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PostPosted: Sun Jan 03, 2021 7:58 pm 
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Posts like a Northstar
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Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1809
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
hi, happy holidays, New Year, merry Christmas.

slight rocking side to side? at what speed please?
explain this rocking pl.

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poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


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PostPosted: Wed Jan 06, 2021 3:37 am 
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Joined: Thu Nov 19, 2020 4:41 pm
Posts: 15
Year and Trim: 2000 Pontiac Bonneville SSEi
96 SSEi wrote:
hi, happy holidays, New Year, merry Christmas.

slight rocking side to side? at what speed please?
explain this rocking pl.


Happy New Year!

It happens when maintaining constant speed and only after the car really warms up.

So if i drive it for 20 mins from cold start, i'd not experience it but when it gets to temp it starts to jerk very very slightly. It feels like a miss, but a minor one.

It will go away when accelerating. But as soon as i try to cruise on the highway i can feel it. When in park i can feel it slightly too.

No codes.

It has new

coils
ICM
leads
plugs
injectors
FPR

Smoke test showed that there was a very slight vacuum leak at the EGR tube. I will tackle this next.


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PostPosted: Fri Jan 08, 2021 3:20 am 
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Joined: Thu Nov 19, 2020 4:41 pm
Posts: 15
Year and Trim: 2000 Pontiac Bonneville SSEi
I am now inclined to think its a drivetrain issue. The shake at idle is gone with new injectors. But at speed when maintaining constant i feel a jerking as if tranny is trying to down and up shift at the same time.
This evening i started hearing a creaking noise coming from the driver side front corner. Cv axle on that side has a slight play left to right. Can a bad cv axle cause this sort of jerking at constant speeds.


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PostPosted: Mon Jan 11, 2021 10:45 pm 
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Joined: Thu Nov 19, 2020 4:41 pm
Posts: 15
Year and Trim: 2000 Pontiac Bonneville SSEi
Issue resolved. It was the TPS. With a new TPS all is well.


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PostPosted: Tue Jan 12, 2021 10:17 am 
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Joined: Wed Dec 20, 2017 9:53 am
Posts: 128
Location: Ottawa, ON, Canada
Year and Trim: 2003 SSEi
smokingfang wrote:
Issue resolved. It was the TPS. With a new TPS all is well.


Hey, glad to hear it!

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2003 Pontiac Bonneville SSEi (L67) - Galaxy Silver Metallic
1996 Chevrolet Camaro (L36) - Sebring Silver


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PostPosted: Tue Jan 12, 2021 2:28 pm 
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Joined: Fri Jun 11, 2010 7:06 pm
Posts: 88
Year and Trim: 2001 SSei
smokingfang wrote:
Still got that bucking when doing constant speed.


I had a "bucking" at constant speed that turned out to be torque converter related. It was having trouble "deciding" when to go into overdrive and would stumble in the moment it tried to engage. The easy way to check is to get up to speed where OD kicks in and then move the gear shift out of OD into drive (3rd gear) to prevent it from trying to shift into OD. If the "bucking/stumble" stops you have your answer....


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PostPosted: Tue Jan 19, 2021 2:52 pm 
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Posts like a Northstar
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Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1809
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
:beerchug: :beerchug:

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am


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