Chugging while at cruising speed. - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-04-2006, 05:05 PM   #21
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Originally Posted by SSEBONNE4EVA
You mentioned you changed the TPS. It may be calibrated a little differently being plug and play. Any chance of putting the old one back on just to see if the problerm goes away?
When I did the cal mod to my sensor it seemed to help the chuggle at 40 mph although it did not eliminate it completely. It now downshifts easier rather than holding the gear.
The old TPS has been thrown out, and the new one elliminated the code, as for the ignition wires, I just checked and #2,4,&6 wire and they are not touching the O2 sensor I also I could not find any arching. The wires on it now are AC Delco, but I also realise that my diagnoses doesn't mean that the wires are still good. I will order new ones, but in the mean time, could it possible be anything else?
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Old 11-05-2006, 10:38 PM   #22
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Frank, I have the exact same issue as you do....seems to run fine around 100kp/h and above and as soon as its in the "cruise" area speeds of 80-95km/h I get that slight "chugging" and can see my boost guage jumping up and down a bit. Once I give it some gas it goes away instantly. I have a new coupler which I was about to put on but now that I've read this post I'm not sure if that is the problem :( I don't think I saw it but have you changed your fuel filter? My 95 SSEi has 394,000kms and I'm not 100% sure when the previous owner from Toronto changed it so I'm going to give that a shot too. Keep us posted
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Old 11-06-2006, 08:45 AM   #23
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Originally Posted by Turk12
Frank, I have the exact same issue as you do....seems to run fine around 100kp/h and above and as soon as its in the "cruise" area speeds of 80-95km/h I get that slight "chugging" and can see my boost guage jumping up and down a bit. Once I give it some gas it goes away instantly. I have a new coupler which I was about to put on but now that I've read this post I'm not sure if that is the problem :( I don't think I saw it but have you changed your fuel filter? My 95 SSEi has 394,000kms and I'm not 100% sure when the previous owner from Toronto changed it so I'm going to give that a shot too. Keep us posted
Yes I have change the fuel filter. I didnít think it was the fuel filter since, it'* not happening when I accelerate. You would think that if it'* a slightly clogged fuel filter is would be starving for fuel when you accelerate. I just thought I would mention that by boost gauge didn't jump up and down a bit before I changed the coupler and it'* still not jumping up and down.

Thanks for the comments.
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