Question about Oldsmobile Alero
I hope for your sake it is the same simple problem I had building for some weeks on my Subaru Outback; the shaft of the throttle-body was gummy. I soaked the shaft with a penetrating lubricant (NOT WD-40 which evaporates) JB 80 which leaves lubricant behind after the penetrating part is gone. I tend to look for simple things first.
Posted on Mar 11, 2011
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Posted on Jan 02, 2017
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Throttle position (TP) sensor C/accelerator pedal
position (APP) sensor ? - range/performance problem
Possible Causes: Accelerator cable adjustment, TP/APP sensor
Throttle position (TP) switch C/accelerator pedal position
(APP) switch ? - range/performance problem
Accelerator cable adjustment, TP/APP switch
This might only be an adjustment issue--make sure the throttle cable isn't so tight that the throttle cannot fully close.
If the cable is OK, it is probably the accelerator position sensor under the pedal.
There are procedures for testing the unit that I will paste below if you care to try them.
If you just want a shop to fix it, the part is about $50 and labor should only be 30 minutes.
Operation The sensor is made up of the two individual sensors within a single housing. Each sensor has a unique functionality to determine pedal position. The APP system along with the Powertrain Control Module (PCM) is used to calculate and control the amount of acceleration and deceleration through fuel injector control.
Removal & Installation
Fig. APP sensor mounting
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