What does the intake manifold runner control valve do?
Many intake manifolds have runners with two different paths to the intake ports. One path is long for low speed torque and the other path is short for high speed power. A control valve is used to direct the air flow to one or the other pathways by the engine control module, according to various parameters and sensors on the engine, including throttle position, engine speed and load.
What could be the cause of a car’s temperature gauge to fluctuate?
There are several possibilities.1) faulty teperature gauge. In this case the gauage will have to be replaced. This is relarively simple and inexpensive depinding on the make and model of the car.2) Issue with the radiator, coolant of the car. This could be caused due to insufficient coolant, leakage of coolant, damage to the radiator of the car. This will require extensive repair. In this case, it is advised to get the issue diagnosed and fixed at the earliest to avoid engine damage due to over heating.Hope this helps. :)
Ford Windstar 1998+ head gasket problems?
All 3.8L Ford engines had a tendency to blow head gaskets. It was in fact a common problem. Whether they ever really fixed the problem with the 3.8L head gaskets or not I don't know but I did see a lot of complaints about head gaskets on 1998 Windstars so I'm assuming they didn't. Dome lights/door ajar lights stay on, cupholders break, transmission failures, rear a/c issues, and of course the infamous rear axle breaking. The rear axle breaking issue was a major recall and at least 1 person died as a result of the axle rusting until it became structurally unstable and broke sending the van out of control. This was in the news in the beginning of 2011. Apparently, Ford didn't coat the parts with any rust inhibitor and/or they used inferior steel. Having said all that every model car has it's own quirks so any other car you look at will have a list of common failures too.
My intake manifold runner control is stuck open, how do I close it?
I have a 98 ford windstar, and the service engine light is on. It is on because the intake manifold runner control is stuck open. how do I fix this, or, how much would it cost to have it serviced/ possibly replaced?
How do I bypass power steering pump and completely get rid of it?
What do you mean when you say that the pump can't be repaired or replaced? If it's a matter of not being able to afford to fix it or you can't get the parts, then you are probably going to be without a truck for a while until you can get it fixed properly. While it may technically be possible to do away with the power steering, it is most likely going to be more difficult and more expensive than making repairs (if you want it to be safe at all).Vehicles that have power steering simply aren't designed to be driven without it. You will cause damage to other steering components such as the rack or gearbox. Not only that, but vehicles are geared differently now. The steering on a non powered vehicle was designed to function without hydraulics. Without power, a modern system's steering radius is affected greatly, they literally can't turn as far without power.The heavier the vehicle, the harder it is to steer without power. In particular, I would not attempt to drive any pickup(or larger vehicle) on the road without power steering. There's simply to much risk.There are only two times when I would even consider driving a vehicle with failed power steering:In an emergency. Either I need to get the vehicle home, or I need to get someone to a hospital and have no other options.It's a farm vehicle, the only thing I use it for is moving a few tools around a field.I've had to move two modern vehicles with failed power steering. The first was a Honda Civic that wouldn't run. We dragged it about ten miles with me steering the car. It was really hard to turn at all, and that was with a fairly lightweight car. Afterwards it felt like I'd spent the entire day weightlifting, just from a short drive.The other vehicle was my friend's Dakota pickup. I went out with him to get the truck. The pump had failed and we needed to get it back to his house so that we had space and tools to work with. We got it started, he hopped in to drive, and I followed in my car. I followed him right up until he plowed into a tree on a particularly sharp turn. He simply couldn't make the turn without power steering. He ended up with a tow bill, body shop bill, the repair bill for the pump, and a hospital visit on top. That's why I will never recommend doing away with power steering on a vehicle.
What are some symptoms of a bad idle air control sensor?
Idle air control valves open to allow more air to "leak" into the intake, raising the engine rpms, or close when not needed. When your AC compressor kicks in or power steering is activated as you suddenly turn the steering wheel, the sudden drag on the drive belt will bog down the engine. These systems send a signal to the engine computer telling it they are active and it then signals the IAC valve to open, which increases the engine speed. Without this occurring, the engine could struggle, or die. The IAC valve can cause weird idle issues, mess with throttle functionality or cause the car to die. Sometimes they fail, get stuck or just get all carboned up. Sometimes people have success at cleaning them, but generally it is best to replace them when bad. Idle issues and even problems with the IAC valve may not be due to the IAC valve being bad itself. An idle issue does not mean the IAC valve is bad. It is best to pay close attention to how the vehicle is acting, and then communicate that clearly and as completely as possible to your mechanic. Intermittent problems can be very hard to diagnose. Details will help. Knowing more about the vehicle in question and its symptoms (in detail) will also help in understanding more about what it is doing.
How many quarts of transmission fluid should be in a V-6 engine?
check the manual