F53 – When do you decide to fix broken exhaust studs

I get asked these questions a lot: What causes this?  Can I drive like this? When should I fix it? To answer these questions, we need to know what happens as this failure progresses. The studs are exposed to heat cycling, road chemicals,  and oxidation (rust) and the manifolds expand Continue reading F53 – When do you decide to fix broken exhaust studs

F53 – 4R100 transmission cooler bypass tube

If you look on the Ford truck enthusiast forums, there’s a great deal of discussion regarding the cooler bypass tube and the integral pressure relief valve.  A common misconception is that this tube is used to control transmission fluid temperature,  i.e. when the fluid is cold,  the tube bypasses the Continue reading F53 – 4R100 transmission cooler bypass tube

How to raise Power Gear jacks one at a time

NOTE – The control voltage to raise /  lower jacks changed in newer models.  On mine,  the control module supplies a ground to energize the solenoid valves.  On newer models, the module supplies 12 volts to energize the solenoid valves.  Make sure you test so you know if you need Continue reading How to raise Power Gear jacks one at a time

F53 – Brake pads and wheel bearings

When we bought our used Southwind, I was the third owner and  there wasn’t any maintenance history,  so I had no idea where it was regarding preventative maintenance. I performed a very exhaustive pre-purchase inspection which included a look at the front brake pads, but you can’t see the rear Continue reading F53 – Brake pads and wheel bearings

F53 – Servicing Differential (Dana S135)

Servicing the differential oil is fairly easy and straight forward. Ford recommends using 75w140 synthetic.  The Dana Service manual says to change the oil every 250,000 miles or 3 years..  These specs could easily apply to a service truck that travels 250,000 miles in a few years.  However,  My Southwind Continue reading F53 – Servicing Differential (Dana S135)

F53 – Replace transmission shift lever (OD button)

Immediately after we bought our Southwind,  I noticed the over drive button (OD) seemed to be intermittent.  A search of the internet showed that this was a common problem with Fords.  Where the wires exit the transmission shift lever,  they can chafe,  break, and sometimes short out, causing weird instrument Continue reading F53 – Replace transmission shift lever (OD button)