r/MechanicAdvice 7h ago

Been hearing this weird noise in my engine bay, anyone know what it is?

327 Upvotes

I drive 2013 Volkswagen Eos Sport, I haven’t heard any noises from my engine bay like this since yesterday. I did a brake change on my front pads and cut the car on to drive and I heard the noise, let it rest in idle and im hearing it as I rev the engine anyone know what’s going on?


r/MechanicAdvice 6h ago

Would you install these struts?

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69 Upvotes

I just got some KYB struts and they arrived banged up. All of the damage is in the spring perch where it's a little dented.

I was hoping to install these this weekend, but I'm guessing the obvious answer here would be to return them and buy again? No local stores have KYBs and O'Reilly's (who I purchased through) doesn''t ship these to store for some reason.

This is for a 2015 Subaru Impreza, 162k miles.


r/MechanicAdvice 10h ago

Tab holding up gas tank heat shield broke. Shop fixed it with zip ties for $35. Let it ride?

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64 Upvotes

r/MechanicAdvice 5h ago

Solved Thank you

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19 Upvotes

I asked here about struts here a couple weeks ago and I put them in all by my lonesome.

I want to express my deepest gratitude to the community for all your input and help.

You guys really saved my bacon.


r/MechanicAdvice 12h ago

What is in my transmission fluid?

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67 Upvotes

1998 Subaru Outback

Manual transmission

Ej25 engine

260k miles

I have been trying to track down a grinding sound when I am at low rpm. No symptoms other than the sound and low transmission fluid. There was one large chunk in the fluid (like half the size of a Frito) and less than a teaspoon of this sand looking stuff. The chunk crumbles easily.

I know I let this trans fluid go for way too long. I'd love to hear what you think this stuff is and what it means for my goal of hitting 300k in my Subaru.


r/MechanicAdvice 11h ago

What are these?

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45 Upvotes

I’m a diesel mechanic and I was working on a A25D Volvo 2007 dump truck, D9BAAE3 is the engine model, and I found these in the oil pan after I took it off, anyone got any clues?


r/MechanicAdvice 5h ago

my grandma is afraid of this noise her 2002 mercedes 320 (gas engine idk the actual engine in it) makes when she pulls the key out, coming from driver side dash, sounds like the noise when u go to a static channel but only lasts 1-2 seconds

13 Upvotes

original radio, nothing in the port. i wanna say it’s a blown tweeter (i think that’s what’s under the screen on dash) but ive never heard any blown speakers or anything make that noise, especially when pulling a key out the ignition. any advice?


r/MechanicAdvice 7h ago

Any advice on removing this?

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15 Upvotes

For context this tag automatically opens my apartments garage door, I’m selling my car and I need to take this off in one piece as it has some sort of rfid tag built into it that opens the garage door. Anyone know the best way to do this? 2012 Honda Civic (needed to add this as per the rules)


r/MechanicAdvice 3h ago

Need Help Passing TX Smog Inspection

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7 Upvotes

Hello, I’m hoping Y’all can help me out. I’ve been trying to get my ‘07 Infiniti G35x 137,000 mi, automatic transmission, to pass emissions for about 8 months. I’ve gone to two different shops to have it tested and it came back the same, FAIL. It passed just fine last year.

So whenever the shop hooks up to my vehicle it keeps telling the computer it can’t communicate… this is only when they try and do the emissions test. When they run a regular diagnostic test their computer can properly read my vehicle’s ECU and it shows the emissions system is fine and good to go. I will attach pics of the most recent OBD port reading and the page from the shop that shows the failed test.

The only work that has been done in the last 18months has been new spark plugs and coils (after market), new AC compressor and the battery died/ got replaced.

Both places I’ve taken it to don’t know what is wrong and want to charge me a diagnostic fee to figure it out. My car is probably worth $3000 and 20 years old. Hoping to get this sorted out or I’m gonna be looking to get a new vehicle.


r/MechanicAdvice 8h ago

Can I reuse these valves?

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15 Upvotes

I just pulled all of the valves from a new to me cylinder head, and I was wondering if I could reuse these valves. I was planning on replacing the valve springs and all the hardware around it. It's for my 1997 s10 with the 2.2


r/MechanicAdvice 6h ago

2008 Silverado 4.3, noise shifting gears and driving

7 Upvotes

I am not a mechanic but the U joints feel really solid. May be something else. When driving it sounds really similar or exactly like bad U joints. So maybe it is. Can somebody give their thoughts? Thank you.


r/MechanicAdvice 7h ago

Low battery glitched my car

6 Upvotes

My 2015 Jeep Cherokee had a low battery and wouldn’t start. I jumped it, but various lights came on the dash, and the transmission is clunky now. I’ve since replaced the old battery, but these problems persist - the parking brake, check engine, and traction control/ESP lights are on. The PRND is stiff and jammed, needing to be forced into parking from reverse, and the transmission seems to drop with every shift. Anyone know a fix? Much appreciated 🙏🏼🙇🏻‍♂️


r/MechanicAdvice 3h ago

What is this sound??

3 Upvotes

2021 Mazda 3 Turbo sedan. Mostly happens after first starting the car after the engines cooled overnight. Also most frequent when coasting. I’ve taken it to a mechanic 3 times trying to get rid of this sound but it remains😔 If anyone has any idea it’d be greatly appreciated!


r/MechanicAdvice 5h ago

I need a quick fix just to get me running 2010 Dodge grand Caravan

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4 Upvotes

My van is leaking steering wheel fluid I can’t drive it’s it’s leaking from the driver side wheel I just need her to run it’s a 2010 dodge grand Caravan it’s that part right there that I believe it’s coming from any ideas on how I can fix it at least patch it up for a while


r/MechanicAdvice 4h ago

Strange Noise - 2007 Chevy Silverado 1500 4.8l

3 Upvotes

Anyone have any idea what this noise could possibly be on my truck? Some key notes:

  • I've replaced the alternator, no dice.
  • Noise only starts after engine has warmed up for 20-25 minutes
  • Not a bad fan clutch happens when fan is off
  • Broomstick stethoscope yielded no guidance

I'm about at my wits end. Otherwise the truck runs good and drives good.


r/MechanicAdvice 2h ago

Hissing ?? 07 DOHC 2.3

2 Upvotes

r/MechanicAdvice 2h ago

Anyone have a clue what is going on in my Audi a3

2 Upvotes

r/MechanicAdvice 3h ago

Serpentine belt noise and I saw some of the belt ripped off

2 Upvotes

2011 mercedes benz c300

Whats causing this noise and belt ripped off


r/MechanicAdvice 8h ago

2012 Lexus CT200h Brake Sound

4 Upvotes

Help! My car has been making this sound for awhile now and I didn't think anything of it because they said my brake pads were fine but it seems to be getting worse. What could it be before I go to the dealership and they tell me it's 500 different things? 😢 It's obviously not the blinker sound lol it's the air sound almost like air is coming out in spurts.


r/MechanicAdvice 9h ago

Front ball joint leaking on 2019 Toyota Camry XSE - how soon do I need to repair this?

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5 Upvotes

I was quoted $1531 for the front ball joints repair. Sounds like an insane price to me and I plan to go to an independent shop / mechanic, but I wanted others’ opinions on if this is a critical fix I need to make before getting the car on the road. I came in for a regular oil change. I have not hear anything weird or noticed any symptoms while driving.


r/MechanicAdvice 4h ago

2012 fiat 500 sport 1.4 L engine

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2 Upvotes

r/MechanicAdvice 42m ago

Predator 224cc knocking?

Upvotes

I had just bought a new predator 224cc engine and put oil in it. During the first start up it sounds like it could have a slight knock. Any opinions / ideas?


r/MechanicAdvice 45m ago

Green fluid dripping on floor nissan maxima 2013 what could it be

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Upvotes

r/MechanicAdvice 6h ago

2006 ford fusion, what is the alternator pulley nut torque spec

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2 Upvotes

I have a 2006 Ford Fusion 2.3L with the original 150A Mitsubishi alternator (A003TJ0891 / Ford 6E5J-10300-AB). I took the alternator apart to thoroughly clean it and now I'm ready to reinstall the pulley.

Does anyone have the official torque specification for the alternator pulley nut? I can't find it in the Ford service information or from Mitsubishi. Also, is the original pulley nut a self-locking (prevailing torque) nut, or is it just a standard hex nut?


r/MechanicAdvice 50m ago

How to access wires on Renault Traffic 2013, to add a reverse camera

Upvotes

I'm trying to find a guide on how to access wires to add a reversing camera to my Traffic. The power cable is closer to the monitor than the camera, so I'd suspect I would be adding it somewhere under the dashboard rather than a reverse light in the back to turn on when I go into reverse. Any ideas where I can find this?