I would stay at least a mile away from a rental, checked the oil level on several I rented, looked more like black crude fresh out of the ground.
Really don't have to change the oil on these things, just get into the DIC maintenance section, oil life remaining, and push that button at the end of the directional signal lever to reset it back to 100%.
Have no idea what clamp you are referring to on the oil filler cap, you should post a photo.
Of course I know what a purge valve is, part of the emissions evaporative control system. Normally stays open between the fuel tank and the carbon canister that is suppose to collect gas fumes. When the ECU gets bored, closes that purge valve, and opens a vent valve to suck those fumes back into the intake manifold. Will generate a code if that purge valve won't close, vent valve won't open, or if a pressure sensor in the tank won't go to negative pressure about an inch or so of Hg.
Most common problem if forgetting to replace the fuel filler cap, can't draw a vacuum with a wide open space like that. Is an EPA requirement and was fairly troublefree when the purge valve and carbon canister was mounted high on the firewall in the engine compartment.
But some idiot and GM decided to mount the canister and purge valve at the rear of the fuel tank where its exposed to road salt, street puddles, dust from roads, so it has become a major problem that never existed before.
Cruze is also monitoring the vacuum in the crankcase, that also covers the camshaft cover, all open on the inside. So alos will set a code if the dipstick is not pushed down or the oil filler cap is not installed. Maybe a reason why someone installed some kind of clamp on the oil filler cap. Whatever it is, shouldn't be there.
Really don't have to change the oil on these things, just get into the DIC maintenance section, oil life remaining, and push that button at the end of the directional signal lever to reset it back to 100%.
Have no idea what clamp you are referring to on the oil filler cap, you should post a photo.
Of course I know what a purge valve is, part of the emissions evaporative control system. Normally stays open between the fuel tank and the carbon canister that is suppose to collect gas fumes. When the ECU gets bored, closes that purge valve, and opens a vent valve to suck those fumes back into the intake manifold. Will generate a code if that purge valve won't close, vent valve won't open, or if a pressure sensor in the tank won't go to negative pressure about an inch or so of Hg.
Most common problem if forgetting to replace the fuel filler cap, can't draw a vacuum with a wide open space like that. Is an EPA requirement and was fairly troublefree when the purge valve and carbon canister was mounted high on the firewall in the engine compartment.
But some idiot and GM decided to mount the canister and purge valve at the rear of the fuel tank where its exposed to road salt, street puddles, dust from roads, so it has become a major problem that never existed before.
Cruze is also monitoring the vacuum in the crankcase, that also covers the camshaft cover, all open on the inside. So alos will set a code if the dipstick is not pushed down or the oil filler cap is not installed. Maybe a reason why someone installed some kind of clamp on the oil filler cap. Whatever it is, shouldn't be there.
