r/MechanicAdvice

2.1M members
r/MechanicAdvice is a subreddit with 2.1M members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses noise, struggle, engine, mechanic, and brake, and they frequently recommend/review tool brand, obd2 scanner, and impact wrench.
This is more than a car repair forum! Please read and follow the posting rules listed in the right hand sidebar.

Popular Themes in r/MechanicAdvice

#1
Advice Requests
: "Cant remove stuck axel in hub"
53 posts
#2
Solution Requests
: "My car was in this flooding for about an hour. Do I need to worry about starting my car to move somewhere I can vacuum out the floor?"
14 posts
#3
Pain & Anger
: "I give up."
2 posts

Popular Topics in r/MechanicAdvice

#1

Noise

: "Noise during rev BMW E92 328i n52"
43 posts
#2

Struggle

20 posts
#3

Engine

: "Volvo V50 Engine Replacement"
12 posts
#4

Mechanic

10 posts
#5

Brake

10 posts
#6

Sound

: "crunching Sound at the end of braking?"
8 posts
#7

Ac

7 posts
#8

Starting

6 posts
#9

Transmission

: "Bought a 2008 Honda CRV off a friend and it has 175k miles with no Transmission service ever, is it too late to start now?"
6 posts
#10

Oil

5 posts

Products Discussed in r/MechanicAdvice

Tool Brand

117 reviews
#1
Craftsman
4.5 from 17 reviews
#2
Gearwrench
4.1 from 14 reviews
#3
Harbor Freight
3.9 from 13 reviews

Obd2 Scanner

38 reviews
#1
Autel
4.1 from 7 reviews
#2
BlueDriver
3.7 from 3 reviews
#3
Xtool
5.0 from 2 reviews

Impact Wrench

33 reviews
#1
Milwaukee
4.8 from 19 reviews
#2
Ryobi
4.3 from 4 reviews
#3
Ridgid
4.0 from 1 review

Flair Used in r/MechanicAdvice

#1
Solved
: "Cant remove stuck axel in hub"
4 posts
#2
help
: "My dad's car doesn't seem to recognize its key, and he can't start it."
1 post

Member Growth in r/MechanicAdvice

Yearly
+283k members(15.8%)

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About

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Last updated: July 20, 2026