I need help with my 2003 chevy silverado 5.3 vortec. Intermittently the check eng, light comes on and
within a short time my dash will send a msg that i have reduced throttle power. This has been happening
several times now. Ive watched several you tube videos about this matter and I get several answers about what
the real problem is. I just want to make sure that i can resolve this without being ripped off. Can you please
advise.
thank you
On the Chevy fleet there have been tan’s on reduced engine power.
rhe two main culprits are the gas pedal and the throttle position sensor.....
If your experiencing po121 or p2135, you can concentrate on these areas.
Sorry TSB’s
Subject: SES Light And Reduced Engine Power DTC P0120 P0220 P1516 P2135 - keywords accelerator actuator APP blade body connector connection DTC L33 L59 LH6 LR4 LM7 LS1 LS2 LQ4 LQ9 module position reduce sensor #PIP3089B - (10/31/2006)
Models: 2004-2006 Buick Rainer
2005-2006 Cadillac CTS-V
2003-2006 Cadillac Escalade
2003-2006 Chevrolet Avalanche, Corvette, Express, Monte Carlo, Silverado, SSR, Suburban, Tahoe, Trailblazer
2003-2006 GMC Envoy, Savana, Sierra, Yukon
2003-2006 Hummer H2
2005-2006 Pontiac GTO
Equipped with a 4.8 5.3 6.0 or 7.0 V-8 Engine
There can be many reasons. The first step would be to run a diagnostic scan.
