Question about 2000 Chevrolet Silverado
Surges between 45 and 55 mph. In other words, I loose hp when the engine idles down at these speeds to about 1200rpm. I have acceleration, but idling at these speed, there is an obvious stutter, surge, rmmm, uhuhhhhuhhh, rrrrmmm feel. To overcome, I drive in tow haul, which I believe down shifts the transmission applying more torgue and drives at higher rpms to overcome. After a code scan revealed I must change out my catylytic converters, I hoped that was this issue. I have them replaced and still the same surging. No more codes. I also had my transmission rebuilt a year and one half ago. I can't recall if this occurred before that, or not.
I would get a techie to check the throttle position sensors... this has been a problem on the Chev/GMC set up.
Posted on May 19, 2009
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Posted on Jan 02, 2017
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