Pro 1200 se ???

#1
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so I ran it hard for four hours straight it was spiking well over 250-260 if I let it sit to long.

I noticed a little coolant under the truck

It hasn’t leaked in the last week!

Got a lube oil filter and the jiffy lube guy said I had a water pump leak and should take it to the dealership cause it’s still under warranty!

I’m also getting a slight chirp!

I think the chirp is the belt

And I’m worried my Chevy dealer may want to try and keep my truck and the busy season just hit!

I guess I’m wondering could it have back flowed coolant out the reserve tank since it hasn’t leaked since?

Are these setups bad on engine water pumps?

I know I need to take it to the dealership and let them know it’s something that can’t sit around for two or three days!
 
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#4
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Mine burned up a fuel pump but it's a known Chevy issue and GM sent a letter stating they extended the warranty to 10 years so everything was covered.

Never had a problem with overheating or the water pump.
 
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Yeah I'm pretty good at changing that serpentine belt. Like Marty I change out that belt tensioner once a year and a couple load bearing idler pulleys . Watch that mark on the belt tensioner it should be right in the middle mark when it's a new belt. Starts chirping time to look closer at why.
 
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@Nomad74

We’re you saying these setups were hard on fuel pumps or engine water pumps????
Fuel pumps. They get hot if the tank isn't full of fuel. It needs that fuel bath to stay cool. I don't know if it's still an issue anymore but I heard it was when the first hit the streets.
 
#11
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When I got my WM home it started getting a chirp. Mechanic said it was a leak in the water pump hitting the belt. I never saw a leak but did notice I had to add a little coolant. I guess it didn't leak enough to hit the ground.

I should probably cheack the coolant thinking about it.
 
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#13
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I just drove ours next door to the mechanic.
I'm great at that! :winky:

:redface: :lol:
Beat me to it


63 year old guy in town was working under his car last fall on his property


Car fell on him and he died a few hours later


I have this rule of thumb... if it doesn't need gas, washer fluid , a directional bulb or wiper blades the only tool I'm using is my cell phone to schedule a service appt.
 
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It's good to understand how things work and how to diagnose little problems before they become big ones. For me, the water pump was a little thing. I don't want my otherwise capable mechanic shop messing with the front end of the truckmount drive system. I know Justin or I will put it back right. This repair didn't require getting under the van.

Fred is right, getting under a heavy van with jacks or stands can be a great way to get killed.
 
#16
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It's good to understand how things work and how to diagnose little problems before they become big ones. For me, the water pump was a little thing. I don't want my otherwise capable mechanic shop messing with the front end of the truckmount drive system. I know Justin or I will put it back right. This repair didn't require getting under the van.

Fred is right, getting under a heavy van with jacks or stands can be a great way to get killed.
I can tell you all about my chemical injection now that I took it apart. :)
 
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Well the dealer said I can gave it back tomorrow by 9 am then I got run to 4-5 stops

My other truck has 4 solid stops to!

From zero to hero in a week


I love this business
 
#20
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So I got it back! Got to first job and check engine light goes on!

I look and sure enough they left a small hose that plugs into the back of the air filter hanging and didn’t tighten up the clamp on the air filter either!

Light went off a few jobs later!

Why are dudes who supposedly fixing stuff such knuckleheads?
 
#23
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So I got it back! Got to first job and check engine light goes on!

I look and sure enough they left a small hose that plugs into the back of the air filter hanging and didn’t tighten up the clamp on the air filter either!

Light went off a few jobs later!

Why are dudes who supposedly fixing stuff such knuckleheads?
Did my dealership and mechanics take over your location???? :icon_neutral:
 
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Well well we’ve been seeing numbers steady at 180 atw on medium 1200 rpm blower spinning 3000 rpms no need for high!

I know on high mine runs at 1400rpm,
Ashley M modified his at set it to 1500!

I’m tempted Rick A said go for it!

New lid gaskets really helped to!
 
#26
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2EDAFC39-31E7-4754-A93C-91DAF0A63636.jpeg 1446A9A9-BEA3-44E5-99B6-D22A5FD0C4A6.jpeg

So I’ve had some serious water pressure issue but no cavitation or pump fluctuation

I opened the out bound filter clean as a whistle!

Opened the check valve and scale baby scale

So I called a few people and a dude from Sapphire Ron gave me the most useful advice!

My water mod was empty so I pulled the draw hose off added an extender into a bucket and put Prochem descaler in the bucket then let it cycle for 10 minutes.

The water pressure was back to normal.


I did a couple rat nasties with the lower pressurer today and they took way to long!

Looking forward to the flow.
 

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