The continuing saga, brought to you here because I want to write it down somewhere.
Today I did a few things to the van. I replaced Temperature Sensor II (which history will probably show didn’t really need replacement, but it’s an $8 part), finally put a new bolt on the throttle assembly (I was using zip ties. It’s two bolts, and only one was missing, so it’s not like it was going to fall off), and replaced some of the vacuum hoses.
There are two vaccum hoses that I dealt with: The one going to the fuel pressure regulator, and the one coming off (or is that going on) the throttle assembly. I had some hose, but it was just ever-so-slightly too big. Zip ties to the rescue! I cut the hose to length, and then tightened the ends with small zip ties before slipping the hose on. If you tighten before installation, you can really torque it. Zip ties are a close #2 only to duct tape.
The temp sensor is a little round thing about the size of a quarter, as thick as $1 in quarters. It’s silvery shiny and flat on one side, and has an attractive blue electrical connector on the other. It’s protected from leaking by a rubber grommet around the outside. To install it, you find the thermostat housing, pull out a locking pin, pull out the old sensor, fumble for the new one while coolant spills out, and then put the new one in as quick as you can. Then you replace the locking pin, re-connect the wire, and pray. Of course, it probably would have done better to pray beforehand.
There’s a story with the new throttle bolt. I got on the bus to go get lunch and this stupid bolt at the NAPA place. Only after I got there, I discovered that they were moving, and thus, closed. I wandered down the street to the Schuck’s Auto place, and they, too were in the middle of reorganization of some sort. I had to go be annoying twice just to get someone to sell me a few dollars worth of bolts and washers; they were all diligently stocking and re-stocking. So diligently that they refused to even make eye contact with me.
The result of all this effort: Not much better, but replacing the throttle bolt messed up the throttle idle sensor switch adjustment, which I’ll go back out and destroy tomorrow. The last time I adjusted it I about went insane… You have to loosen a tiny screw and then twist another screw until you hear a click, and then re-tighten the first screw. Except that by re-tightening the first screw, you change the adjustment, so you have to allow for it. And of course you’re doing this while bent over the engine, with two little tiny allen wrenches (did I mention they’re hex-head screws?) under a layer of machinery.
And for all of you out there googling away, here are some relevant search results: 1986 Vanagon Wasserboxer water-cooled 2.1L why do I do this to myself?