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'95 Buick Park Avenue - Rough Idle and Hesitation
I was out of town for a week and the car sat in the driveway. When I went to start it up for the first time last Thursday, it wouldn't start. It just clicked when I tried to turn the key. AAA came and started it and we took it straight to the mechanic who put in a new battery. He checked several other things and said everything seemed fine. It ran fine for a day and then I let it sit for 2 days over the weekend. On my way to work on Monday(yesterday), I experienced rough idling and hesitation while driving. On my way home, I experienced the same thing and the check engine light came on. However, since I turned the car off the check engine light hasn't come back on. (So I can't take it somewhere to read the computer codes.) The hesitation and rough idling appear to be getting worse (I drove it this morning and afternoon), but the check engine light isn't coming on.
By the way, when I say hesitation - when I press the gas pedal the car shakes and runs really rough and as soon as I take my foot off, the roughness stops. It only happens randomly.
I'm assuming it's something with the fuel ... any help would be appreciated!