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Late last year we started seeing a check engine light on the PT Cruiser. When I checked the code on the OBD-II reader, the only one that came up was P0551 – Power Steering Switch Failure. After doing a little bit of research, I found that this is a relatively minor problem – the only danger from a switch failure is low idle speeds when the power steering is used, and even though it was a relatively inexpensive issue to fix at the shop (the quote was about $140; compare to the several thousands for other codes I’ve encountered in the past), we weren’t rolling in money. Unfortunately, since you can’t pass an emissions test if you show any code at all, and you can’t renew your tags without passing an emission test, it had to get fixed eventually.

After researching the repair (especially here) it seemed like something I could do myself relatively easily. I ended up spending about $55 at NAPA – I bought the replacement switch, a 7/8ths deep-socket as suggested, a container of electronics cleaner, and a bottle of power steering fluid.


First things first. Because you’re dealing with electronics, you have to disconnect the battery. Disconnect the negative battery terminal, which is on the right hand side of the battery if you’re standing at the front of the car. The battery is located beneath the air filter cover, which can be removed by unclasping the two clips on either side (see the video link above). A mechanic in the past showed me how to remove the entire air filter assembly in the past, but over time this damages the assembly, and it’s difficult to reseat. Just use the clips instead.

Note that whether you touch anything else or not, because you disconnected the battery the code will clear, and you’ll have to drive at least 5 miles or so before it will return, so don’t get excited if you reconnect the battery at this point and the code is gone. Drive it to the store and back before rejoicing.  If, like me, you’re looking to pass an emissions test after doing this work, you’ll probably need to do some significant driving after you perform this operation (or about 50 engine starts, per the web research I did), or they’ll fail you for a recent battery disconnect.


Next step – lift the driver’s side front wheel enough to let you get under the car.  The jack goes right where your body and arms are going to want to be, so – even though with the weight of the car on it the jack isn’t likely to slip – safety first and put a jack-stand underneath as well.


At least, I’d rather have these holding the car up than my ribs.



This is the view beneath the car, looking toward the front.  There are several sensory looking things here, so make sure you get the right one. The think you’re looking for is this:

IMG_20130518_121342 edit

It’s the piece circled in red. The plastic clip on the end slips right off when you unhook the clasp.


The plastic clip looks like this when you get it free. As you can see, it’s covered in something – oil possibly, or power steering fluid more likely.  Several people have mentioned that this is enough to cause the code to appear, and have suggested using electronics cleaner like the below is enough to make the code go away.


That’s entirely possible, but since I don’t feel like jacking the car up twice, delaying the emissions test by waiting through another 50 starts, and since the part is cheap enough, might as well do both things at once.


Mask off the area so you don’t overspray cleaner all over everything (it’s not good for rubber), and spray it now, so it can dry.


A single extension on the ratchet with the deep socket was the perfect fit in a cramped space. Once the friction on the threads was broken, the sensor unscrewed easily by hand.


The Power steering fluid is going to drain, so make sure you have something to catch it with.


Compare new and old parts (the worst time to find out you bought the wrong piece is after you’ve spent 30 minutes trying to install it), and simply undo the above process. You can screw the sensor in most of the way by hand, and use the ratchet to tighten it. The hardest part of this whole process for me was trying to match up the plastic clip with the sensor – the fit is very snug, the alignment has to be exact, and after five minutes of trying to fit it, I was beginning to think I’d gotten the wrong part after all. It doesn’t need to be forced – you just have to line up the plug perfectly into the socket.  Don’t forget to reconnect the battery once you have the car back on the ground, and to clip the air filter cover back into place.


Since the power steering fluid drained out, it has to be replaced. After checking the level several times along the way, I ended up adding the whole bottle.  And since no DIY job is complete without at least one trip to the shop along the way, I went back to get a second bottle. The steering was loud and grumbly when I started the car up at first, and whined whenever I pulled on the wheel. After driving it around the block once, I checked the levels again and the fluid had settled considerably, I needed about half of the second bottle to bring the fluid to the hot fill line.

30 miles and 10 starts later, no codes have returned and the steering sounds beautiful.


Our white Christmas turned into a white New Year's

And a white January in general

A flattened box made an impromptu sled.

I tested it out first for Emerson

We decided a trashcan lid was more his speed

There was even a lid big enough for both of us.

Throwing ice chunks was our winter sport

Once the world thawed out, Emerson could go to the park with Grandma Bopp and Grampa Wood

We managed a few visits to the zoo.

Emerson is an expert at the petting zoo.

Sort of.

The requisite rhino photo for Grandma Hritz

Just cause it's a zoo doesn't mean it's not a playground, too.

Jenny turns 20 this year, I think. We got her in 91/92, right?


Candy hunting at the county park

Emerson even hugged the Easter bunny.

Dying eggs is serious business.

Depending on who you are.

It's fun until you run out of eggs.

Easter Egg hunting at home!

Those boots have gotten a lot of mileage

What's better than Easter Egg Hunting? Easter Egg Hunting with a sucker.

Maybe a little bit of a sugar buzz?

And so, Easter 2011 marks the beginning of Lego

More egg hunting, this time at Grandma's!

A visit to Grandma Bopp's and Grandpa Wood's means seeing Petey, too!

And riding the horse.

And all kinds of fun!

Sorry these are so late.  Who feels like snow now?

Christmas Lights

Christmas Morning

Exciting, right?

Getting the hang of it


Christmas was white

Yay! (some more)

Wee had snow at Mom's house, too.

At Grandma Bopp's, fun equals balls

Merry (late) Christmas!


Buddha and Emerson

Our 4th of July was like this

And this

Emerson really wanted to help, but he settled for filming it.

At least until the last spark was out and he could finally help.

Kim had quite the dessert for us afterward


Emerson has finally discovered the piano

I promise I didn't eat Emerson

I might have infected him, though

You'll be seeing a lot of pictures of Emerson at the park. That's where he smiles the most. On the way to the park, though...

Playing at the park in July is hard work!

This is a movie if you follow the link

This is a movie, too. Emerson gets so entranced by other kids.

He's become quite the megabloc tower builder! This one is one of the first few he's made all by himself.

He's also entering that phase where he wants his way when he wants it and how he wants it. Fun times ahead!

Once again I have to catch up to the last few months of pictures, especially before I can start posting vacation pictures.  Without further ado:

Emerson chewing the sugar out of sugar cane. He's not too sure about it.

Emerson has a stash of 3-d glasses.

He wasn't too sure what to make of our snow this year.

Jenny, on the other hand, knew just what to do. Snow won't slow her down.

We knew what to do, too. Stay inside!

But now it's Spring!

And time for vacation.

More pictures soon!


May 2018
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