So I need some help. I have a 2001 4runner. It started running really rough. I took it to the auto parts store and the diagnostic said it was an issue with the one and four cylinder. I changed the spark plugs and the coil. It is running much better but anytime I stop at a light it nearly shuts off and I have to rev it up to prevent it from stalling out. I took it back to the store and the diagnostic still says its the four cylinder. Any guesses on what the problem is and what I should try next?
2001 4runner issue - please help
- Thread starter rkn4569
- Start date
Register to hide this ad
tyr0981
New member
either a fuel delivery problem (injector) to that cylinder, or major issues with the cylinder. You should run a compression test on that cylinder to rule out loss of compression (easiest and cheap test) if good compression, move the #4 injector to another cylinder and see if the problem follows it, if yes, replace injector.
good luck!
good luck!