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Does anyone know what voltage I should read at the cam position sensor for a '00 4.0 OHV? My Haynes manual says at least 10 volts when the connector is disconnected from the sensor and the ignition is on run. I am only getting about 0.03 volts at the connector and at the PCM. We checked some...

Does anyone know how much gap there is supposed to be between the sensor and the harmonic balance wheel? I pulled my sensor when I was thinking about have the entire engine rebuilt and I'm not running into a very poor running truck that won't idle and is dumping fuel into the CATs. I thought...

Please excuse the longer post. I want to provide a little background. I have a '00 Explorer with the 4.0 OHV. I pulled the engine out to fix a freeze plug leak and few oil leaks at the lower intake, rear seal and oil pan. I removed the lower intake, oil pan, and cam position sensor, but...

I have a 2000 Explorer with the 4.0 OHV engine. I pulled the engine because I was having some oil leaks. I removed the camshaft position sensor but before I did, I marked the base in relation to the block. I then removed the sensor and moved onto some other things. I never rotated the...

Does anyone know if the rod and main bolts on a '00 4.0 OHV are torque to yield and if so, whether they must be replaced. If I need to replace then, does anyone know a source for these bolts? Thanks, Jim

I have a '00 Explorer with the 4.0 OHV engine. I had the typical misfire caused by a cracked head. I fixed the coolant issue with a new set of heads, but the intake manifold is leaking a small but noticeable amount of oil at the back where it mates to the block. I purchased a new Felpro two...

I replaced my heater hoses and heater control valve. However I don't know if I have the hoses routed correctly. It's a four port control valve. I have the upper port facing the firewall goes to the heater core tube on the passenger side and the lower port facing the firewall goes to the...

I replaced the oil pressure switch on the drivers side just behind the power steering pump on my '00 4.0 OHV. However O'reilly Auto Parts said there are two listed for my vehicle, one for a switch and another for a gauge. The gauge one as a screw type end where the one I replaced is more of a...

I've replace three heater control valves on my '00 Explorer 4.0 OHV. In each case they start leaking within a few months of replacement. The truck sat for a week outside and it's getting fairly cold in WI. When I started the truck I noticed coolant dripping where the shaft enters the valve...

I have a '00 Explorer with the 4.0 OHV. I replaced the heads due to the typically cracked head coolant leak. However I am burning about a quart every 200 miles. A guys is selling a '98 4.0 OHV engine. I'm thinking about just swapping out the whole engine. Does anyone know if the '98 will...

I have a '00 Explorer with the 4.0 OHV. I pulled the rocker shafts. Do I need to replace the rocker shaft bolts? They appear to be torque to yield bolts. If so any advice on where to get the bolts? I checked the Ford web site and it lists the bolts as part number 6A527. However they are...

I have a '00 Explorer with the 4.0 OHV. I was consuming oil like crazy after installing new heads. I think oil consumption wasn't related to the heads but rather the original problem that caused the head replacement (leaking coolant into the # 3 cylinder). I pulled the number 3 piston and it...

I replaced the heads on my '00 4.0 OHV. I am now going through oil like crazy; about a quart every 180 miles. Before I replaced the heads it didn't use any oil. There are no visible leaks, no sign of oil in the coolant and I'm not getting any blue smoke or smell of burning oil. I have three...

I replaced the heads on my '00 4.0 OHV. I now am getting oil on the #3 spark plug base and threads and I am going through oil like crazy. Before I replaced the heads it didn't use any oil. Now it's going through roughly a quart every 100 miles. There are no visible leaks, no sign of oil in...

I recently replaced the heads on my '00 4.0 OHV due to the infamous crack - leaking coolant. Before I did I noticed the plug for the cylinder I suspected (#3) was difficult to remove and the threads were coated with a hard carbon - oil substance. I've now replaced the heads and my rough idle...

I recently replaced the heads on my 2000 4.0 OHV. It fixed my cold start rough idle problem, but now I am getting a slight stumble under light acceleration typically going up a hill. It doesn't tend to stumble if I accelerate harder. I've changed and tried the following (some were prior to...

I have a '00 Explorer with the 4.0 OHV. I replaced the cylinder heads due to a rough idle problem at cold start. Before I replaced the heads I tried just about everything else to fix my rough idle problem, (upper / lower intake gaskets, plug wires, plugs, IAC, TPS, EGR Pressure Control...

I am replacing the heads on my 2000 4.0 OHV. I have two quick questions. I am reusing the push rods and rocker arm. I am installing then exactly in the same spot as they came out. Do I need to replace the rocker arm bolts? Also I notice a few of the rocker arms are not centered exactly over...

I have a '00 Explorer with the 4.0 OHV. I've been chasing a rough idle at cold start for two years. After about 30 seconds the truck runs great. I've changed just about everything possible (plugs, wires, upper & lower intake gaskets, IAC solenoid, TPS, EGR solenoid, fuel filter, fuel...

I am getting an occasional misfire on cylinder number three. I have two quick questions. Is the #3 cylinder closest to the firewall on the passenger side? Second does anyone know how the computer detects a misfire on a specific cylinder? I am trying to find out if my misfire is actually...

I have a '00 Explorer with the 4.0 OHV. Occasionally I get a rough idle for 30 - 60 seconds after the trucks has been sitting for a while (typically for at least 4 hours). I've tried cleaning the IAC, and MAP. I replaced the upper and lower intake manifold gaskets. I also tried replacing the...

I have an 00 Explorer with the 4.0 OHV. I am fighting a rough idle condition only at cold start. I've tried replacing the upper intake gasket, spark plugs, fuel injector o-rings, plug wires, and fuel filter. Occasionally I get a misfire on cylinder 3. I'm wondering if I have a leaking fuel...

I have a '00 XLS 4.0 OHV. I am trying to track down a very brief rough idle condition at start up. The car runs rough for only about 30 seconds. I've tried replacing the fuel filter, spark plugs, plug wires, upper intake manifold gasket, and injector o-rings. I haven't tackled the lower...

Recently my '00 4.0 OHV Explorer (74K miles) recorded a P0303 misfire on the # 3 cylinder. It set the code right at start up when I tend to get a rough idle for only about a minute. I have changed the upper intake plenum gasket and after it set the code I pulled the fuel rail, replaced the...

I am changing out my rear differential with a 3.73 limited slip from a junk yard. I have a few to choose from (a '95 with 39K miles as well as a few '00-'01s with about 85K miles). Any thoughts on whether it is better to go with the older one with less miles or the newer one with more miles...