How to Replace the Heater Hoses in a Dodge Ram

If you notice that your Dodge Ram is leaking engine coolant, it may be time to replace a heater hose. Over time, hoses can wear out and become cracked and brittle or swollen, which can result in leakage. Fortunately, replacing heater hoses is a project that is easy for even novice mechanics. Here's how to change the heater hoses in a 1994 to 2001 model Dodge Ram.

Instructions

1

Remove the radiator cap and loosen the drain plug on the bottom of the radiator. Drain the coolant into a clean, resealable container so that it can be reused. Once the coolant has drained enough to remove the hose, reattach the drain plug.

2

Loosen the hose clamps at each end of the hose that will be replaced. If the clamps have a worm drive, use a screwdriver to turn the screw holding the clamp counterclockwise. If the clamps are the spring type, squeeze the tabs together with pliers to release the tension.

3

Take a good look at the clamps. If they're worn, they should be replaced.

4

Clean both mounting connections with a clean shop rag, and put the clamps on the new hose. Coat the surfaces of both connectors with a light layer of waterproof sealant, and then slide the hose into position on the connector.

5

Tighten the clamps securely, but be careful not to over-tighten them.

6

Pour the coolant back into the radiator, unless it's old or contaminated. If you need to add fresh coolant, use a mixture of half distilled water and half antifreeze.

7

Start the engine and let it run long enough to warm up, then check the hoses for leaks.