ACDelco Professional, premium aftermarket Return Fuel Line/PVC/Evaporative Emission Control Hoses (1986 & Older) are multi-purpose hoses used on Return Fuel Lines, PCV, and EEC systems, and for fuel return hose connections on diesel fuel injection systems. They are approved for use with leaded and unleaded gasoline, diesel, and gasoline blends of ethanol (E85), methanol, and ethers (up to the legal limits allowed by the EPA). They are temperature rated from -40 degrees Fahrenheit to 257 degrees Fahrenheit (-40 degrees Celsius to 125 degrees Celsius) with gasoline blends. These premium aftermarket replacement hoses are manufactured to meet your expectations for fit, form, and function. ?
| Color | Black |
| FAQ - Answer 1 | Yes, make sure hose clamps are screwed on tightly when installing. |
| FAQ - Answer 2 | Yes - when there's water in the hose. That's why it's important to follow the vehicle manufacturer's recommendation on the use of engine coolant. |
| FAQ - Answer 3 | No, use the hose in the way it's listed in the ACDelco belts and hoses catalog. |
| FAQ - Answer 4 | Yes, this requires inspection, though. When the engine is cool, squeeze the hoses with your thumb and forefinger near the clamps. Feel for soft or mushy spots. A good hose will have a firm yet pliant feel. Also, Inspect for cracks, nicks, bulges (usually while hot), or a collapsed section in the hose and oil contamination, or fraying near the connection points. |
| FAQ - Answer 5 | No |
| FAQ - Answer 6 | No |
| FAQ - Question 1 | Can a bulk hose detach during use? |
| FAQ - Question 2 | Can a bulk hose freeze in the winter? |
| FAQ - Question 3 | Can I use the same bulk hose for multiple uses? |
| FAQ - Question 4 | Will I know when it is time to replace a bulk hose? |
| FAQ - Question 5 | Are there steps I can take to ensure a longer bulk hose life? |
| FAQ - Question 6 | Will a worn bulk hose affect gas mileage? |
| Good Maintenance Practices - Section 1 - Bullet 1 | Examine hoses every 12 months. Look for leaks, cracks, or rot. Replace when showing signs of wear. |
| Good Maintenance Practices - Section 1 - Bullet 2 | Tighten any loose clamps. Replace clamps when replacing hoses. |
| Good Maintenance Practices - Section 1 - Bullet 3 | Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating. |
| Good Maintenance Practices - Section 1 - Bullet 4 | Periodically remove bugs, leaves, and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency. |
| Good Maintenance Practices - Section 1 - Bullet 5 | Though electrochemical degradation occurs from the inside out, you can feel for voids, cracks, or weak spots. Squeeze the hose with your thumb and two or three fingers. If you're not sure, remove the hose and check it visually. |
| Grade Type | Regular |
| Length (ft) | 25 ft |
| Length (m) | 7.62 |
| Material | Nitrile |
| Measurements | 5/16 in x 25ft (50 psi, 24 in/hg) |
| Meets or Exceeds Original Equipment Manufacture Specifications | Yes |
| Programming Required | No |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 1 | Signs of electrochemical degradation include voids, cracks, or weak spots on the inside of the hose. |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 2 | Signs of internal heat damage include slight swelling of the hose cover. |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 3 | Signs of external heat damage include hardening or cracking of the hose cover. |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 4 | Other signs of wear include oil damage, abrasion damage, brittleness, lack of heat/cooling within the cabin, ozone damage, and leakage of the hose. |
| Universal Or Specific Fit | Universal |
| Working Pressure (PSI) | 50 |
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