon registering your vehicle.
It seems that the base Idle speed control is not working and the A/C idle speed control is.
Also check for Vacuum leaks on the intake manifold by spraying water from a pumpbottle on the seams of the gaskets.
Check ignition Relay or ignition switch for random cutouts. The fusebox layout is on the Autozone site.
here are a few symtoms of a BAD IGNITION COIL. the car will spit and sputter.
If your vehicle is getting a lot less mileage for the gallon, you can also register this as a sign of ignition coil failure. When less power is reaching the spark plugs, your vehicle will struggle and use more fuel to compensate for the lack of power transfer.
Trying to start your vehicle when the ignition coils fail will result in a rough ride. Your vehicle will cough and splutter regularly and when you drive at higher speeds, your vehicle will **** and spit. It will also vibrate when you are running idle at a stop sign or intersection.
With ignition coil failure, your vehicle will have irregular sparks emitting to the plugs to keep it running. This will result in stalling. When you bring your vehicle to a stop, it may just shut off totally, thus leaving you needing to restart it.
If your spark plugs are worn out, it forces the ignition coils to operate at a much higher output. Keeping your sparks plug in optimum condition can reduce your chances of having ignition coil problems. Some simple regular maintenance will save you a lot of grief. hope this helps you out !
If you're talking about a cold engine, the vehicle is fitted with an automatic 'up idle' system. Depending on how cold the ambient temperature is. The colder it is outside the higher the idle, until the engine reaches normal operating temp. The engine should then settle down to the correct idle speed. If however the cold start raises the speed to more than 1350, have a scan carried out. If the idle speed is always at a high rpm, do the same.A leakage of air into the intake manifold can also cause the latter problem. A leakage however will not be evident via a scan.
I've never seen a samurai without a PCV valve hooked up. You sure its just missing it cuase that is what releases the pressure build up in the engine. If not working/installed then you're gonna get piston blow by, oil burning, and a rough running engine.