Thread: 99 Buick Regal Surging under light acceleration at 35mph(rarely) or 45mph(randomly)

Before I explain what is going on here is what I have replaced/done

replaced:
plugs/wires
tranny fluid
tranny filter
tranny gasket
tranny lines
little marvel for cleaning up the transmission(doing the safe flush)
vacume lines
maf
pcv

done:
cleaned injectors
wd-40 vacuum leak check
sea foamed
cleaned the egr


Here's whats going on, No svs/ses/cel lights, the car drives well, idles smooth, shifts good, until you lock up in overdrive or at 35mph. I will going fine then lightly press on the gas and it surges/flutters. It jumps between 1200-1500 in overdrive, and when it does it at 35mph its jumps 1500-1700, but this is a rare occasion. The surge/flutter is sort of like a miss fire without the shaking. It also happens randomly, for example I drove for 5 days with no problems, on day six it surged only at 35mph for a little while, and today it was jumping when I shifted into overdrive at 45mph. Even stranger, I locked up in overdrive at 40mph today and then all was well. I Let off the gas then locked up at 45mph it surged again. I just took it to the transmission shop(specialize in domestics), told them exactly what I just wrote up. They told me, "That your transmission is fine but it could be a coil." What you guys think?

no I have not actually, will look into that any cleaner you prefer over the crc stuff?

YES! Just got back from the 400 mile trip and its looking good. I got a few bucks and surges but they were few and far between and canceled themselves out pretty quickly. All that was replaced was the front passenger hub with a timken and the egr gasket with a good cleaning. I'm still waiting on my replacement coil to be shipped(I was given one faulty one out of the three. don't you hate that?), and once I have it on, I'll replace the plugs with coppers(i was a dip and got platniums) to see if that will cure it completely, and hold me off till I can get the ac delco iridiums.

Thanks for all the help you guys have given me Ik it must of been annoying hearing about this once every month.