2018 Chevrolet Colorado Engine Problems

Your transmission shudders when shifting gears, causing your car to jerk and lose speed unexpectedly. This problem makes it hard to accelerate smoothly or merge into traffic safely, which could increase your risk of being rear-ended or getting into an accident. The issue may require transmission fluid service, filter replacement, or internal transmission repairs.

I HAVE A 2018 CHEVROLET COLORADO 3.6L. I HAVE HAD A RATTLE NOISE ON COLD START THAT WOULD HAPPEN EVERY SO OFTEN. NOW THAT I'M 1K MILES OUT OF POWERTRAIN WARRANTY THIS RATTLE NOISE HAPPENS JUST ABOUT EVERY TIME I START MY TRUCK. IT IS CAUSED BY THE VARIABLE TIMING ACTUATOR ON THE CAMSHAFT. I AM AN AUTOMOTIVE TECHNICIAN, AND I'M VERY FAMILIAR WITH VARIABLE TIMING ACTUATORS. THE PROBLEM IS THE LOCK PIN IN THE ACTUATOR DOES NOT FUNCTION PROPERLY WHEN YOU TURN THE VEHICLE OFF CAUSING IT TO DRAIN ALL THE OIL OUT OF IT. THIS CAUSES THE ACTUATOR TO RATTLE AROUND UNTIL IT GET OIL PRESSURE. THIS WILL EVENTUALLY CAUSING ISSUES WITH YOUR TIMING CHAIN AND OTHER COMPONENTS INTERNALLY IN THE ENGINE. VERY DISTURBING THAT GM KEEPS MAKING VEHICLES THAT WORK FINE, USUALLY, UNTIL THEY HAVE GOTTEN OUT OF WARRANTY. LET ME ALSO STATE THAT I REGULARLY CHANGE MY OIL WITH THE RECOMMENDED OIL AND WELL BEFORE IT'S DUE. NOT VERY HAPPY!

A FAULTY ENGINE BLOCK HEATER CAUSED THE ENGINE COMPARTMENT TO CATCH FIRE WHILE THE TRUCK WAS PARKED, TURNED OFF AND THE FACTORY INSTALLED ENGINE BLOCK HEATER WAS PLUGGED IN.

WHILE DRIVING HOME, YELLOW CHECK ENGINE LIGHT CAME ON & I NOTICED REDUCTION OF OIL PRESSURE. PARKED IN DRIVEWAY, SHUT OFF ENGINE, WENT INSIDE. UPON RETURNING, NOTICED SIGNIFICANT AMOUNT OF OIL ON DRIVEWAY. DIPSTICK SHOWED NO OIL. TOWED TO DEALERSHIP. THEY VERIFIED LEAKING CAME FROM DEFECTIVE OIL COOLER LINE HOSE. WAITED SEVERAL DAYS FOR REPLACEMENT PART. THIS IS A NEW 2018 COLORADO Z71 WITH ONLY 5K MILES ON ENGINE. AND, THIS IS A SYSTEMIC PROBLEM THAT GM HAS KNOWN ABOUT SINCE 2015 AND IMPACTS BOTH COLORADO AND CANYON MODELS (THERE ARE SEVERAL COMPLAINTS ON WEB). THIS IS A DANGEROUS PROBLEM AND SHOULD BE INVESTIGATED BEFORE SOMEONE GETS HURT. IT WAS NOT A SLOW LEAK. OBVIOUSLY, IT IS MANUFACTURING PROBLEM. ADDITIONAL INFORMATION (INVOICE AND PICTURES) AVAILABLE UPON REQUEST.