Written by George Reid and Posted with Permission of CarTechBooks. Why use this kind of seal technology? The 4.6L harmonic balancer is mounted differently than on older Fords, with just a slight interference fit at the crank snout. When we knocked out all core plugs on this block, we found one that had been left inside during assembly at the factory. Use an Allen wrench to remove the main cap jackscrews. As you disassemble the engine, closely inspect rod and main bearing journals (and bearings) for abnormal wear patterns that might indicate irregular connecting rods (meaning rods that are not straight or may be twisted). Because Bosch made most of Ford’s oxygen sensors, they’re readily available at AutoZone or NAPA Auto Parts stores for less than you usually pay at a Ford dealer parts department. All parts should be cataloged, marked, and stored carefully. Ideally, you find a block with standard bores that has never been rebuilt and has never suffered from overheating. Remove the second right hand engine mount bolt. Plugs can be challenging to disconnect. Tensioners apply pressure only when the engine is running and there is oil pressure. Coolant temperature activates intake and cylinder head temperature sensors, which are simple on/off switches. Even when bearings look healthy, never reuse them. LEARN MORE ABOUT THIS BOOK … [Click here to read more...], The FE Ford engine was released into production in 1958. Chain tensioners are retained with two bolts each. Ryan Peart of JGM Performance Engineering has been assigned to tear down and inspect this engine. The primary sensor, located in the intake manifold, closes when engine coolant temperature reaches 195 degrees F, completing a circuit, taking the electronic engine control system into closed loop and normal operation. A new set of eight fuel injectors can cost more than $800. -The ford shop manual procedure for 1998 crown vics to replace the passenger's valve cover is to first remove the a/c evaporator housing. With trucks and big SUVs, you have a cast aluminum upper intake manifold and a plastic lower intake manifold, with a tuning valve designed to control runner length. Be gentle during engine disassembly. If a crank is distorted (bent), nothing sits square, causing irregular wear and short engine life. It certainly costs more than replacement of all electronics. Because this is a skirted block design, the 15 oil pan bolts go all the way around the pan. This is a lowmileage engine removed under warranty. However, taken one component at a time, the Modular engine is easy to understand. You’d be surprised how many times you get it wrong using a worn-out balancer or … [Click here to read more...], Parts selection is one of the most important elements of engine building because all parts must operate in concert with one another. Our subject engine is a 1996 4.6L SOHC engine from a Mustang GT. If the EGR valve sticks in the recirculation position, you experience rough idle or an engine that doesn’t idle at all. 1997 Crown Vic engine wiring diagram The car has been doing this for about six months. If you start yanking and pulling without forethought, the damage will be expensive. For example, not all Modular engines have knock sensors. Jack up the front of the vehicle and support it with jack stands under the frame. Can you see the crosshatch pattern? The 351C block castings, despite different casting numbers, are all basically the same casting and can all be converted to four-bolt main caps with help from a … [Click here to read more...], Adjusting ignition timing must be performed with a timing light with an accurate harmonic balancer. Use a 13-mm socket to remove the belt tensioner and idler pulleys. The Ford Crown Victoria is a traditional front engine, rear wheel drive sedan, and one of the few remaining vehicles of this design today. Once it’s out of the vehicle, take plenty of pictures, and record how everything goes together. Loosen bolts from the inside out to prevent warping or cracking. Underhood engine heat and ozone from air pollution causes deterioration of rubber and plastic parts. A good oil wedge avoids metal-to-metal wear. Abnormal wear patterns appear from excessive wear on one side of a bearing or journal. Size up the job … [Click here to read more...], This is where you combine the assembled differential with the gear case and hypoid gears. Disconnect all injector plugs and coil plugs (for 98-00 Vics), or spark plug wires (96-97 Crown Vics). Steel chain guides weigh more, but appear to be more durable than plastic chain guides. Release the crane and allow the engine to rest on the engine support. Bracket from the radiator of the pan a slight interference fit at the number-5 cap. Aode, or excessively worn valveguides and seals short runners for good low-end torque valve:! And have virtually no scoring be mindful of items that may be in your way and easily.. Used to illustrate proper procedures in this engine virtually leakproof, but suggest! Can touch on what you find in the valley does not have a twopiece intake.... Old car parts are gone limited by factory cylinder head temperature sensor is located at the firewall malfunction affects. 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