What r/MechanicAdvice keeps coming back to
Complaints raised here by more than one person. One-off posts are not included.
304 recurring problems · 2245 threads read · read since September 2026 · Reddit
Raised more than once here
Most people first.
- 63Is it worth fixing an old car when repairs cost more than it's worth?“I don’t really have the money to drop the estimated $500+ (his quote) right now, so I’m curious how long I can put this off (or if I should at all).”
- 62How to explain an intermittent car noise to a mechanic“I have a 2017 Toyota 4Runner that pops when turning and going from Drive to Reverse.”
- 60Vehicle cranks after fuel pump replacement but won't start“I replaced the fuel pump on my 06 jeep liberty 3.7l was able to drive it around for about 2 weeks no problem. I was stopped at a stop sign and when I accelerated it lost all power and went totally limp, as if someone took the key out of the ignition. It cranks but won’t turn over now, I did some troubleshooting and I think it is still fuel related.”
- 51Landlord built a fence around the AC and it broke“It went out "all of a sudden" a couple weeks ago.”
- 43Is this mechanic repair quote too high?“I just wanted to ask how urgent do you think this is and how soon should I get it done?”
- 34Why does my car make a loud rattle when starting the engine?“I have this loud rattle as I turn engine on.”
- 33How to figure out what an unfamiliar car engine noise is“recently ive been hearing this noise while idle and while driving. any advice? what could it be?”
- 30How to remove a stripped recessed retaining screw“Ive spent hours trying to remove the rear brake bleeder screw on a 2001 Ram 3500.”
- 26How to find replacement parts for discontinued hardware“Problem is this is a discontinued part. The dealership is refusing to replace it due to the only available parts being a non-OEM part.”
- 25How to clear a clogged AC condensate drain line“I want to clean the coils on the AC evaporator in my 2010 Nissan Altima, and I don't know the best way access the evaporator.”
- 24How to identify a random car part that fell off“I have no idea what they're called on rock auto. The naming seems to be different on every site. Anyone know what the name is?”
- 20Why are my brakes squeaking and shaking the floorboard?“I don’t know anything about suspension but someone told me this could be the cause of my clicking while i brake.”
- 19Is it a smart idea to buy a new car right now?“Do I take the risk?”
- 18How to figure out how much to charge for freelance work“Hey guys, i have a lady asking me to replace her front cv axle. How much would you charge for the job?”
- 18Why does my car run terribly and stutter after a long drive?“rpms stuttered and car stuttered in a way like it was gonna turn off, thats when all the lights came on”
- 17How to know which replacement part code to buy“Decided to start doing my own oil changes, but I'm having a tough time tracking down the recommended filter for my 2016 Malibu.”
- 16How to handle a mechanic who messed up brake repairs“I’ve had too many friends get caught in their scam during their time of need and without the knowledge to know CB are wolves in sheep clothing.”
- 15Why is my new dryer vibrating and buzzing?“I have an intermittent, high-pitched buzzing sound that sounds like it is coming from the engine bay area.”
- 15Why does my car stall when I come to a stop?“I have a 2016 Nissan Altima with about 135,000 miles on it. Just recently I’ve had an issue where my car has stalled when I’ve been stopped at a stop sign or red light.”
- 15How to handle random car error codes and weird driving feelings“Got these codes, the MAD sensor looks good so I’m gonna try cleaning it first.”
What this forum worries about more than the rest
How much more often a topic shows up here than across every forum we read.
brakes9.6×vehicle troubleshooting9.6×car troubleshooting9.6×transmission9.6×