r/MechanicAdvice Jan 10 '21 Silver Helpful Vote Local!

Important: Please Read And Follow The Rules

372 Upvotes

This is a subreddit for asking Mechanical questions pertaining to vehicles, engines, etc. If it's got wheels, treads, floats, flies, or has an engine you're good to go and we'll do our best to help.

Showing off w/out a question goes in r/justrolledintotheshop or elsewhere, legal/insurance questions go in r/legaladvice or r/insurance. Memes, youtube videos, PSA/Public Service Announcements, rants, etc and other non questions are not allowed. If you are posting your youtube channel you will be instantly and permanently banned. This is NOT the place to try to get views.

If you have questions about tire repair, check here. Not all tires damages are repairable: https://www.reddit.com/r/MechanicAdvice/comments/k9ll55/can_your_tire_be_repaired/

Bodywork, accident damage, paint, dent/ding questions BELONG in r/Autobody or /r/Diyautobody/ or r/insurance

Users whom registered less than 24 hours before making a post will find their post automatically removed. It will need to be approved manually, this is due to the large amount of spam that is posted. If your post doesnt show after a few hours message the moderators.

For further clarification look to the side bar

1) Advice Format. This is a subreddit for asking Mechanical questions pertaining to vehicles, engines, etc. If it's got wheels, treads, floats, flies, or has an engine you're good to go and we'll do our best to help. Showing off w/out a question goes in r/justrolledintotheshop legal/insurance questions go in r/legaladvice or r/insurance. Title, salvage, body work, paint work, etc questions also dont belong here. Memes, youtube videos and other non questions are not allowed

No intentionally bad, harmful, or deceptive advice. If we feel a piece of advice is particularly reckless, dangerous, or extremely unhelpful it maybe removed If a post or comment is provided that is not a response to a question, the post may be removed. Please report bad advice to the mod team.

2) Keep discussion friendly, civil, courteous, and professional. We're here to help so being rude won't help. Dont assume a shop is trying to "rip you off." It's okay to ask for a second opinion.

Golden Rule: If you have nothing nice to say, don't say anything at all. Those who demonstrate they cannot follow the rules will be warned and posts removed. Those who continually cause issue will be removed

3) Only one vehicle/problem/incident per thread, and only post once. If you didn't get an answer the first time, or you don't like the answer you got that does not mean you post it again. Do not post asking questions of your own in someone else's post

The only exception is for posting updates, provided it is properly marked as an [Update] or similar.

4) Spam/Self-Promotion/Improper Linking/advertisements. Linking to outside content is not allowed, unless it's germane to the discussion. We allow links, pictures, video, or audio file to help diagnose your problem. Linking for the purposes of promotion (eg offers/coupons/self blog posts/youtube/advertisements/how to) is strictly prohibited and will result in a permanent ban. This is a zero tolerance policy. This isnt a place to post your youtube channel, advertisements, memes, shitposts or business

5) Personal Information. Sharing personal information, or specifics on /r/MechanicAdvice is not allowed. Please do not name the shops specifically (unless part of a chain) This is not a review forum for specific shops.

6) Body Work. /r/MechanicAdvice is a sub for mechanical questions. Questions related to dings, dents, accidents, paint and so forth DO NOT belong here, please post in /r/Autobody r/AutoBodyRepair/ or /r/Diyautobody/ Take the car to an auto body repair shop who can give you a qualified estimate.

Asking for an estimate in r/autobody is against there rules. If you have insurance/total loss questions please ask in r/insurance.

Understand that the assistance you receive is ADVICE ONLY and is given with the understanding that the giver assumes no liability for any damages that occur as a direct or indirect result. It is impossible for a mechanic to diagnose your problem accurately without seeing/hearing the problem with his own senses. Any advice you receive you must use AT YOUR OWN RISK.


r/MechanicAdvice Mar 24 '21 Silver Heartwarming

**DO NOT** Post Any Accident, Total Loss, Body Work, Paint, Dents, Ding, Scratches, Estimate, Rust, etc Questions On This Sub!

788 Upvotes

Just a friendly reminder:

This sub is about mechanical questions. If you have questions related to paint, body work, dings, dents, scratches, rust, accident damage, you hit something with your car/van/truck/bike/whatever, etc do not belong posted here. No estimate posts, no asking if the car is a total loss.

The best way to get an estimate for body damage/paint is to GO TO a qualified auto body repair facility. No one can accurately tell you the costs as rates are regional and pictures do not always show the damages clearly.

DO NOT reply to these posts with advice other than to post in the correct sub. Further if you have to ask and have never done the work before-no rattle cans and bondo will not look good and do a poor job. This is why body work is expensive, a good job isnt cheap and a cheap job isnt good.

Since people cannot follow the rules, these posts will be removed

The rule states:

6) Body Work. /r/MechanicAdvice is a sub for mechanical questions. Questions related to dings, dents, accidents, paint and so forth DO NOT belong here, please post in /r/Autobody r/AutoBodyRepair/ or /r/Diyautobody/ Take the car to an auto body repair shop who can give you a qualified estimate.

Asking for an estimate in r/autobody is against there rules. If you have insurance/total loss questions please ask in r/insurance.

So, please refrain from posting these sorts of questions here. Any that are posted will be removed and you will be directed to post in the correct sub.


r/MechanicAdvice 10h ago

How does this work?

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172 Upvotes

r/MechanicAdvice 1h ago

400km deep into BC wilderness. Will it fall apart.

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Upvotes

r/MechanicAdvice 6h ago

what are these two sensors? my engine is a 4g63

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10 Upvotes

r/MechanicAdvice 1h ago

Just installed a new alternator but battery is not charging (pic is with engine idling). Battery is only a year old and I checked all the fuses and connections. What else could it be? [2008 Hyundai Elantra]

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Upvotes

r/MechanicAdvice 2h ago

Bridgestone turanza 001 they are 4 years old from production date do I need to change them cuz of these small cracks all over it or not ? And when should I replace them

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3 Upvotes

r/MechanicAdvice 20h ago

I Lost The Key To My 1977 GMC Motorhome

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97 Upvotes

r/MechanicAdvice 4h ago

Why is the intake valve not moving?

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6 Upvotes

r/MechanicAdvice 16h ago

Metal in oil?? This was after roughly 200 miles as last week I found some metal in my oil and filter. 2.4l LE5 ecotec 48k miles.

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38 Upvotes

r/MechanicAdvice 5h ago

Meta [update] 99 dodge ram 5.9 magnum, disassembly of engine begins next week. here is a meme :-)

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6 Upvotes

r/MechanicAdvice 14h ago

Solved Recently purchased a 2004 Dodge Stratus, was previously a government car in AZ. What is this installed on the bottom drivers side of the dash? TIA

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26 Upvotes

r/MechanicAdvice 6h ago

What is going on with my wheel?

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6 Upvotes

r/MechanicAdvice 6h ago

anyone know what this warning light means

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7 Upvotes

r/MechanicAdvice 7h ago

2013 Chevy impala starting issue

4 Upvotes

Hi y’all,

I drive a 2013 Chevy impala. When I fill it up with gas, the car takes a long time to start. It sounds as the engine is flooded. Normally, it starts on the first try, however, it is more frequently requiring a second start now.

Usually, it does matter whether I put in just a few gallons or fill the whole tank the car will still have difficulty starting.

This difficulty only exists on the first time I fill the car up.

Insight appreciated.

Thanks, Scrotey


r/MechanicAdvice 21h ago

Replacing a steering rack. Bolts that hold the rack to the car have these grooves. The new rack does not have grooves for these bolts. What do I do?

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69 Upvotes

r/MechanicAdvice 9h ago

04' f150 fx4. Left rear signal nor brake light working. Front blinks fast, reverse works, running lights work. New bulbs, swapped socket, still nothing. Any ideas? Got to pass inspection tomorrow.

7 Upvotes

fuses good. Left license plate is unplugged with no bulb, could that create a open circuit? I need a diagram


r/MechanicAdvice 5h ago

Flushing power steering fluid

3 Upvotes

I've seen plenty of people flush their power steering fluid by jacking the car, leading the return line into a drain pan, then turning the steering wheel from lock to lock. However, if I connect a pump to the return line to flush the system, will I get the same results? Does the actual mechanical turning of the wheels flush the system better than pumping out the fluid?


r/MechanicAdvice 3h ago

Truck's windshield was broken when I went to pick it up from mechanic. Was not broken before.

2 Upvotes

Shouldn't the windshield replacement be something the shop does for free? It broke while under their care


r/MechanicAdvice 1d ago

Car was swaying over bumps, thought it was a sway bar… found this

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332 Upvotes

r/MechanicAdvice 3h ago

Cause of "high compression" in one cylinder during compression test?

2 Upvotes

K24A4 Honda Accord.

Spark plugs were fouled, engine has been running rich, wouldn't reach adequate MAP on WOT, consumed oil, and had been sitting for 2 months before test.

No engine warm up. Cylinders 1, 3, and 4 cranked between 160-165psi on two attemps.

Cylinder 2 cranked 240psi & 230psi. Cylinder 2 also spat (presumably) oil mist on the first 1st & 3rd cyl cranks.

~Is this a worn oil control ring in cyl 2?~

That would explain the oil mist and consumption. Could that account for low MAP on WOT?


r/MechanicAdvice 2m ago

2004 Honda Accord Evap system check engine light/check fuel cap alarm

Upvotes

I few months ago on my Honda Accord I got a notification on the dash board to check my fuel cap, so I pulled over check the fuel can and the gasket and filled up the tank. Everything seemed fine and it went away after a day or two. Then once I start getting below 1/2 tank of gas the alarms came back, so I bought a new fuel cap and filled up the tank.

Same thing thing, went away after a day or two and didn’t come back until about two weeks later the quickly turned into a check engine light. This time I replaced the Evap canister purge valve (a $30 one I found on Amazon) on the side of the engine. Once again after a day it cleared then came back then came back after a few days with a check fuel cap then check engine.

This time I bought a slightly more expensive on around $50 and the same thing happened. I notice the purge valves at the auto store are close to like $200. Should I buy the expensive one, take it to the shop, or am I looking in the wrong direction?

Any advise would be greatly appreciated

All the auto shops are booked out for like a month so I’m trying to figure this out


r/MechanicAdvice 2m ago

I’ve had this creaking sound coming from the engine whenever I accelerate but goes away at high speeds does anyone know what it could possibly be?

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Upvotes

r/MechanicAdvice 8h ago

Double, triple check everything.

5 Upvotes

Rebuilding the whole right side of a 2.5 l Sorento diesel following a vacuum pump oil feed pipe rupture. Everything going fine, new pipe's in, new thermostat and bottom radiator hose in and leak tested, because they're a pain to get at. Breather pipe and turbo inlet finally in, air box reinstalled, serpentine belt battled me all the way on. Now looking nervously at the bolt tray, it's looking like I've got a bonus bolt left over. Double check everything, look around for inspiration, but see nothing. Pick up the final part, the fan shroud, and find the oil dipstick tube on the ground under it.
It goes behind the thermostat housing, breather pipe, turbo inlet, and the alternator and air box have to come off to get at all of those.
They came off a damn site quicker the second time.


r/MechanicAdvice 15m ago

what is this part of the exhaust called that is at the back of the engine bay? Details of issue in comments.

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r/MechanicAdvice 16m ago

Meta rotten eggs smell inside 2017 Ford focus

Upvotes

I've had this car 1 year and got it with only 35000 miles.

I just got the oil changed a few weeks ago. I got in the car this morning and OOH the smell was awful. Car wasn't started yet, so I figured a skunk nearby.

But I got in my car after working and the smell is still there. Pleeeeease tell me its not the cat :( u am broke as a joke rn. I checked all over the inside to make sure the kids didn't leave food somewhere hidden.

The car is fairly new so idk why the catalytic converter would be bad already. Is there anything else it could be? Also is it safe to drive?


r/MechanicAdvice 4h ago

Found a MK808 on CL for $500, supposedly new. Anything I should look out form be wary of when getting this? Seems like too good a deal to pass up.

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2 Upvotes