Q: Leaking top radiator hose? Leaking top radiator hose how to replace a leaking top radiator

asked by on October 22, 2016

I need to know how to replace the top radiator hose?

If you have not done a job like this before you might want to consider watching a professional from YourMechanic do it for you, especially as the labor time is less than 1.5 hours so it’s pretty economical. The first order of business, of course, is to make sure that the upper hose is actually leaking and you don’t have a different issue such as a crack is the radiator itself where the hose attaches. Also, if that hose is leaking due to a break in aged rubber, the other "old" hoses should be inspected as well. A radiator hose replacement entails removing any plastic shields that prevent access to the hose(s). Then, you have to drain the coolant to a level below the lowest point that you will be working at. The hose clamps are removed and then you have to carefully "debond" the hose from the point it is attached to the tank. Over time, the rubber will bond really tightly to the radiator and you have to break the seal with damaging or severely scratching the radiator "nipple" (the part the hose slides over). Then you slip the new hose on (with clamps already loosely applied), apply the clamps and you are ready to refill. When refilling, you have to open the cooling system bleeder screws (if equipped) to ensure that air does not get trapped. Trapped air could cause the car to overheat as trapped air can block coolant flow.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

voltage warning light still coming on 30-45 seconds after car starts.

Nothing should be replaced until you have in hand a definitive diagnostic pinpointing the faulty segment of the car's electrical system. There may be too much voltage drop in the charging circuit, as well as elsewhere, but start with the...

Is a 2011 Chevy Impala equipped with magnasteer?

Magnasteer was not an option on the 2011 Impala so what you are looking at is an irrelevant catalog entry (an error in the parts catalog). However, several different rack and pinion units were installed on the 2011 Impala and...

Heat only works when accelerating

Hello. I suspect the heater control valve is the culprit here. Most likely only opening partially. By only being partially open, it allows more hot water to circulate when the engine load and RPM are higher, as when you accelerate,...

Parts

You already have the names of the parts and can purchase them with the names you have so they can be installed. Just remember that the parts will not be covered by our parts warranty.

My automatic shifter will vibrate hard when I'm going over 80 and my car also would shake a bit

Hi there. Not sure what roads you can travel over 80mph but several things may cause this issue. One possibility is having broken or sagging transmission/engine mounts. Another possibility is a driveline vibration caused by worn CV joints and/or U-joints....

The car won't start - 2012 Ford Explorer

Hi there. This may be related to a failing starter or starter solenoid. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity to the starter. When this fails, it may cause a clicking...

Radiator blew

This can happen for a number of reasons, however, the smoking and liquid leaking is a sign that your car has overheated. This can happen when the thermostat is not working properly or the coolant fans are not coming on...

How do I install a high pressure power steering line I can't get it to twist and screw into the rack

The double flare end of the tube should be fully inserted until the flare mates with the convex sealing surface. The tube nut should then smoothly thread all the way down by hand. If the tube nut does not start...

Can't shift gearstick

This is a very common problem on your vehicle. The problem is with the gear shift interlock solenoid. Luckily there is an access panel on the passenger side of the console that can be popped off. There is a small...

Related articles

What Causes a Suspension to Collapse?
Every Every car, truck and SUV features a suspension, the system of parts that holds the vehicle up, absorbs bumps, and allows it to steer. For the most part these systems wear out slowly, and with proper maintenance and periodic...
How Often Should Hoses Be Replaced?
Your Your engine needs coolant, the power steering rack needs fluid, and the calipers need fluid to squeeze the rotors to stop the car. Most fluids make their way to their destination through hoses. Those hoses are generally made of...
Symptoms of a Bad or Failing Surge Tank Hose
Common signs include leaking radiator coolant under the right side of the car, swelling in the hose, engine overheating, and a damaged hose.