Shutter at high speeds - 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 08-29-2003, 04:49 PM   #1
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Default Shutter at high speeds

Hello,


I have recently experienced a problem with my 96 Bonneville. When accerating onto high ways, the car will like jerk between 50 and 60mph, its hard to explain, but i can feel it like jerks/hesistates, and the harder you push on the gas, it does it more, then goes away. Now this doesnt happen all the time, sometimes it'* fine and accerates without any jerk to it. The RPM'* dont jump when this jerking occurs, so i hope it isnt the transmission, what else could be wrong? maybe the tranny fluid needs changing? any suggestions would be appreaciated...thanks...
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Old 08-29-2003, 05:17 PM   #2
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You may be experiencing the same thing as me and I have not been able to fix it yet.
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Old 08-29-2003, 05:35 PM   #3
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I have a 3.1 turbo and it'* doing the same thing. I changed the plugs. now I'm going to change the wires and coils.


hope someone figures this out.



marcus
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Old 08-30-2003, 12:48 AM   #4
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I have the same problem here. The only thing I found that helps is 93 octane. But it is more expensive and I don't get as good as gas mileage. It also happens to me when I go up a slight incline.

Also in the last 8000 miles I have replaced everything I can think of.
Transmission Fluid and Filter
PVC Valve
Fuel Filter
Serpentine Belt (Gatorback)
Plug Wires (Bosch)
Spark Plugs (NGK Iridium IX)
Thermostat (180 degree)
Tires (so it shouldn't be a problem with balance)
O2 Sensor (AC Delco)
I keep my oil changed and ail filter cleaned regularly.

I am working on money for MSD wires and Coil to see if that helps. The only other thing that I have heard of is the fuel injectors and rail can cause some problems.
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Old 08-30-2003, 02:51 PM   #5
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I have that problem, tuning it didnt seem to help. It olny seems to do it on inclines, definatly not on downhills. Will do it in all gears given there * a hill and low rpms. I do notice that it doesnt do it when the engine is cold.

Though these articles wont really help because nobody knwos the solution to this problem, check em out...
http://www.bonnevilleclub.com/forum/...957&highlight=
http://www.bonnevilleclub.com/forum/...824&highlight=

http://www.bonnevilleclub.com/forum/...110&highlight=

http://www.bonnevilleclub.com/forum/...444&highlight=

http://www.bonnevilleclub.com/forum/...379&highlight=

http://www.bonnevilleclub.com/forum/...380&highlight=
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Old 08-30-2003, 02:58 PM   #6
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Quote:
Originally Posted by parallelcircuits
I have the same problem here. The only thing I found that helps is 93 octane. But it is more expensive and I don't get as good as gas mileage. It also happens to me when I go up a slight incline.

Also in the last 8000 miles I have replaced everything I can think of.
Transmission Fluid and Filter
PVC Valve
Fuel Filter
Serpentine Belt (Gatorback)
Plug Wires (Bosch)
Spark Plugs (NGK Iridium IX)
Thermostat (180 degree)
Tires (so it shouldn't be a problem with balance)
O2 Sensor (AC Delco)
I keep my oil changed and ail filter cleaned regularly.

I am working on money for MSD wires and Coil to see if that helps. The only other thing that I have heard of is the fuel injectors and rail can cause some problems.
those bosch plug wires might be your problem
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Old 08-31-2003, 12:33 AM   #7
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Quote:
Originally Posted by Burgundy_Boat
those bosch plug wires might be your problem
Yea I know. They were suppost to be the best ones Autozone carries in stock but once I got them on I noticed they were only 7mm(sucks). At they time they were a lot better they the stock ones because the insulation was completely gone on one of the stock wires. As I said in the previous post I am saving up the $'* to get MSD wires and Coils. The wires will come first.

The only other thing I know is that I have my MAF screen removed and still have my stock air box. I am going to try and finish my RAM AIR system tonight and put the MAF screen back in and will see what happens.
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Old 09-01-2003, 02:18 PM   #8
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I have the same problem and have been following all the threads about it for tha past cule of months. I haven't hadtime to do anything about it yet, and it'* not really that bad, but it drives me nuts cause it just ain't right.

It feels to me like it could be a problem with the torque converter lockup...does that make sense?
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Old 09-01-2003, 03:51 PM   #9
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I have had the same problem. I have put in new plugs and wires. And had a new tranny put in it, and it still does it. I took it to my auto mechanics class and put my car on the scanner and it said something about a crank sensor or a cam postion sensor. My teacher said that the cam senor could cause the car to do this when you are around 50 -60.
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Old 09-01-2003, 08:25 PM   #10
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I got my ram air working (not finished but it working) and I replaced the MAF and it seems to be better, I don't feel the shutter anymore but I haven't drove it very much since then. I will get some pictures of the current ram air setup and get the posted soon. I has been raining for about 3 days here and no sign of it letting up.
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