Googled the problem and got a number of causes including a bad brake light bulb or third light bulb?? All the brake lights worked so that wasn't the problem. The third light didn't have a bulb, but after I replaced it the cruise still didn't work. Then I found how to do a diagnostic on the system using the buttons on the steering wheel. The first diagnostic procedure I found didn't give the codes and what they mean. I thought when I hit the last button the one flash was for that button and one more flash meant the system was good. Then I found another site that gave the error codes and two flashes meant the clutch switch, brake switch or one other problem.
|The one on the left is the old switch and the one on the right is the new one.|
When I took the clutch switch apart I saw the springs were broke. The part that slides was not being pushed all the way back and was always in the position for canceling the cruise.
On a side note, a couple weeks ago I read an article about how auto parts stores will soon be history. The guy that wrote it had a dealership or something where they did repair work on cars. He said there was a huge markup on parts, altho as a business he got a better deal than the average person. After having had a number of problems with auto parts stores sending him the wrong part or having to wait a couple days he started checking out online parts places. The conclusion he came up with was if you can afford to wait a couple days it makes good sense to order your parts online.
Anywho, I checked the price online with Autozone and they wanted $90. At Amazon I could get a Motorcraft (Ford replacement parts) for $45 and found the one I order for under $25. I took a few days as it wasn't coming from Amazon, but the cruise hadn't worked since I bought the truck, so what's a few more days??
Also on prices, the check engine light is on the truck and I had Autozone check it and found out one of the O2 sensors is bad. Asked how much it cost and was told about $90. I checked Amazon and I can get one for under $20. Now I need to go see my neighbor and see if his code reader can figure out which one of the four O2 sensors is bad.