Honda Accord Idle Vibration
Also what are the rpm's when she is shaking?
Also what are the rpm's when she is shaking?[/quote:1ef25db6bf]
Vibration is coming at about 750 or 800rpm. You know it started when i went to jiffy lube and they did this gas treatment thing, which i know i shouldn't have gotten. and ever after that the car is doing that. the good thing is that other then this low rpm problem, the car runs fine. no problems. but the rpms seem at tad bit low. thanks for all your help, plz advise.
They did not replace the fuel filter. The pick up is smooth. Because of I have a Apex II exhaust, Pace headers, and a cold air intake, I can feel "the pickup" is good. But because of the this "vibration problem" I am very dishearten. If it would improve, I can go head and change the wires and the plugs. Please advise.
Bruce, I must share this with you. (I will comment on your inquires a bit later) This morning I was running low on gas so I went to the gas station. While filling up the tank I decided to take a close look at the wires as you had suggested. And to my amazement, one of the wires, from the distributer cap was only half way in. I tried to tighten it but it wouldn't go in all the way. So I took a closer look to see that it was all corroded and stuff. I was like bingo. My gas miileage has definately dropped as well, I used to get close to 320 Miles on a full tank, now I hardly get 250. So i tried to push it all the way in but the virabation is still there. Now what do you suggest, should change the distributer cap with the wires, or should I just try replacing that one wire first? But it is amazing how you were able to diagnose this from so far away. Please advise, and as always, lots of thanks.
Bruce- This weekend i managed to find a good wire, (an old one I had- the connectors were in very good shape) I connected that one instead. And still the same issue on idle. a vibration is felt in the steering wheel and overall the car.
Can this be one of the fuel injectors (bad)
Any electrical component?
A computer chip bad?
Please advise, and thanks.
You mean the timing belt?
Suggested Repair
Verify the spark plug wires are fully seated and not corroded, and test a known-good wire if one cylinder is suspect. Because swapping the loose wire did not stop the idle vibration, check base ignition timing with a timing light after disabling the computer with the under-dash service jumper. Also consider the fuel filter, which was not replaced during the fuel treatment.
Conversation Summary
A Honda Accord with about 70,000 miles vibrates throughout the car at idle around 750-800 rpm, but runs and accelerates normally once the engine speed rises slightly. The owner reported lower fuel mileage after a fuel treatment and found one distributor wire only partly seated and corroded. Replacing that wire with a known-good wire did not change the vibration. The expert advised checking the wires, noted that idle speed was near normal, and recommended checking engine ignition timing rather than the timing belt.
