Discuss your 2000-2005 Bonneville SE, SLE, SSEi, Buick Le Sabre 00-05 and Buick Park Avenue 97-05. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
I am literally here. I have been noticing when I drive around in parking lots that my engine will kind of lug as if it's misfiring. Didn't ever do this before. It happens with very light throttle. What I did notice that when I changed the plugs in it recently is that #3 and 5 are a little dirtier than the rest. I am wondering if those cylinders injectors aren't performing to their fullest. I will also get hesitation under hard throttle as well and when I looked under the hood at night I noticed 3 & 5 exhaust ports glowing a faint red. I am going to conduct a pressure test by pulsing the injectors. Hope I find an answer there. Any help is appreciated here.
I had the same issue little while back but I found out that the plugs had hairline cracks and we're shorting on the metal sheilds. So basically try taking the sheilds off see if that helps
here. 
I have been noticing when I drive around in parking lots that my engine will kind of lug as if it's misfiring. Didn't ever do this before. It happens with very light throttle. What I did notice that when I changed the plugs in it recently is that #3 and 5 are a little dirtier than the rest. I am wondering if those cylinders injectors aren't performing to their fullest. I will also get hesitation under hard throttle as well and when I looked under the hood at night I noticed 3 & 5 exhaust ports glowing a faint red. I am going to conduct a pressure test by pulsing the injectors. Hope I find an answer there. Any help is appreciated here.
