2003 Lesabre rough idle and studder on hills
"He should drive the vehicle on the highway, at 55 mph, up a slight grade....then, SLOWLY accelerate(to keep the TCC engaged).....if this can induce a misfire, then it'* generally secondary ignition...... "
This does happen, BTW how do check spark out put from each coil terminal? See if I am getting spark of each wire?
Also, an update... drove 37 miles to work with it today. Which included a pretty steep incline on the highway. Car seem to chug and shudder sporadically when I got on the gas and SES flashed several times but went out.
This does happen, BTW how do check spark out put from each coil terminal? See if I am getting spark of each wire?
Also, an update... drove 37 miles to work with it today. Which included a pretty steep incline on the highway. Car seem to chug and shudder sporadically when I got on the gas and SES flashed several times but went out.
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zigzag_03
GMC/Chevrolet Truck/SUV
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Feb 25, 2017 12:39 AM
bonnieville42
1992-1999
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Apr 14, 2006 07:30 PM







