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Discussion Starter · #1 · (Edited)
Curious, why would the engine (seem to) cut-out very briefly (as thought the DSC was kicking in) at 5,000 RPMS (4th gear) on a straight dry clean (no pebbles) road, at a tad over 100 MPH, with even and smooth acceleration? Did it twice today at different locations, same exact conditions. After 5K RPMs its without drama to 6ish. Seems strange. Car has 16K on the clock ('03). Sport - on, DSC on. Opinions?
 

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dmccrary90025 said:
Curious, why would the engine (seem to) cut-out very briefly (as thought the DSC was kicking in) at 5,000 RPMS (4th gear) on a straight dry clean (no pebbles) road, at a tad over 100 MPH, with even and smooth acceleration? Did it twice today at different locations, same exact conditions. After 5K RPMs its without drama to 6ish. Seems strange. Car has 16K on the clock ('03). Sport - on, DSC on. Opinions?
Is this a std car? I had something similar to this last year, cleaned the MAF's/replaced the MAFs, things were alot better, but in the end it was the hydraulic lifters which were sticking, once they were changed, was back to 100% health!

Don't want to alarm you, as it could be dirty mafs/camshaft sensor failing/spark plugs etc.. as its a 03 car, take it to your dealer and get the ecu error codes read to find out which sensor is causing the ecu to switch to limp/failsafe mode.
 

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Could it be a slipping clutch:confused2 Just a suggestion, hope you get the problem solved soon.
 

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A far shot: it could be the ABS sensors. If those skip a few pulses, the car will not rev above 5500 RPM.

(This is the reason why you need to pull fuses 17 & 30 to shut down the DSC when you dyno the car.)

David
 
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