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Diagnostic challenge

  • juergen.scholl
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3 years 10 months ago #52674 by juergen.scholl
Diagnostic challenge was created by juergen.scholl
Click bait title, I do apologize....but:


Have a look at the picture, what do you think it might be. This is some kind of inverted diagnostic process; we (hopefully) see the cause but what would be the resulting problem?


An expert is someone who knows each time more on each time less, until he finally knows absolutely everything about absolutely nothing.

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3 years 10 months ago #52687 by juergen.scholl
Replied by juergen.scholl on topic Diagnostic challenge
Here is the next piece of the puzzle......



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3 years 10 months ago #52690 by juergen.scholl
Replied by juergen.scholl on topic Diagnostic challenge
End of the riddle......

broken spark plug, missing center and side electrode. Because of the residues this was ongoing for some time. The cylinder still had compresion and came back to live with a new plug and coil,... for the moment. On top of the piston there were some slight dent marks, but the surface is carbonized as well, nothing shiny there

.

An expert is someone who knows each time more on each time less, until he finally knows absolutely everything about absolutely nothing.
The following user(s) said Thank You: Chad, Tutti57

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3 years 10 months ago #52695 by Noah
Replied by Noah on topic Diagnostic challenge
I thought the first pic was an IAC plunger or something!

"Ground cannot be checked with a 10mm socket"

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3 years 10 months ago #52704 by Tyler
Replied by Tyler on topic Diagnostic challenge
I was thinking the first pic was a diesel injector crush washer? :huh: The injector had been loose or something, hence the rough surface. WAY off. :lol:

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3 years 10 months ago #52705 by Tyler
Replied by Tyler on topic Diagnostic challenge
What YMME was this plug out of, Juergen?

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3 years 10 months ago - 3 years 10 months ago #52709 by juergen.scholl
Replied by juergen.scholl on topic Diagnostic challenge
Toyota RAV4, mod. 2000, 4 cylinder engine 2.0.

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Last edit: 3 years 10 months ago by juergen.scholl.

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