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Once again my youngest daughter came to me with a car problem she needed help with: replacing a headlight bulb. One nice thing about modern cars is how well they do keeping dirt and debris out of the engine compartment. The downside is that it is not very intuitive on how to do simple things like replacing a headlight. Before committing to the work, I looked on YouTube at the process of replacing a headlight on her Jeep Cherokee.

The first video I found had a very encouraging sign: the video came in at 3 minutes. That indicated it would be a fairly simple job. I watched all 3 minutes of the video and learned the very important trick to get to bulb. While I would have tried to go in through the hood, it is actually easier to unscrew 3 bolts and go in through the wheel well. The guy did it in 3 minutes on the video but did some editing to remove some of the boring parts. I estimated it would take me 10 minutes. I found time in my schedule and texted my daughter when she should come over so we could work on her car.

My daughter arrived with the new bulb and we did the work in my driveway. Fortunately we had a bit of a warm spell this week and I didn't need to bundle up. We worked together and quickly had the old bulb removed. As you should never let oil from your fingers get on a new headlight bulb, I ran inside quickly to get a single disposable glove so I could handle the new bulb safely. Then we reversed the process and had the new bulb in quickly. It would have gone 30 seconds faster if I had remembered that you turn to the right to tighten. Once I figured that out, the car went back together easily.

When I added up the time it took me to research the most efficient way to change the headlight bulb and the time to actually do the work, I figured I saved myself about an hour. Yes I could have gone in through the hood and figured out how to change the bulb thanks to my skinny hands. I probably would have lost a lot of skin and learned a dozen new expletives so I'm glad I took the time to do a bit of research.

University of YouTube

The check-engine light on my daughter's Jeep Cherokee came on and so I had her use my OBD2 reader to pull the code from the computer. Sometimes the code is a $2000 problem and other times it is a $20 one. She checked the code and found it to be closer to $20 than $2000. The code she pulled is P0128 which indicates that the engine never gets up to the proper operating temperature. Generally this means the thermostat needs to be replaced.

There are a number of tests to verify the problem. If the car is overheating or running cold, that is a good indicator the thermostat is bad. In my daughter's case it is running cold, which means that the thermostat has failed in the open position, which is what it is engineered to do. The final test is to feel the hoses going to and from the engine. If they are both cold, then it is not a temperature sensor problem. My daughter ran through the diagnostic and we are sure the thermostat needs to be replaced.

Now we have two options. We can take the car to a trusted mechanic and pay $300 to have them replace the part or we can buy the part from the auto store and do the work ourselves. Like most of us, my daughter is not made of money and would prefer to save $250 and do the work ourselves. Thermostats generally run about $10 but the Jeep Cherokee requires one to replace the entire thermostat housing at a cost of around $50. It is $42 if you buy an aftermarket part or $63 if you buy the original part from the dealership. At such a low cost differential, I suggested my daughter use an original part.

This evening I spent some time going through YouTube videos on how to pull off the old part and replace the new one. Unfortunately Jeep did a very poor job of making the repair easy. You have to remove a number of different pieces and have useful socket-set attachments, all of which I have. After reviewing the videos, I know it will take a couple of hours but is not an overwhelmingly difficult job. The trick will be to remove as many parts as possible and being able to work hands into cramped spaces.

One nice thing about YouTube is there are a number of do-it-yourself auto mechanics willing to show you the steps for engine repair. They will also show you various tips and tricks to help make the job easier. If you review the videos and feel the job is beyond your skill set, then feel free to back away and leave it to qualified professionals.

Road Trip 2014

I am back in the Bay Area but only for one night. I flew out this morning and will be driving my car back to Utah tomorrow evening after work. For past road trips, I have wanted to leave work early to get an early start on the drive. Experience has taught me I am better off waiting until 7pm so I don't have to fight traffic from San Francisco to Sacramento. It can seriously add 4 hours to the drive.

My wife is laughing at me as I am working extra hard to be prepared for this trip. This evening I gathered with one of my co-workers and analyzed the traffic patterns out of the area using Google Maps with the traffic setting turned on. My co-worker even showed me how to look at statistical averages as it has been raining today and there were more than the normal numbers of accidents.

Rain in the area means it is snowing in the mountains. The car I am driving back is a 1998 Jeep Cherokee and one of the best four-wheel drives I have ever owned. It also has relatively new tires with excellent winter tread and so I should not be too concerned about the snow. I shouldn't be, but I am and so I am checking the Caltrans website that has cameras showing the conditions along the road. I have driven I-80 many times and so I know where the trouble spots are. Yes there is snow on the road and even an accident or two. However there doesn't seem to be a long line of cars because the road is closed, so that is a good sign.

The weather tomorrow will play a huge role in my trip and so I am checking out the my favorite website at www.weather.gov. While I may not appreciate some parts of our government, they do a very good job of providing weather information. Right now there is a "Winter Weather Advisory" for the first part of my trip, a "Special Weather Statement" for the middle of my trip, and a "Hazardous Weather Outlook" for the end of my trip. I could probably postpone my trip by a day if I need to, but the weather forecast doesn't seem to be improving over the next week and I don't want to hang out here too long.

Normally I drive all the way through without stopping. As it is winter and cold outside, I don't want to get somewhere in the middle of the Nevada desert and be so tired I have to pull over and try to sleep. I also have Kayak open and am looking at hotels in Winnemucca which happens to be the half-way point of the trip. I don't see any super cheap rates and so I won't be making any reservations. However if I come across something a little less expensive than $65 along the way, I may just pull in and get a good night's rest before continuing in the morning.

Yes my wife is right and I am probably over thinking this trip. I just want to make sure I get home safe and sound. After all, when something goes wrong on a road trip in the middle of the summer, you don't run the risk of freezing to death or having other cars slide into you.

Satisfaction of a Job Well Done

This past weekend I spent 15 hours working with my sons to rebuild the top half of an engine. The 1996 Jeep Cherokee that my oldest son drives was misfiring in one of the cylinders. We worked on all of the possible causes and determined one of the valves was bad on the 3rd cylinder. I could have paid $800 for a valve job as I don't know how to do that. Instead I just purchased a new cylinder head for $300 and replaced it with my boys.

We started working on the engine Friday night. We were not sure how easy the exhaust manifold bolts would be to remove and we wanted them to soak in PB Blaster overnight. We drained the radiator, removed the power steering pump, and sprayed the bolts. The next morning my son removed the air compressor for the air conditioning system without disconnecting the refrigerant hoses. By then we had enough stuff removed from the engine we could remove the valve cover and head. Sure it took a bit longer than a certified mechanic but after putting everything back together, the engine started right up. We were all very happy and there was much rejoicing.

The next morning my oldest son posted pictures of our handiwork on his Facebook page. It was a huge accomplishment for all of us and we felt like we were ready to tackle more complex automotive projects. The whole experience made me realize that experiencing success is a vital part of the human existence. More importantly, it is up to us to create our own successes. Should you be looking for your own success, my advice is to avoid computers. Most people think I am bald because of my kids. Nope, it is because I work with computers.

Printed vs. Online Catalogs

I got a nice 4x4 catalog in the mail today. Normally I would just toss it but today was different. I spent a good part of my morning replacing the starter in the Jeep Cherokee that my oldest son drives. It was a fairly simple and painless task. More importantly, we both felt a huge sense of accomplishment once we were done and the vehicle started right up. After working on the Jeep, it was kind of fun to sit on the couch and just look through the catalog seeing what modifications we can make.

This got me thinking about paper or printed catalogs vs. online shopping sites. The last thing I wanted to do this afternoon was to log onto my computer and browse 4x4 websites. Sitting on the couch doing basically the same thing seemed like an excellent idea though. I had 10 minutes while I was waiting for something and reading the catalog was fun. Ok, I didn't really read the catalog, I just looked at the pictures and pointed out things to my wife that I might want for Christmas.

My 10 minutes with the catalog were up and it was time to head off to my next task for the day and I tossed the catalog in the recycling bin. Why? Well the store that sent me the catalog has an online store. They also have a physical store here in Salt Lake as well as in other cities across the country. If I know what I want to buy, I will just go to the website and order it. If I need something immediately, I will just go to the store and pick it up.

So the question that needs to be answered is if the printed catalog was useful? Yes it was. I now know what products are offered as well as the relative price. Without the paper catalog I would never have known I could get a simple product that turns my trailer hitch into a useful step. Now that is a sweet stocking stuffer. Oh yea, Christmas is coming so be prepared for the annual deluge of paper shopping catalogs.

Home Auto Repair

Last week I got an emergency call from my 17-year-old son. I was in the middle of something very important and so at the next available moment, I stepped out and gave my son a call. He told me that the horn on the family Jeep had just started beeping. He first assumed it was related to the car alarm. He went out and unlocked the car but the horn kept making noise. He then tried to start the car only to have it run roughly and not stop the racket. My son is a smart kid and so his next trick was to turn the car off and disconnect the battery. The horn stopped but it also meant the car was unusable until we could fix it.

The family Jeep is a 1998 Jeep Cherokee. If you are a Jeep fan, it is better known as an XJ. My wife and son only paid a couple thousand dollars for the vehicle but it came with a 3-inch lift kit and a sweet set of tires. It makes a great car for the kids even though it has a tendency to break down on a regular basis. Having it break down is part of what makes it a good car. I use it as a teaching tool for basic automotive mechanics with my kids. The XJ is incredibly easy to work on and tons of them are still on the road, making replacement parts extremely inexpensive.

Unfortunately automobile electrical problems are sometimes the most difficult to track down and fix. When my son turned on the car, the check engine light came on. I plugged in my OBD-II computer that I picked up many years ago and saw that the car thought it had a bad throttle position sensor (TPS) based on the P0123 code it was throwing. I then did a careful Internet search using the following, "1998 Jeep XJ P0123." Why did I use the term XJ instead of Cherokee? Jeep also makes the Grand Cherokee, which is a completely different SUV. Besides anyone that knows how to work on Jeeps calls them by the car's 2 letter code instead of model name.

The Internet search yielded a number of stories about people replacing the TPS only to have the problem still exist. Most had better luck replacing the clock spring which is part of the cruise control, horn, and TPS electrical circuit. Thinking about how the horn started going off while the car was just sitting in the driveway and the TPS is only engaged while the car is running, I decided to look for a quick check to verify it was the clock spring. Pulling off the steering-wheel shroud and unplugging one of the connections to the clock spring (it is located just above the turn-signal lever) fixed the P0123 code. The horn and cruise control no longer work, but the rest of the car does.

Now that I knew the real problem, I went back to the Internet and ordered a new clock spring for the Jeep. This is not one of those parts that auto stores keep in stock. Until then my son can drive the car to school and back with the help of an inexpensive air horn resting in one of the cup holders. 

Fixing Cars

It is a good thing I am working from home this week as two of my cars are requiring service attention. Last Friday my wife was out running errands in her Subaru when the air conditioning went out, probably associated with our dirt-road vacation last week. Then the "check engine" light came on in the Jeep Cherokee or XJ my kids drive. I don't know how people worked on cars before the Internet.

I was notified of my wife's Subaru problem before she even got home. So I started looking on the Internet to see if there were any common problems on her car. It turns out the clutch is less than reliable. When she got home, I opened the engine, looked at the air compressor, and could immediately see that it was indeed the clutch. Unfortunately they don't just sell clutches and I needed a whole new air compressor. Too bad those things are like $700 for just the part. As I have mechanical breakdown insurance on her car, I only had to cover the deductible and so I had a professional shop take care of the repair. Decharging and recharging the A/C system seemed like too much of a hassle to deal with at home. Had I been willing to do the work myself, there were YouTube videos showing me how.

Yesterday the Jeep XJ's warning light came on. While the car still ran, it is not a good idea to keep driving it until the problem was diagnosed. I pulled out my trusty OBD II computer, plugged it into the Jeep's socket under the dashboard and read off 2 codes that were being thrown: P0171 and P0133. A quick search on the Internet said that the fuel system is running lean and that the oxygen sensor before the catalytic converter is giving a slow response. My experience with OBD II codes is to deal with the 2nd one and it should take care of the first. Further searching on the Internet suggested that the O2 sensor needed replacing. So this morning, I headed to the trusty auto parts store before work and picked up a new one. My son then helped me replace it. Then I unplugged the battery for 15 minutes to reset the car's computer. I then let my son drive the Jeep for a bit to see if the engine light would come on again. So far, it hasn't.

Cars are getting much more complex to repair on your own. However with the Internet, it is also getting easier to fix certain problems.