Questions tagged [failure-modes]

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2
votes
2answers
330 views

Engine failed on 2013 subaru impreza (2.0L, non-turbo) CVT, need second opinions

A very close friend of mine recently had their engine fail in a 2013 Subaru Impreza CVT (2.0L, non-turbo) with around 85k miles. They came to me as their "car guy" but I feel out of my league, so I ...
3
votes
2answers
1k views

What will happen if the knock sensor fails?

I have understood that most recent cars have a knock sensor. This allows among other things greater timing advance due to detecting knock in case the fuel doesn't work well with a greatly advanced ...
3
votes
1answer
89 views

Should I be concerned about these cracks on the giubo?

I can see some fine cracks in the giubo/flex disc on my LS1 Lumina's driveshaft. Is this crack size serious enough to warrant a replacement?
2
votes
1answer
52 views

What are instant failure reasons for an older (not old-timer) automobile?

I usually drive my commuting cars until they are quite old - at the time when repairs start to crop up, the amount and frequency of repair bills dictating when I get a new(ish) one. So far, I never ...
4
votes
1answer
1k views

OBD MIL commanded status and DTC stored

OBD-II Mode 01 PID 0 gives commanded MIL on (bit A7, see link) and Number of confirmed emissions-related DTCs (bit A6-A0, see link). I did hit Mode 01 PID 01 on a few cars but got surprising results. ...
4
votes
1answer
64 views

Mode 06 approaching failure limit

In Mode 06 (OBD), one gets a current value, max value and a min value for every MID, TID supported. If the current value is out of the max/min range, that MID, TID is considered a 'Fail'. But there ...
3
votes
0answers
231 views

Vibrations and Torque Converter Failure

I've read in various places that one cause of vibrations when shifting from Park to Drive in an ATX is impending torque converter failure. Another person asked about the different ways in which a ...
16
votes
4answers
33k views

When does it make sense to replace a camshaft?

Preamble (Rant) I was reviewing this question in which the OP presents a repair quotation that includes replacing the "intake camshaft" to fix an engine that had overheated. To me this ...