/r/MechanicAdvice

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This is more than a car repair forum!

MECHANIC CHAT:

Join the /r/MechanicAdvice IRC for instant conversations with other users on libera.chat irc network.

PART TRADING:

If you have parts you would like to trade please do so at r/partIt

If possible posts must include the make/model/year in the title or body of the post. If that isn't available, provide all you know and explain why.

All bodywork, accident damage, paint, dent/ding questions. BELONG in r/Autobody or /r/Diyautobody/ Do not ask for an estimate there as it is against the subs rules. Questions of this nature will be removed


RULES

Please Take a Moment To Read The Rules Before Posting

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.


RIP-OFFS, SCAMS, & SECOND OPINIONS

You may ask a second opinion on a quote/repair from a shop. However, please observe rule #1 when asking for a second opinion. It is considered rude to ask, “Is the shop trying to fleece/rip me off?” You wouldn’t ask “Why are all cops pigs?” on /r/AskLeo, ask about Creationism on /r/AskScience, or talk about vaccines causing autism on /r/AskDocs.

Generally there is a good reason why a repair costs what it does. We are more than happy to help you figure out why a shop wants to charge you for a repair, and we will tell you if it is unusually high. We are also happy to advise on how you can save money at the shop. Please read the sticky post on the subject for details.


IMPORTANT

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.


OUR PARTNER SUBREDDITS:

*r/Diyautobody * /r/Autobody * /r/Bigroad * /r/RandomActsOfMechanics * /r/howsmytire * /r/PartIt * /r/Justrolledintotheshop * /r/ProjectCar * /r/UserCars * /r/AutomotiveTraining * /r/Hookit * /r/Trucks * /r/AutoDetailing * /r/ToolPorn * /r/DieselTechs * /r/TechniciansAdvice * /r/aviationmaintenance * /r/howsmytire

/r/MechanicAdvice

1,329,806 Subscribers

1

My car is making this noise and white almost clear smoke is coming from under the hood any idea what’s wrong with it?

2 Comments
2024/05/12
02:59 UTC

1

IF THE RECOMMENDED LUG NUT TORQUE IS 76 FT/LBS FOR A 2014 RAV4 CAN I TIGHTEN IT TO AN EVEN 80FT/LBS?

2 Comments
2024/05/12
02:58 UTC

1

Seals injectors 1.6 TDCI

Have had problem with the seals injectors since November and drove almost 10000km since then. Tow mechanics refused to fix it describing the job as a “headache” and one said he could possibly fix it for 500 €. Ford Focus 1.6 TDCI 2009.

Is it worth to fix it or just buy a new car, other than that the cars moves fine.

The video is from November when I first discovered the problem.

1 Comment
2024/05/12
02:50 UTC

2

Any idea why my alternator would burn out?

This alternator and battery are 6 months old, replaced the battery when I replaced the alternator.

Driving today the battery light came on so I pulled over, and tried to see what could be the problem. (Last alternator would smoke and the coils would fly little flames not sparks. Anyways, pulled the cover off of this red (assuming positive/power line) and it was all ashy.

Could the wire be the cause of why I’m going through alternators?

Had another one replaced 2 years ago, then that one went out 6 months ago and now this..

It’s an 08 ford mustang base

1 Comment
2024/05/12
02:49 UTC

1

Can anyone tell me what this is?

I’m trying to solve a small evap leak on a 2016 kia optima 2.4. Can someone tell me what that white thing is spliced into the hose going to the purge valve? (Purge is in lower right of picture).

2 Comments
2024/05/12
02:37 UTC

2

Which would you use for a temporary fix?

21 Comments
2024/05/12
02:43 UTC

2

FAILED INSPECTION

So I failed my inspection, frame rot and the emissions tests were incomplete, “not ready”. Wonder if the bank 2 sensor 2 is my issue by the look of that graph. No codes. This is a 2011 Chevy Silverado 1500

2 Comments
2024/05/12
02:37 UTC

1

Code p1524 on 2010 jeep grand cherokee

I just bought the car today. I test drove it and scanned it at the dealership. There were some transfer case codes for actuator or something and wouldnt shift into 4×4 low but i figured its the actuator. When i got home i drove it a little hard around my neighborhood and just as i pulled into the garage the check engine light came on i scanned the jeep got p1524.

I read somwhere that if you use a cheap oil filter it can set the code for oil pressure. Im assuming they changed the oil and filter at the dealership using cheap aftermarket parts. Any advice on what i should do uf changing the oil and filter doesnt fix the issue would be much appreciated

TLDR: any common fixes for 2010 jeep grand cherokee 5.7l hemi code p1524?

1 Comment
2024/05/12
02:35 UTC

1

oil pressure gauge briefly bobs

hi all,

huge thanks in advance for any clues. I drive a 2005 Ford Econoline 350E . My oil pressure has a recurring issue, while driving (engine hot, engine cold, uphill, downhill, braking, accelerating, seems to be no pattern.) the Check Gauges light will come on and the oil pressure will briefly bob down to zero then bounce right back up to normal. Six / seven months ago this was a recurring issue for a few weeks, I changed the oil the problem went away until yesterday. It’s not burning oil, the levels are fine. It is about due for another change - but not very soon.

One other thing is the check engine light has been throwing code 420 - bank 1 cat converter - for over a year now, so curious if they could be related.

I replaced the fuel filter a month ago so i know it’s it not that at least

Thank you!?

1 Comment
2024/05/12
02:24 UTC

1

Just bought a 24 year old car...

Howdy y'all. I just bought a 2000 Honda Civic DX sedan 1.6 ltr. It has 210,000 miles on it. But it's a one owner car. Used to belong to the wife of our mechanic. The question I have is... What should I lookout for in terms of major issues? I've never owned a Honda before and I've heard mixed stories about them. But I test drove it and it runs like it's brand new so far. Any advice would be great.

2 Comments
2024/05/12
01:44 UTC

1

Need help with oil leak into engine of car

For the record (though I’m sure you will infer) I am young and stupid and know absolutely NOTHING about cars. I have a 2014 BMW 328i.

Yesterday a pop up came up onto my dashboard screen saying add 1 qt oil as soon as possible. I popped the hood and found the cap with the oil symbol on it and poured a full qt of oil in and shut it.

Today I noticed a strange gas-like smell in my car and drove it maybe 10-15 miles before stopping and checking the engine. Oil seemed to be leaking out from some unknown source and had spread all over tons of shit and was smoking a bit, which was presumably causing the odor.

I obviously left my car where it was and didn’t start or drive it anymore. I don’t know what caused this problem or how serious or concerning it is, but I was told to get it towed to a mechanic shop.

Do I need to get it towed? Is it possible to drive it to the shop? Is my car absolutely screwed and totaled? Did some user error on my part likely cause this? What are y’all’s thoughts?

1 Comment
2024/05/12
02:04 UTC

2

Coolant Leak?

Hey guys, mechanic in town is closed because it’s sunday so I thought I‘m just gonna ask for some thoughts because I really haven’t got a lot of knowledge in terms of car mechanics. I bought this 2008 Subaru Forester on Tuesday and yesterday the indicator lamp popped up and today I see this under the car so I guess it’s the coolant that’s leaking. What could be the reason for this and what would be the most pricy issue…?

2 Comments
2024/05/12
02:03 UTC

1

Stripped the oil pan on my D15b2, what should I do?

Hello everyone, I attempted to do an oil change on my own and I removed everything however when I was putting the bolt back in the pan I tightened it a bit too much and now it won't tighten.

I can remove the bolt without issues but if I attempt to tighten it, it loosens itself. I did some quick research and found out that I could use a bigger bolt to make new threads, however seeing as how I messed up something simple I don't think I can do it.

The bolt said M14 1.5 and the bolt head is 17mm. Should I have a professional install a new pan/fix it or should I take another DIY risk?

1 Comment
2024/05/12
01:54 UTC

1

Tried to open throttle body

I seen multiple videos of them turning the engine on but not completely on while pressing down on the gas pedal and the throttle plate opens completely.. I tried the same method on my car but the throttle plates barely opens. I just wonder is it something wrong with my throttle bottle? The reason I checked in the first place was because I am getting a very noticeable hesitation while accelerating. This is a 2022 Hyundai sonata 2.5L..

1 Comment
2024/05/12
01:46 UTC

2

What is this noise?

4 Comments
2024/05/12
01:46 UTC

2

Rough Idle On R or D

My 2014 kia forte 2014 1.8l has been idling rough when put into reverse or drive while breaking. Sudden Rpm drops and car stutters. However drives pretty normal when it isn't stopped. Changed the spark plugs recently. Could that be the problem?

2 Comments
2024/05/12
01:43 UTC

1

Hey guy's i have a question i whas puting on my clutch when somehow i manegt to brake clucth hub bolt hole i put on the rest and tryd clutch and it work normaly so i dont know if its okey like that or shoud ingrt new clutch hub (sorry for my bad english its not my first leanguage)

0 Comments
2024/05/11
20:42 UTC

1

Transmission solenoids

the transmission on our 2007 toyota rav4 (220,000 miles) worked fine until our son ran over an object and punctured the transmission pan. he drove it home after running over the object. 30 minute drive. got home with no problems. gears worked fine until all the transmission fluid ran out. now, shifter goes into gear but the transmission doesn't engage. dealer says they tested the solenoids and none are responding so we need a new transmission. that seems excessive. can a puncture to the transmission pan cause all the solenoids to fail?

0 Comments
2024/05/11
20:45 UTC

1

Ebay seller states 08 cobalt seatbelt retractors lock up until they’re reinstalled; is this true?

I recently bought a driver-side seatbelt retractor from ebay for a 2008 chevy cobalt. I bought it because the one my sibling has in their car was locked up. Whenever the ebay replacement came I quickly discovered it has the same issue. While waiting for the seller to respond to my complaint, I found one cheaper from a different ebay seller. This time I asked the new seller if the retractor was locked up and he said all the retractors lock up until they’re reinstalled. I thought the retractor strictly had a mechanical function. Can anyone verify if what new seller id saying?

TLDR; ebay seller sold me a locked up seatbelt retractor. Found a different listing for the retractor and asked new seller if it’s locked up. New seller said they all lock up until they’re installed. Can anyone verify if that’s true?

1 Comment
2024/05/11
21:43 UTC

1

Power steering stabilitytrak issues.

I took my car to Chevrolet dealership last week to get new gasket valve cover. When I picked it up my power steering was acting up got locked and now my car isn’t accelerating after being at a stop. I have Chevy Cruze 2015. What do you think caused this? They kept telling me my car won’t turn it that’s it’s something with the computer they couldn’t even help me.

1 Comment
2024/05/12
01:37 UTC

2

2000 RAV4 rough idle or trans slip?

Having this idle issue where when ever I'm in Drive or reverse, the first gear has a weird shudder when I'm at a complete stop or the first little bit of acceleration. Does still happen in neutral and park but not the the same degree. Tends to worsen when AC is on. No Engine Code. I have changed the spark plugs, Cleaned the EGR valve and throttle body, inspected intake for any possible blockage. Used seafoam intake cleaner to see if it would lessen, but still nothing. I don't suspect torque converter as changing the spark plugs did lessen the severity. Going to do an oil change and check for any obvious damage or vacuum leaks.

Any idea what it could be?

0 Comments
2024/05/11
21:49 UTC

1

Need help finding section of brakeline

If anyone could dedicate some time to provide me with a source of brakeline I need as I can't find it myself. 03 Durango 4.7 4wd

2 Comments
2024/05/11
22:52 UTC

1

Mechanic replaced alternator. Didn’t fix my problem.

2012 Honda Civic 200k miles.

Intermittent no start non crank. Happens randomly and finally got it on video. Will occasionally have this issue where car refuses to start on first, sometimes second try. Brought it to a mechanic who told me my alternator tested bad so I had it replaced. Didn’t fix my problem. This is a a bad electrical connection, right? I’m not sure why the mechanic couldn’t diagnose this.

Just want to be able to communicate to the mechanic what the problem is so he can diagnose it and fix it.

4 Comments
2024/05/12
01:35 UTC

1

Oil level sitting right at the Low line, good for another few weeks?

Car: 2013 Kia Optima.

Basically the title. I warmed up the engine, tried to park on as flat of a surface as possible an let it cool down for a bit before checking the level.

The level is right at the Low line, would it be good for a few more weeks? All the auto shops are crazy busy right now and that's the earliest I can book at a good shop.

I last got my oil changed on June 20, 2023 so almost a full year ago with synthetic blend, still about 600 km away from the mechanics "change oil mileage".

I'm not sure if the car loses oil over time or not but if it does, is it bad if it goes under Low for a bit?

I have looked this up on reddit but mostly I can only find posts about oil level being extremely and obviously too low, or being over filled. But not much about it being just under Low.

I would love some advice, thank you!

2 Comments
2024/05/11
23:33 UTC

1

2015 Buick encore 102,545 making hissing sound when pressing brake pedal. What is the issue?

1 Comment
2024/05/11
23:48 UTC

1

BMW 335i - money shifted. Crankshaft bolt became loose.

Hey guys, I am trying to understand the relation between the crankshaft bolt, the crankshaft, and timing.

My automatic 2011 BMW 335i had a transmission failure and decided to downshift to 2nd gear at 85 MPH, the rpm’s went to heaven, a second later the engine turned off, it would not start, would just click. I didn’t hear any bad noises or anything when the engine shut off. I did smell a faint burning smell but it seemed like it was coming from the trans.

I tried to turn the motor over by putting a wrench on the 24MM harmonic balancer bolt which I believe is the same as the crankshaft bolt and it was completely loose, not even finger tight. This bolt should be torqued to over 250 FT/LB’s! I tightened it to maybe 50-60 FT/LB’s which should be enough to turn the motor over but it wouldn’t budge, it would just keep tightening the bolt. Yes it was in neutral.

However I did leave the wrench on the bolt, hit the starter, and the wrench did move maybe 1/2 an inch meaning the engine isn’t 100% seized but just very stuck.

My question mainly refers to the understanding of how this happened. What could have become damaged that would have made the crankshaft bolt back itself out? Obviously my car must be out of timing now, but that would just be ignition timing, not cam timing, right? Obviously there could have been valve float & valve damage too, but the crankshaft doesn’t have any relation to the cam timing right?

Does anyone have any insight here? Is it possible my car is just out of time? Or does the fact that the bolt was completely loose mean my engine is totaled?

0 Comments
2024/05/11
23:49 UTC

1

2006 Mazda 3 Strut Replacement -LCA Issue

I’m currently replacing the struts in my Mazda 3, the drivers side went well with no issues however getting the passenger side strut out was tricky but it eventually came out.

When attempting to install the new strut the lower control arm is too high and I am unable to get it to low enough to seat the strut into the knuckle.

I noticed a potential issue with the LCA hitting the (frame?) of the car, preventing it from going any lower.

Any advice would be much appreciated.

1 Comment
2024/05/12
01:34 UTC

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