While we feared the fuel pump or the fuel pressure control module, it looks like it might be chewed wiring from a rodent's nest and bad cam timing solenoids.
The mechanic is reasonably confident this will take care of it.
Eyes crossed.
The sad thing is I'd replaced the solenoids six years and 13k miles ago. Mutter mutter mutter.
At least this time we'll have a warranty!

Rodents? Heck you has Capybaras under that there hood. Start putting glue traps with a dab of peanut butter in the center, under your car. Might even want to nail them to boards from the looks of that.
ReplyDeleteThe galling part of this is the parts they think are causing the problem are parts that I've replaced before. It's not a difficult fix.
DeleteBut I'm really paying to get the mystery solved, not the wrenching.
I hear ya, but why not start DIY and use the mouse sucker 2000 to clean it all up then patch the areas where wires are indeed bare and possibly going to ground or touching each other? Easy work, then try to see if it runs OK. I have done car work in FL and AZ in the middle of summer so I can relate if you decline ;-)
DeleteIntermittent and sudden problems are difficult to diagnose. Normally the solenoids fail electrically and have their own code. These appear to be failing mechanically, so no discrete code and the pdf shop manual I have doesn't have the complete trouble shooting section.
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