Have leak behind water pump on 94 camaro v6. Looks like some kind of housing or cover behind water pump.i just had intake gasket replaced last year and Ibelieve i have to remove crankshaft pulley.Please help

Not familiar with this specific engine, but possible intake manifold gasket leak?

some bolts go thru the water jacket,could be you need to add cilcone to the ends of the bolts.

You didn't mention the model, year and engine. If this is a V6 or V8 then suspect a leaking intake manifold gasket.

CHECK FOR LEAKING WATER PUMP WEEP HOLE OR GASKET.ALSO CHECK WATER PUMP HOSE FOR LEAKS.IF ALL LOOKS GOOD.YOU COULD HAVE PINHOLE LEAKS IN RADIATOR CORE LEAKING ON FRONT OF ENGINE OR INTAKE MANIFOLD GASKET LEAKING COOLANT.

take it to a mechinc shop and have them do a pressure test

It is your Lower Imtake Manifold gasket (LIM). Late Production Camaros and Firebirds used Dex-Cool coolant which nortoriously caused the LMI to actually disintegrate. The failure of the LIM allows coolant to leak to the exterior of the engine as well as into the interior of the engine eventually getting into your oil. Check your oil for a brown milky color... if you have it immediately drive your car to you favorite repair shop and replace the LIM gasket. The GM 3.1L, 3.4L and 3.8L engines are famous for disintegrated LIM gaskets and a good shop will have replaced 30-50 of these in a year. The LMI is part of the reason the public dissed Pontiac and eventually led to its demise (not to mention bad management at GM). Find a shop familiar with the LIM problem and it shouldn't cost more than $500 to replace (or less). If you have any mechanical skill you can replace it yourself... the gasket kit costs about $35 at NAPA AutoParts and it takes a whole Saturday if it's your first time. I just finished replacing the LMI on my wife's '94 Firebird.

3.4 liter, you may have a bad water pump or at worst you have a bad intake manifold gasket which is a common failure to the 3.4 liter V6 engines. Start with the simple, flush out the cooling system and replace the thermostat. Inspect any signs of possible intake gasket failure and head gasket failure and replace. After that has been inspected, move on to a possible weak water pump and will need to be replaced. Good luck and hope this helps.

That is in the general area of the water pump and the housing has a drain hole at the lowest point so when the seals fail, water can't contaminate other items.
Rebuilt pumps are nearly always reliable since they really don't have much to fail in them besides bearings and rubber seals and are much less expensive than new.

i believe this part you are referring to is the intake manifold. it seems to be a big problem with the older ford mustangs. make sure before you spend the big bucks on it that it's not just the water pump gasket.