This car is at the dealer for a water pump..

So far this car is going on 15 hours of labor.. I am only going to get
billed for 6 though..

Has anyone heard of this water pump turning into that much of a nighmare?

I know it is on the timing chain, but 15 hours?? CRAZY

Jeff

Jeffrae wrote:

Somebody doesn't know what they are doing. I routinely do
that job in about 3 hrs time. They probably can't figure out
how to set the timing chain tensioner properly (one of the more
common mistakes when doing this job).

Ian

"shiden_kai" <violet_lightening_modified (AT) hotmail (DOT) com> wrote

Well,

The car is still at the Dealership.. They are still having troubles
with the water pump. IF the dealer will not doing anything because it is
taking a long time, do you think GM Will??
I know the car is way pat warrenty, but if they put the pump on the belt
like every other motor, we would be having this problem.

Jeffrae wrote:

I doubt GM will get involved, why should they? If it's as simple
as replacing a leaking water pump on 2.4 Quad engine, then
the responsibility lies with the dealership to have the right tools,
knowledge, good techs...etc.

While I'm not a fan of the method that GM chose to drive
this water pump with.....it's still a simple job "if" you know
what you are doing. It's funny, the next day after I replied
to your post, guess what job ended up in my bay? Yep,
2.4 Quad water pump.

Ian

Typically how long (mileage of vehicles came in for service) does this water
pump last? If one replace to coolant often, does it help in extend its
life?
"shiden_kai" <violet_lightening_modified (AT) hotmail (DOT) com> wrote

Paul wrote:

It's all over the place, but suffice it to say that the majority
of the water pumps that I've replaced have been under the
factory warranty.

I don't think changing the coolant earlier would help much.
I think that the design change of having the pump driven
directly off the timing chain may put increased pressure
on the water pump shaft. The old style Quads didn't have
the same problem, and that engine used a dummy sprocket
and bearing in the front cover and the water pump was
splined to that sprocket. So the bearing in the front cover
took all the load from the timing chain. It made it easier
to replace too, as you didn't have to remove the front timing
cover and chain.

Ian

Paul wrote:
Mine lasted 96,000 Miles..

Thanks Ian,
I may have asked you this before and I think you may have said that the
water pump driver for newer vehicle with 2.4L engine has been redesigned
specifically for this failure. If so, which vehicle year that benefit from
this improvement? Also, the improvement GM made is it better or similar to
old style Quads engine?
When you said bearing, is it balls bearing or sleeve and bushing?

Paul

"shiden_kai" <violet_lightening_modified (AT) hotmail (DOT) com> wrote

Paul wrote:

I don't know of any improvement to the water pump. The only
difference with the new water pumps is that GM now sends along
a small plastic sleeve with foam that you are supposed to attach
around the water pump area where the vent hole is. The purpose
for this item is to soak up coolant that leaks out of the vent hole
so that customers will not see coolant leaking under their
vehicle until the water pump is really pissing out. Yeah for GM's
"fixes". Ridiculous!

Ian

Hi Ian,
my daughter's Grand Am is at a repair shop and they are saying 9 hours to
replace the water pump (and timing chain and I forget what else they'll do
as longas they're in there). I see you do it in about three hours.
How would I go about finding someone who can do it efficiently like you
can?