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I was driving to work this morning and suddenly my Buick…

Customer Question
I was driving to...

I was driving to work this morning and suddenly my Buick Allure would not go more than 60 km an hr. The RPM's were going up but my speed was not

Mechanic's Assistant: What year is your Allure?

2005

Mechanic's Assistant: Are you fixing your Allure yourself? What have you tried so far?

No, I have a mechanic. I have done nothing yet. I was going to see if it still does the same on my way home tonight

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I just want to know what it could be

Submitted: 5 months ago.Category: GM
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Answered in 1 minute by:
11/21/2017
GM Mechanic: Pete, GMC Technician replied 5 months ago
Pete
Pete, GMC Technician
Category: GM
Satisfied Customers: 31,740
Experience: 14 years GM dealership technician and training.
Verified

Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.

Did it feel like the engine was revving as if the transmission was in neutral or that the transmission was not upshifting into a higher gear possibly?

Is or has the check engine light come on with this issue here at all?

Let me know,thanks Pete

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Customer reply replied 5 months ago
Neither of those things happened.
There was nothing else unusual at all.
Just would not excellerate
GM Mechanic: Pete, GMC Technician replied 5 months ago

O.k.,that is odd

Were you shifted into drive?

Did it feel like there was no response to the gas pedal at all when pressing it?Even if you had slowed a little would it go back to the limited speed it was at when pressing on the gas pedal?

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Customer reply replied 5 months ago
No as I am not mechanically inclined.
I was just hoping that you could give me an idea of what it could be.
No it just wouldn't go any faster
Customer reply replied 5 months ago
It just stayed at 60 km
Customer reply replied 5 months ago
Are you there
GM Mechanic: Pete, GMC Technician replied 5 months ago

I am here just reviewing some info on this real quick

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Customer reply replied 5 months ago
Okay
GM Mechanic: Pete, GMC Technician replied 5 months ago

Even though the check engine light has not come on I would have the fault codes checked/read out with a compatible scan tool plugged into your model to see what codes are set.If any codes are set those codes will need diagnosed to then locate and repair this issue here.

I have seen issues with the accelerator pedal position sensor send a false signal intermittently causing loss of acceleration and this is a possible cause.This can be very intermittent in some cases with the pedal assembly needing replaced.

Usually if it was a transmission issue the check engine light would come on so I dont see that as a cause here.Same for the throttle body or throttle sensors.This may be a fault with the accelerator pedal sensor with the pedal needing replaced.

If it acts up then it does need to be checked into further to then locate and repair this fault.You may have to have the accelerator pedal sensor signals checked when it is acting up with a scan tools data list when plugged into your vehicle to see if it needs replaced.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

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