92' pick-up leak.

i have been noticeing some water in the base on my single cab pick-up. The carpet was actually pretty wet. Now ive done some searching, sealed the front and back plugs. However im wondering if my heater block is clogged and water is channeling in through there. The wettest spot is passenger side front.

any ideas guys thanks.

Almost definitely is your heater core.

Is it fresh water or coolant? Do you have coolant in your cooling system? Check around your fresh air intake for the cab, it maybe clogged with debri and not draining. Do you have air conditioning? A/Cs cause a lot of condensation and if the drain tube is clogged, it will leak into the cab. Check to make sure your windshield seal is not leaking.

Where do you come from? Here in Quebec, unfortunatelly, many times it happens it's because the rust on the windshield flange... We use salt to de-ice the roads... It cause bad rust on the cars:banghead:

Yeah had that problem on my 83 p/u. Every time it rained hard there'd be a puddle on the pass side floor. Leak at bottom of windshield was the cause.