Engine Crankshaft Position Sensors measure crankshaft location to detect misfire and control engine timing. If you have a engine check light P0335 and your car isnt running right, it may be time to replace your faulty Crankshaft Position Sensor. Fit 04-06 Buick Rainier/04-05 Cadillac Cts /02-06 Cadillac Escalade /02-06 Chevrolet Avalanche 1500 /98-02 Chevrolet Camaro /97-05 Chevrolet CorveTTe /03-07 Chevrolet Express 1500 /03-07 Chevrolet Express 2500 /03-07 Chevrolet Express 3500/2006 Chevrolet Impala /2006 Chevrolet Monte Carlo/99-06 Chevrolet Silverado 1500 /2007 Chevrolet Silverado 1500 Classic /99-09 Chevrolet Silverado 2500/2007 Chevrolet Silverado 2500 Classic /01-06 Chevrolet Silverado 3500 /2007 Chevrolet Silverado 3500 Classic/03-06 Chevrolet Sonora /03-06 Chevrolet Ssr /00-06 Chevrolet Suburban 1500 /00-06 Chevrolet Suburban 2500 /00-06 Chevrolet Tahoe /2006 Chevrolet Trailblazer/05-06 GMC Envoy /03-07 GMC Savana 1500 /03-07 GMC Savana 2500 /03-07 GMC Savana 3500/99-06 GMC Sierra 1500 /2007 GMC Sierra 1500 Classic /99-06 GMC Sierra 2500/2007 GMC Sierra 2500 Classic/01-06 GMC Sierra 3500 /2007 GMC Sierra 3500 Classic /00-06 GMC Yukon/00-06 GMC Yukon Xl 1500/00-06 GMC Yukon Xl 2500/03-07 Hummer H2/98-02 Pontiac Firebird/05-06 Pontiac Grand PriX/04-06 Pontiac Gto/05-07 Saab 9-7X4.8L, 5.3L, 5.7L, 6.0L V8