Whether you need exact original equipment specification parts or high-quality replacement parts, you can rely on ACDelco Emission components, Fuel Injection and Control Modules to deliver. With GM OE and Professional lines, your GM car, truck or SUV will run in tip-top form.
- ACDelco OE emission parts, fuel injectors and control modules earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions
- Designed to meet rigorous OBD ll standards
 Don't Forget About Your PCV Valve! A PCV Valve is a maintenance item that should be replaced as often as every 30,000 miles (refer to your Owners Manual for recommended service intervals). Overextending the PCV Valve’s service life promotes sludge formation, which clogs the engine’s interior surfaces and can lead to condensation that causes engine wear.
Common symptoms of a faulty PCV Valve include:
- Oil leaks / Oil in the Air Filter housing
- Excessive Oil consumption
- Gray-white smoke from the tailpipe
- Check Engine Light illuminated (common codes include P0171 and P0174)
Service Tip: Remove the PCV Valve and gently shake it - if it does not rattle, the valve is clogged or dirty and should be replaced. A PCV Valve that rattles might still need to be replaced if it has been distorted inside by heat, oil exposure, and/or abrasion so that it leaks air.
 RockAuto Newsletter: PCV & Oil Separator Systems
ACDelco Quality ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.
| GM ORIGINAL EQUIPMENT |
| GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors. |
| ACDELCO GOLD (PROFESSIONAL) |
| ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors. |
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