Toyota 4Runner Engine Problems by Symptom
Get to the root of your engine's leaks, noises, misfires, and performance issues with out step-by-step diagnostics. They're full of information supported by the Toyota service manuals and supported by the global 4Runner community. Fix the problems triggering your check engine light, by doing it yourself with our help.
Why Won't My Truck Start?
Do you hate when your vehicle will not start? Your Toyota should always be dependable.
Why is My Battery Not Charging?
Is your car leaving you stranded?
Why is My Engine Misfiring?
Is your 4Runner embarrassing you in front of your friends?
Engine Performance Diagnostic Guide
Did your 4Runner stop impressing you?