View Full Version : Bad water pump?????

11-28-2000, 05:33 PM
I have a 1998 GMC 2500 4x4. For the past few days or so it has been leaking antifreeze from the water pump area. Do the water pumps on these trucks have a period of time where they leak before they quit working? The truck only has 58,000 miles.

11-28-2000, 05:38 PM
change it before it comes apart and really cost you some $$$
50-85 k is real good for a water pump..

11-28-2000, 08:49 PM
I have a 1995 Chevy.I just had mine changed at 89k miles. It started leaving anti-freeze drops on the driveway. Plus I could smell it. Parts and labor were close to $275. One time my truck sat for about 2 months. For some reason the breather hole, on the bottom of the pump, spit out a "quarter" size puddle of fluid on the garage floor.

12-01-2000, 05:43 PM
I had the water pump changed yesterday. It ended up costing $207. $127 for pump and $75 labor. (for anybodys future reference)

John DiMartino
12-03-2000, 01:36 AM
I think the 96 and newer Vortec water pumps do not last as long as the older ones.Ive done 3 so far,on trucks that werent even 2 yrs old.

12-03-2000, 02:56 AM
From what i was told from a friend (mechanic), he said the newer trucks "98" and up have a change in impeller design which is the cause of the shorter life. As far as the leaks each one has a small weep hole where it drips when the unit is ready to go up.

12-10-2000, 03:48 AM
Guntruck's friend was right about the change in the water pump but it was not the impeller. They went from a 7 ball bearing to a 5 ball. So as the bearing starts to wear it takes the impeller seal out. They also did the same thing with the alternators & you can't swing a stick without hitting a late model GM truck owner who hasn't had to have a new alternator at least once.
GM keeps us pretty busy here at the dealership.