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But is it English or Metric size??

With key off, red indicator on dashboard blinks on, then off, every 3-4 seconds. Turning key to ON will cause the red light to illuminate solid ON for 10 seconds, if no further key movement occurs, then off, if key is turned to START, red light goes off, engine cranks normally. If PATS detects...

WD-40 is a product I once used extensively, until I found it left a sticky, non-lubricating residue behind after I sprayed it on the ways and machine finishes of my Bridgeport Mill. Won't have the **** in my shop anymore.

In production, they keep drums from wobbling around as wheels are installed. Ford calls them "Tinnerman" nuts. Can be removed by using linesman pliers to unscrew them.

No electronic 4x4 system i've seen is satisfactory from my point of view, because they act after the fact of 4x4 need rather than before; sorry. Nonetheless, I still like Ford's electronic clutch.

If they were the same, they would not be compatible with test set gauge hook-ups.

Your advice applies for sure, but before the fact of installing the head. I intended to reveal the trick of eliminating hydrostatic lock on one or two bolts after head installation.

Sometimes debris and or oil has collected in the head bolt threaded holes in the block. It can become trapped by the bolt, preventing it from tightening properly. I would remove the head bolts one by one, leaving them tight, blow out each hole with compressed air, then retorque them. The leak...

Please be aware that the Ford Shop Manual wiring diagrams are in a single publication having several hundred pages.

Published specs no, sorry, but FWIW, front driving wheels are often set at zero to slight TOE OUT, since deflections in the suspension and drive system allow the wheels to track outwards while pulling the car forward.

Vacuum check valve in vacuum line connecting eng. manifold to vacuum operated doors in vehicle. This valve maintains vacuum in door system when eng. supply vacuum drops when eng speed/load causes that. replace vacuum check valve.

The problem with this is that any key or tool (square-handled screwdriver and crescent wrench) that can turn the ignition lock cylinder will start the engine..

I went the route I did because new scanners were very expensive.

My ABS Module quit working; a repair/rebuild facility advised it's main chip was destroyed. I bought a used module having same part numbers, installed it, and the ABS throws continuous code "Incorrect VIN in Module". The ABS functions correctly, so I just drive with the light on.

Usable info. a 3/8-npt (National Pipe Thread) part is actually ABOUT 5/8-inch diameter across the threads (male), and the length of the threaded portion is TAPERED. Reason 3/8-pipe is so big is the 3/8 relates to the inside diameter of 3/8-inch standard steel pipe. More confusion: Copper pipe...

Vapor lock is virtually nonexistent with efi because the boiling point of gasoline held at 35 psi is quite high. At typical temperatures encountered underhood, bp can range from about 95 degrees f and up, depending on many factors, including blending of the fuel. Actual boiling rarely occurs...

Keep in mind here the two different needs: fuel pressure REGULATION is the maintaining of pressure usable by the PCM programming for the injectors to run the engine, while PRESSURE RELIEF is keeping the maximum pressure developed at a safe level not capable of causing damage of any kind.

Yep. For a few years, a Fuel Pump Module separate of the PCM handled returnless data, but somewhere along the way that was incorporated entirely into the PCM.

My 2004 w/4.0 SOHC was bought with 92K. Routine repairs done, starter, alternator, wheel bearings. Now has 190K, still running well. The REAL PROBLEM with givings accolades, or not, actually lies in the ability to predict the future, but I'm damn poor at it!

A regulator may be thought of as a valve, operating in the fuel circuit, just like a variable resistor in an electrical circuit controls the flow of current, only we are controlling the flow of a liquid, fuel. the amount of engine vacuum present determines the position of a diaphragm, which...

There are hundreds of pressure regulators on the market, many having adjustable pressure output. I use one on my '94 GT Mustang. Pressure output must be compatible with make/model engine, of course.

Consider that a closed, pressurized volume of fuel, like a fuel line, where the source of pressure (pump) is not running, will only bleed away a small quantity of fuel because liquid is incompressible, so remaining pressure would drop quickly to zero with only small amount of fuel leaking away...

Cannot confirm nor deny, sorry. Anything is possible. The difference, if any, might only be stall speed, or could be significant, like differing splines.

Yes, interchanging these transmissions introduces a mechanical issue: the gears engaged in 2nd. gear have differing numbers of teeth, thus causing shaft speeds to be outside of the computer's range of acceptance.

Unknown.

5R55W and 5R55S should either "work". Only problem is different 2nd. gear ratios between the two. 5R55S should work, causing trouble code for wrong gear ratio from what the PCM is programmed to. Something is therefore suspect with your 5R55S.

If worst comes to worst, no success, replace the U-Joint yoke on the front differential.

Thank you for your answer. While you did not mention in, I wonder if operation is normal when set to "max a/c"? We reside along the Colorado River south of Bullhead City (AZ) where it is often hotter than Tucson. We run A/C set at MAX only. After locating the vacuum check control, which is...

I suspected the check valve but have been unable to find the damned thing. It is pictured in the shop manual.

2004 XLT 4.0 SOHC, 185K. A/C works fine, all settings, but lately cuts out when more power is demanded, like climbing a highway incline. When this occurs, blower motor is heard to continue running, but little or no air is discharged from dash vents. Upon backing off throttle demand, normal A/C...

Depends on bell housing, if separate part from transmission, trans. not needed. Generally, the starter motor bolts to the bell housing.

What would be gained? Trans. input shaft stands still, PCM thinks trans is fouled up.

Oil seal friction is variable, based on type, condition, lubrication, so for most accurate bearing preload torque, it is best to establish that w/o the seal. However, using the crush type washer makes it necessary to put the whole thing together at once. For normal driving conditions, the crush...

You have my attention! Disadvantage of crush washers is that very heavy loading/usage of the gears can result in some removal of load from the washer, especially if it was used previously, thus allowing minute play between bearings, loss of preload, plus loss of nut tightness. When Ford got...

I started the thread mainly to stimulate thought on this subject.

I have no further clue.

Keep in mind the use of standard U-Joints on Corvette rear drive axles: in 1967 I heard horror stories, corroborated, of great numbers of failed rear axle U-joints with big engines. Dana Spicer recommended maximum torque applied for that style joint at 1200 ft-lbs. Use of rear gear ratios like...

Primary difference between 5R55s and 5R55W is second gear ratio; use of one instead of the other confounds the PCM which detects unexpected shaft speeds in 2nd. gear as slippage of band or clutch.

My point is not to change the driveline angles, but rather consider that given easy means of installation and removal of the shafts if necessary, splined slip joints front and back might remove the need for u-joints altogether. Unless the frame bends dynamically under driving conditions, making...

It has always been emphasized by Dana Spicer Engineering that they like to see about 2 degrees of misalignment between connections to a Cardan (Universal Joint): This allows for equalization of wear in the parts, promoting long life. This angle varies in vehicles continuously with suspensions...