About a month and a half ago, my Buick was running rough. Initially it started to struggle for gas at about a half a tank of fuel. It would run okay until the halfway mark. My mechanic, who has been in business for 48 years, replaced the fuel pump. This guy is aces, so I trust him.
Since then, the problem has gotten worse.
It seems to run worse in the heat of the day. The engine will cut out, sputter, otherwise struggle for gas, like it is running really lean. When I have taken it into the shop, it hasn't run bad long enough for them to get any kind of codes or to zero in on the problem.
In the cool of the evening, or on cool, moist days it runs like a champ. Generally though, after about fifteen minutes of running, it will start to cut-out, then resume good running, then about ten minutes later will sputter
I will pull off the Interstate and let idle for about five to seven minutes and it seems to clear up good enough to get me the rest of the way to work, about another ten minute drive.
I read on another "help" site that it could be a bad coil. I am going to suggest this to my mechanic this week.
Have you heard about this kind of problem and what have you done to resolve it? I would hope that a definitive answer would be available, but unless you have your head under the hood that is not possible. I just was hoping to get pointed in a good direction. Should you need to get more info,
Thanks in advance for anything you can do to help.
updated 9-30-09
Thank you for your response. But amazingly, the problem revealed itself. It turns out that my muffler disintegrated inside. Nothing loud, just rattling in the muffler itself. Of all things.I called my other mechanic shop and asked if my muffler should sound like a maraca when I shook it. Obviously they said no. Problem solved. Hopefully. If it still exists, I will definetly ask them to check the resistance on the crankshaft sensor.
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Saturday, September 26th, 2009 AT 4:19 PM
