Question about Pontiac Grand Prix
If the water seems to be coming out of the engine block itself it would be the welch plugs. To actually see them you either need detachable eyes or a flashlight and a small mirror. Welch plugs are brass plugs inserted into holes in the engine block. These holes were put there during manufacturing in order to clear the sand used in the casting process from the water channels. They do tend to rust through and replacing them can be a serious headache due to the diffyculty in accessing these plugs. Basically you would have to strip everything(ancilliary components, inlet, exhaust manifold) off the engine to replace one. It can be removed by hammering a screwdriver through one and wedging it out. Replacement entails using a circular drift to hammer it back in (after the hole has been cleared of rust)
Also bear in mind that if one is rusted through, then the others are not far behind. depending on the engine it could have any number from 4 to 10 of these in the sides of the block alone.
The picture shows a welch plug (circled) on a 26 year old Nissan without aircon, power steering or fuel injection and it is still the only one visible on the engine without removing components.
Posted on Aug 23, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 23, 2016 | Buick Park Avenue Cars & Trucks
Mar 23, 2011 | 1998 Cadillac Catera
Nov 15, 2010 | 1997 Buick Park Avenue
Dec 25, 2009 | 1995 Buick Riviera
Aug 15, 2009 | 1992 Honda Accord
Aug 03, 2009 | 1992 Toyota Camry V6
Jul 01, 2009 | 1999 Buick Park Avenue
Nov 04, 2008 | 1994 Honda Civic Del Sol
108 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: