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Cars are a fun one "Your emissions system is failing. It's probably because there's rust on the inside of your gas cap." That kind of troubleshooting is about
by debacle 3y ago
Cars are a fun one "Your emissions system is failing. It's probably because there's rust on the inside of your gas cap."
That kind of troubleshooting is about as software as it gets.
- el_benhameen 3y agoHey, I just fixed that one. Turned out to be a mystery evap hose under the rear seat with no visible signs of wear or failure. Was it what any of the mechanics I talked to thought it was? Nope! Did anyone carry the part, or was anyone even able to identify the correct part number, even with a diagram? Nope! Did I have to hunt all over for some marine fuel line that happened to have the same inside diameter so that I could jury-rig a new part? Yep! Diagnosis and repair actually felt a bit like working with third party libraries: all the documentation is wrong, the problem is never your first guess, and you end up rolling your own solution in the end.
- doubled112 3y agoSometimes. Quickly slapping some Vaseline on the has cap gasket has worked in my Ford. A couple of German cars later, that CEL is always much much more expensive.