What people keep running into with car repair
Complaints tagged car repair, each raised by more than one person. One-off posts are not included.
155 recurring problems · 1369 people · 21 forums we read
Raised more than once
Most people first.
- 2Turbo charge hose collapsing on accelerationThe turbo charge pipe collapses inward almost fully under high throttle, which restricts airflow and causes a sudden loss of boost. This issue triggers an amber drivetrain warning and prevents the engine from maintaining power during hard acceleration.
- 2Are my brake rotors ruined if they glow blue after bedding?Performing hard stops slightly above target speeds during a brake-in procedure can cause new rotors to glow purple-blue. This leaves drivers unsure whether the intense discoloration indicates structural damage or merely heavy thermal stress from the bedding process.
- 2Why does my steering wheel pull or turn by itself?Power steering malfunctions can cause the steering wheel to automatically jerk or pull hard in one direction while the engine is running, making it nearly impossible to steer the other way. This sudden loss of control prevents safe driving and can also cause the steering wheel to shake visibly when let go before pulling to the side.
- 2Is it better to fix a broken car infotainment screen or replace it?Dealer repairs for broken infotainment screens are often costly, uncertain, and require shipping the unit out with no guarantee of success. This leaves drivers stuck choosing between hard-to-find exact matching replacements from the same car model and year or switching to a completely different audio system.
- 2How to test a car ignition switch with a multimeterA faulty ignition switch can prevent your car from starting or failing to shut off properly. This stops electrical signals from reaching components like the starter relay, leaving you stranded or unable to kill the engine.
- 2Why does my car still pull to the side after a wheel alignment?A car continues to pull to one side even after an alignment because factory adjustments might not be enough to fix component issues like the bolts on the tire. This leaves the vehicle feeling uneven and makes it drift or swerve while driving.
- 2How to tell if a mechanic actually changed your car fluidsCar fluid looks identical before and after a service because technicians can write anything on the invoice without actually doing the work. This makes it impossible to verify if you got what you paid for or if the fluid was just partially sucked and filled.
- 2Do I need to wire brush surface rust before applying Fluid Film?You do not need to meticulously scrape or remove all surface rust before applying a lanolin-based coating like Fluid Film, as long as loose scale is brushed off. Lanolin-based sprays work by penetrating existing rust and cutting off oxygen to halt further corrosion, making extensive manual removal unnecessary unless preferred.
- 2Are parts interchangeable across different car makes and models?Finding out if a component from a donor vehicle can be swapped directly into a different make or model usually requires comparing part numbers or cross-referencing platforms by hand. Without a clear compatibility guide, it is difficult to know if parts like wiper motors or drivetrain components will bolt on without modification.
- 2How to bleed a car brake system after it runs completely dryWhen a brake system drains completely, standard gravity bleeding often leaves trapped air in the master cylinder and lines, resulting in a spongy pedal or zero brake feel. This makes it difficult to restore hydraulic pressure and leaves solo DIYers stuck without the right bleeding tools or compressor setup.
- 2Why is my car misfiring and stalling after changing spark plugs?Replacing spark plugs and ignition wires can leave a car running roughly, dropping to a very low idle and dying unless the choke is on. This happens when the underlying cause of the misfire wasn't fixed by the new parts, preventing the engine from running smoothly on its own.
- 2Why is my car hard to start after getting gas?Filling up the gas tank floods the engine with excess fuel, creating an overly rich condition that causes the car to bog down or refuse to start normally. Drivers have to resort to holding down the gas pedal while cranking to clear the extra fuel before the vehicle will finally fire up and run smoothly.
- 2New battery still showing low voltageEven when a new battery is installed and the alternator passes testing, loose cables or poor connections can prevent proper voltage from reaching the battery. This leaves vehicles dealing with persistent low voltage issues despite having replaced the major components.
- 2Can't find torque spec onlineBasic maintenance details like torque specs for oil drain plugs or intake screws are frequently missing from online searches, leaving people with no information on how tightly to reinstall parts. Without these numbers, people are forced to guess or struggle to finish routine maintenance.
- 2Why does my manual car make a squealing noise when shifting gears?A manual transmission can make a squealing or clunking noise while shifting through gears, even when the engine is turned off. This makes it difficult to pinpoint the mechanical cause, leaving drivers uncertain about whether worn engine mounts or other components need replacement.
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Topics that keep appearing on the same problems — not topics with similar names.