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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 12-01-2009, 12:01 AM   #1
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Arrow Engine Stumbles on Accelerate / Rattling from the Transmission ?

Okay, so I have two questions, and I would greatly appreciate any help given.
First, when ever I drive and I begin to accelerate my engine stumbles and losses horse power. Nevertheless I was thinking it could be bad gas that I have bought, however I always buy my gas from Shell, therefore I don't believe I could have gotten any that was bad. By the way I have done a tune up with the spark plugs and wires, so that I believe is also out of the question.
Secondly, when driving and I begin protruding up a hill my car will drop down into a low gear or it will kick the cadillac converter, and then proceeds with some kind of noise rattling from the transmission. With that being said my transmission has already been built once before.
Again, any information given, regarding this matter would help out a lot. Thanks!

Last edited by MOODY-6; 12-01-2009 at 09:39 AM. Reason: wrong heading
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Old 12-01-2009, 12:08 AM   #2
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Test your coils, plugs, and wires. Check your fuel pressure. Pull the plugs and inspect them. Do any of them look different? they should all be a light dull gray. If any differences, note which cylinder and post it here.
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Old 12-01-2009, 12:31 AM   #3
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Test your coils, plugs, and wires. Check your fuel pressure. Pull the plugs and inspect them. Do any of them look different? they should all be a light dull gray. If any differences, note which cylinder and post it here.
ok will do !
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Old 12-01-2009, 09:51 AM   #4
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The stumbling and losing power gave me a thought and then you mentioned noise from the trans.

Do you feel that the engine is stumbling and losing power or that the rpm stay constant/building up and the trans is slipping/shuddering?

Do you do one wheel burn outs or tear around corners to get the tires to break free?

When was the trans rebuilt and how many miles are on it?
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Old 12-01-2009, 11:02 AM   #5
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The stumbling and losing power gave me a thought and then you mentioned noise from the trans.

Do you feel that the engine is stumbling and losing power or that the rpm stay constant/building up and the trans is slipping/shuddering?

Do you do one wheel burn outs or tear around corners to get the tires to break free?

When was the trans rebuilt and how many miles are on it?
i dont really know i will see when it does it agin , it has not done it today yet ! but when it does i will look at the RPMs , in let you know thanks for the help !
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Old 12-01-2009, 02:22 PM   #6
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Quote:
Originally Posted by BillBoost37 View Post
The stumbling and losing power gave me a thought and then you mentioned noise from the trans.

Do you feel that the engine is stumbling and losing power or that the rpm stay constant/building up and the trans is slipping/shuddering?

Do you do one wheel burn outs or tear around corners to get the tires to break free?

When was the trans rebuilt and how many miles are on it?
well it did it agin< i they RPMs jump up in down with the car !
but when the trans is slipping/shuddering it does jump bc i seen it befor , never the less my Check eng lite came on when it was stumbling to day in it gave me the code P0102 MAF Of VAF circuit low input , , i only burn out when its wet out side , so idk about that !
the trans was rebuilt about yr in a half ago in i would say about may 4,000 or 5,000 on it

thanks for the help
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Old 12-01-2009, 02:25 PM   #7
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Yup, start with the maf fix. The maf and TPS can do a lot to shifting etc.
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Old 12-01-2009, 02:47 PM   #8
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Also check your fluid. Keep in mind the size of those wheels puts a lot of strain on the transmission. You should monitor the fluid temp and watch the color of the fluid.
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Old 12-01-2009, 03:41 PM   #9
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thanks , i will keep you posted
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Old 12-01-2009, 04:25 PM   #10
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Oh Yeah! you can definitly get bad gas from any service station
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