Tighten the five Allen head bolts to 14 foot-pounds of torque. If the Villager has a speed control actuator, loosen the locknut, then remove the actuator from its bracket on the top of the upper intake manifold. The pressure caused by vibrations from spark knock is converted to a voltage signal. Open the relay box, located near the driver's-side fender well. They are available for the following Mercury Villager years: 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 02, 01, 00, 99, 98, 97, 96, 95, 94, 93.
It checks for pre-ignition, otherwise known as spark knock. The knock sensor is in the engine V under the intake manifolds and coolant crossover pipe. There are various flavors of Knock Sensors, typically the ones on newer model vehicle s work both ways, if the computer does not detect knock, it advances timing slightly to try and increase performance. The computer analyzes these voltages and determines if they meet a pattern that is equal to engine knock. The speed sensor is usually located on the transmission on the long side extending to the right side of the vehicle. A knock sensor is like a small electronic microphone that is usually attached to the engine block and listens for a couple of things that a engine might do.
Unbolt and remove the two left breather tube bracket bolts from the upper intake manifold. The knock sensor is in the engine V under the intake manifolds and coolant crossover pipe. So I take the van to another mechanic in hopes for a second opinion. You will have to remove the upper and lower intake mani … folds and coolant crossover pipe assembly to reach it. As it requires considerable disassembly and an expensive new gasket set to reach it, I suggest you make very sure there is something wrong with it first.
But first, do a diagnostic check before condemning it. When it comes to your Mercury Villager, you want parts and products from only trusted brands. Just because you are receiving a trouble code for it does not mean there is anything wrong with it. I am so frustrated I do not know what to do. Reinstall the components on the lower intake manifold in reverse order of removal. Disconnect the negative battery cable using the appropriate wrench.
You then attach the ground wire to an appropriate location. If you go to Auto Zone, they have the sensor and can give you the step by step instructions to replacing the knock sensor with common tools. Remove the five Allen bolts from the upper intake manifold--these bolts hold the upper and lower intake manifold together. Unbolt and remove the water outlet from the front cover. AutoTrust Platinum provides a growing selection of low-priced switches, relays, and wiring components! If the drain pan is clean, you can reuse the antifreeze mixture, unless the mixture is several years old. Loosen the clamps on the crossover breather tube and remove the breather tube and the bracket from the upper engine front cover. Under the anvil stakes are die formed ridges in the hex cover to further protect against rotation.
Just because you are receiving a trouble code for it does not mean there is anything wrong with it. Later that night, I get in the car, drive about 2 miles and the jerking starts again. Using the Allen wrench and the appropriate sequence see picture in References , remove the lower intake manifold bolts. I tell him my whole story of what the other mechanics have said in the past about this not being a knock sensor problem and he says different. For more information, go to www. Disconnect the air intake resonator tube from the air cleaner-to-intake manifold hose using the appropriate socket. Can you please help me? Move the fuel injector rail and the insulators out of the way.
On the third go-around, tighten the nuts to 18 foot-pounds of torque, then tighten the bolts to 10 foot-pounds of torque, still following the sequence. Unplug the engine coolant temperature sensor's wiring harness connector. Using the picture in Reference 1, tighten the bolts and nuts in sequence to 30 inch-pounds of torque. For your new and reliable knock sensor, purchase only from AutoTrust Platinum! Disconnect knock sensor in-line connector. All Replacement brand items are backed by 1-year, unlimited-mileage warranty. The Mercury Villager is a car that is renowned as being one of the safest cars on the road with many benefits, such as a lot of miles to every gallon of gas which means you get to save money every day of the week even when it's your turn to carpool.
Place the upper intake gaskets on the lower intake manifold, then set the upper intake manifold on the gasket. Pull the radiator hose off the intake manifold. It does this for about 2 miles and then completely stops. Dec 17, 2015 it's in the valley of the engine. If resistances are less than 5 ohms, go to next step. Unbolt and remove the knock sensor using the appropriate socket.
Posted on Apr 10, 2011 diy-au to-repair. You will have to remove the upper and lower intake manifolds and coolant crossover pipe assembly to reach it. Frustrated and hopeless, I now take the van to a Ford dealership. A vehicle knock sensor is a sensor screwed into the engine''s block or cylinder head. He calls me today and says the computer says the knock sensor is bad. The knock sensor is in the engine V under the intake manifolds and coolant crossover pipe.
The harness plug in that plugs into the sensor has to be purchased even if ordered. Compatibility: 1999 Mercury Villager 3. Reinstall the coolant crossover tube. If the light comes back I will return the sensor to the Advance Auto Parts for another one. Remove the five Allen bolts from the upper intake manifold--these bolts hold the upper and lower intake manifold together. Remove the accelerator cable from its bracket on the top of the upper intake manifold.