Using Google to diagnose engine issues

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Original Member Title: Using Google to diagnose engine issues
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Members discussed using Google and AI tools such as Gemini, Copilot, and ChatGPT to research RV and vehicle problems, including a Pace misfire or backfire, trailer brake issues, generator surging, rattling at idle, and diagnostic trouble codes. Several RVers said these tools can quickly gather likely causes and possible fixes, especially when the question is specific, but the results still need to be checked against real symptoms, service information, and hands-on diagnosis.

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garyb1st

Senior Member
Joined
Dec 31, 2010
Posts
6,205
Location
Sunny So Cal
Not sure if I'm just late to the party or if is this something relatively new. When I was trying to understand why the Pace was backfiring (more likely a misfire) I posed a question in Google thinking it would give me a number of websites to look at. I was surprised when it actually gave a pretty good (at least I think it's a good) analysis of what was or could be causing the misfire. It actually sited IRV2 as a source with a link. I have since used Google on other questions and find it to be quite helpful.

What do you think and are there any downsides to using Google for general questions?
 
Steve used AI to diagnose our trailer brake issue.

If you ask good questions I think you can get good results but as with most information you need to be skeptical.
 
I use Gemini (CoPilot and ChatGPT will do the same) because it brings all of the web site information into a single summary. I also ask it to provides links for each item it includes so that I can go an review the material myself if needed.

Using Gemini or anything other AI agent vastly decreases the amount of stuff the I have to sort through to find answers.
 
I have used google on occasion for issues like this. I usually ask it to generate a report of all possible symptoms. a statement such as "compile and emit a report of all possible causes for "xxx.yyy". continue research until you are 99% certain of a correct result"

that usually works quite well..
 
my honda generator was not happy after sitting for 6 months unused. I knew from experience that the most likely cause was sheeit fuel gumming up the carb. Just for grins, i asked google this :- "compile and emit a report of all possible symptoms and likely causes of a honda 2200 inverter generator that constanty revs up and down when idling or under load. continue research until you are 99% of a correct result"

the results are quite comprehensive. i then asked it for solutions to mitigate the issue.
 
I can't believe how often I use Gemini, my version of AI. Everything from medical issues and how to's to how much is the wind blowing on a section of the lake I'm going sailing on. I don't google anything anymore, go straight to AI. I like a site like this one for real world experience as AI doesn't do that well but otherwise it's pretty amazing.
I'm an old school libertarian though and I wonder how much info its generating on me. We go to a local farm dinner/picnic once a month here and recently some photographer has been wandering taking pictures. I let her know that I'd rather not have my pic taken and used however she wants. In this modern day and age anything could happen once your pic gets uploaded to AI. It does make mistakes, somewhat scary.
 
Google has been answering my questions for years. Long before AI. I feel the answers are correct about 99% of the time.
I used to know a Google Employee, Her side gig was music. to which was listening today by chance.
What makes it better? Well she was covering a piece by another musician, whom I've taken to dinner.

(I know a lot of musicians it seems).
 
I use Google occasionally. My most recent was my new car makes a rattling noise at idle. The dealer said don't worry about it which made me worry even more.

Turns out many new cars make a rattling noise which is coming from the more sophisticated fuel injection squeezing big horsepower out of little engines. I would never have guessed.
 
I have used GOOGLE to translate error codes and suggest what to do, In fact just now my Jeep has a code that translates to "Engine did not warm up fast enough" or so it thinks (it did)
The actual code is "Coolant temperature below thermostat regulated level" or some thing like that.
Dash thermometer shows normal so I'll see the shop tomorrow since they just did an engine swap.
And by Just I mean this month.

I had another code last week (Anti-knock sensor cylinder 1 not responding) but it self cured
Google suggested a bad electrical connection.. Yes those can self fix due to vibration
That one did not light the icon and as there are multiple anti-knock sensors not a problem

This one is not a problem far as engine life is concerned but it lights the blasted icon so it can mask a serious issue.

Torque or any of the dozens of other like programs that can read the error codes very nice.
Saves me worry and saves the mechanic a bit of time on occasion as he already knows the code.
Though he will use his own scanner He knows what to expect.
 
The internet is just a gigantic library. However, instead of having to travel to a physical stick-n-brick building, browse through rows and rows of book shelves and scan one page at a time of book after book, the internet does all of that digitally and almost instantaneously. That is about the only difference between the two methods. All the information you need is at your public library tucked away in magazines, books, papers, and article. The internet is the same compilation of information, only all done with bits of one's and zero's at the speed of light.

So, now the "internet" has morphed another step forward, enabling an immediate response to any question imaginable by humans. If there is any information tucked away in a digitized information warehouse, the "internet" now call it "AI" pulls that information and then simply presents it in a simple to read, consolidated, fifth grade level reading style that anyone can now understand. AND... does it almost instantly.

It's the same information that has always existed. It's still the same information that someone else has already entered into the data bases. The information returned is ONLY as good as the information that already exists.

The problem is, there is so much information that's been uploaded into these systems, the "system" does not know which piece of information is truly valid and which is actually bogus. When information returns, no matter what the original question, it is still the responsibility of the end user to decipher that information and determine what is valid and what is bogus or irrelevant.

AI is simply a new way of presenting an internet "search engine's" results in a paragraph form. It's a tool to be used as a help, not the replacement for human wisdom.
 
Surely you have seen it all over the internet - a question is asked or a claim is made and there are dozens of conflicting responses. Opinions, in other words. An "AI" examines as many of those opinions are possible and attempts to analyze them for (1) credibility, and (2) applicability to your specific question. We don't know all the nuances of that analysis, but experience has shown that once in awhile it makes egregious mistakes and sometimes it emphasizes things that may not be totally applicable to your situation. And of course, where the inquiry is about opinion rather than verifiable fact, even the best analysis is just one more opinion.

Vehicle diagnosis via AI mostly falls into a gray area, with some hard facts and the rest a distillation of experiences from others. Some of those experiences will be flat wrong, but generally there will be enough responses examined to get a good sense of the "right answer". Not infallible, but a worthy place to place your bet.
 

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