2003 Chevy Trailblazer/ GMC Envoy 4.2L Water Pump Replacement

A quick video detailing the process of replacing the water pump on a Vortec 4.2L engine. There was a lot of editing done to streamline the process and keep this video as short as possible. The water pump was starting to leak from the weephole and you could feel play in the bearings if you removed the serpentine belt and tried to move the fan. I did not go in to the diagnosis, but you also could have used a cooling system pressure test to pinpoint the leak as well.

[@Wolfensptz]

The Camerawork and explanation of each step were very good! But the "music" made it difficult to hear you sometimes, and it really is distracting. Please leave off the music in any future videos. Thanks.

[@gregcotton9908]

Mighty white of ya! Thank ya bub. Squeels driving me up.a wall at this point

[@flyboy2610]

The easy way to get that connector unclipped from the fan shroud is to wait until the fan shroud has been unbolted from the radiator support, then push it towards the engine a bit. Reach into the fan shroud from the front and you will feel the back of the connector. Squeeze the back of the connector and it will come right out of the fan shroud.

[@slaternelson856]

Thanks for the video!

[@kennethbode2017]

just in time. need to change mine!

[@mazyck4238]

Good video

[@--Valek--]

Music is distracting af

[@willfreethemfreethem7671]

I just did it this easy but I had to half desembile to make mystery noise after I put it back together go away!

[@esgarza1486]

Can a bad water pump cause my radiator to get hot I've replaced radiator thermostat temp sensor and my radiator gets real hot within 10 minutes starting thank you.

[@dave2574]

Thank you for the video, but reusing the coolant makes little sense unless it has recently been changed. Makes even less sense with dexcool, as it has been known to erode intake and or head gaskets.

[@BMC_KillSwitch]

How the Fuk did you get the fan and fan clutch and fan shroud out in one piece it took 3 of us laying under on top and over the engine to get that MF’r out and it was all we could possibly do even then to get it out and back in again .

[@joser.2396]

You don’t need to put silicone on the gasket ?

[@quiles351]

Not needed at all

[@peralez2383]

not needed, but wouldn't hurt

[@briangautreaux3072]

I was going to ask the same. If anything I have used it to keep the gasket in place. The pad to use is the green one for cleaning on aluminum. Great video. Thanks for the tutorial.

[@charlescurtis1042]

Dude didn't show most important part.clutch fan remover

[@kevinkollman9162]

Big crescent wrench and big rubber hammer smack towards pass side.

[@danielsuarez5415]

You don't need to remove the hose for the water, wasting time and energy

[@carlbrooks90]

The new delco water pumps are made in china.

[@antisocial3708]

sad to learn

[@charlescurtis1042]

Chevy been doing that for 35 years

[@bogieman101]

You can still get the OEM delco pumps made in Canada with the real factory gasket but it is $80+ instead of $40 for the China delco pump. It just about got me until I read the reviews about the Chinese pumps. Those are called the Delco "professional" series. You have to check every damn thing now a days. Companies will do anything for a dollar....

[@russellwagner6924]

Music over your voice sucks won’t be back

[@mikebolden7771]

We watch these for accurate information. when you say you have changed enough water pumps that you don't need to torque does not help somone who has not changed one since the 70s. look it up and tell us. Also get rid of the music!!!!!! it does more harm than good. also you did not show the trans lines very well.

[@treytrammel70]

wtf man???111 are we changing a water pump or listening to the worlds shittiest band demo tape??