🔧 Cherokee - Radiator Hose Replacement

Replacing a radiator hose stops coolant leaks and prevents overheating. On your Cherokee, the job is mainly about safely draining a little coolant, swapping the hose, and refilling/bleeding the cooling system.

Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours

Assumption: You’re replacing either the upper or lower radiator hose; steps cover both.

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⚠️ Safety & Precautions

• Let the engine cool completely; hot coolant can cause severe burns.
• Wear safety glasses and gloves; coolant is toxic and slippery.
• Support the Cherokee with jack stands if you lift it; never rely on a jack alone.
• Keep coolant away from pets/children; clean spills immediately.
• Do not open the coolant cap when hot; pressure can spray coolant.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Drain pan (at least 10-quart)
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Flathead screwdriver
• Hose clamp pliers (specialty)
• Pick tool (small hook) (specialty)
• Slip-joint pliers
• 7mm nut driver
• 8mm socket
• 10mm socket
• 1/4" ratchet
• 3" extension for ratchet
• Trim clip removal tool
• Funnel
• Spill-free funnel kit (specialty)
• Shop towels

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Upper radiator hose - Qty: 1
• Lower radiator hose - Qty: 1
• Radiator hose clamps - Qty: 2
• Engine coolant (OAT) 50/50 premix - Qty: 1-2 gallons

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Let the engine cool fully (coolant reservoir should feel cool to the touch).
• Place wheel chocks behind the rear tires.
• If you need access from below (common for the lower hose), lift the front with a floor jack and set it on jack stands.
• Position a drain pan under the front of the Cherokee before loosening anything.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Relieve cooling-system pressure safely

• Use nitrile gloves and safety glasses.
• Slowly loosen the coolant reservoir cap by hand only after the engine is completely cool.
• If you hear any hiss, tighten it back and wait longer.

Step 2: Remove the lower splash shield (if needed for access)

• Use a trim clip removal tool to pop plastic clips, and use an 8mm socket with a 1/4" ratchet for small bolts (hardware varies by shield).
• Set the fasteners aside in a small tray so you don’t lose them.

Step 3: Drain enough coolant to drop the level below the hose

• Place the drain pan (at least 10-quart) under the radiator’s lower area.
• If equipped with a radiator drain cock/petcock, open it carefully by hand or with a flathead screwdriver (only if it clearly fits).
• If no drain is accessible, you can drain by loosening the lower radiator hose clamp slightly (go slow to control the flow).
• Drain only what you need to reduce mess.

Step 4: Identify which hose you’re replacing

• Upper radiator hose: runs from the top of the radiator to the engine/thermostat housing area.
• Lower radiator hose: runs from the bottom of the radiator to the engine area; it’s usually easier to reach from underneath.

Step 5: Remove the hose clamps

• If you have spring-style clamps, use hose clamp pliers (specialty) (they lock and hold tension so your hands are free). Squeeze the clamp and slide it back onto the hose.
• If you have worm-gear clamps (screw type), loosen them using a 7mm nut driver or flathead screwdriver and slide them back.
• Use shop towels to catch drips.

Step 6: Break the hose free (do not pry on plastic)

• Twist the hose by hand to break it loose from the fitting.
• If it’s stuck, use a pick tool (small hook) (specialty) to gently lift the hose edge to let air in (do not gouge the metal/plastic neck).
• Avoid prying against radiator plastic tanks or plastic fittings; they can crack.

Step 7: Remove the old hose and compare to the new one

• Pull the hose off and keep the open ends pointed upward to reduce spills.
• Compare the new hose shape, length, and end diameters to the old one before installing.
• Transfer any protective sleeves or clips (if present) to the new hose.

Step 8: Install the new radiator hose

• Slide the clamps onto the hose first.
• Push the hose fully onto each fitting until it bottoms out past the bead (the raised ridge on the neck).
• Position the clamp behind the bead on the fitting, then release/tighten it.
• If using worm-gear clamps, tighten with a 7mm nut driver until snug; do not crush the hose or fitting.

Step 9: Reinstall the splash shield (if removed)

• Use the trim clip removal tool to align clips and push them back in.
• Use an 8mm socket with a 1/4" ratchet to reinstall bolts snugly (small fasteners strip easily).

Step 10: Refill coolant

• Use a funnel and add engine coolant (OAT) 50/50 premix to the coolant reservoir to the proper level.
• If you drained a lot, a spill-free funnel kit (specialty) helps you fill and bleed without spilling (it seals into the fill opening and traps air).
• Reinstall the reservoir cap.

Step 11: Bleed air and check for leaks

• Start the engine and set the heater to HOT with the fan on LOW.
• Let the engine warm up while you watch the hose connections for leaks.
• After the engine reaches normal operating temperature, shut it off and let it cool completely.
• Recheck the coolant level in the reservoir and top off with engine coolant (OAT) 50/50 premix as needed.

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✅ After Repair

• Road test for 10-15 minutes and watch the temperature gauge.
• Park, let the engine cool, then inspect both hose ends for any seepage.
• Recheck coolant level the next day (cold engine) and top off if it dropped.
• Dispose of old coolant properly; most parts stores accept waste fluids.

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💰 DIY vs Shop Cost

Shop Cost: $250-$500 (parts + labor)

DIY Cost: $35-$120 (parts only)

You Save: $130-$465 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-2.0 hours.

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🎯 Ready to get started?

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