1994 t100 3vze: Water is leaking from the front (lower) of engine after truck has been driven and warmed to operating temp. AND only after truck has been stopped for 1 to 2 hours. I'm thinking by-pass hose or therostat??? Has anyone had this problem? Can you help? Thank you.

 

best thing to do would probally be get it hooked up to a computer, sounds like it could possibly be the water pump goin bad, as my brothers car just had a similiar sounding problem

 

Thanks - yes I figured it out since I posted original question. I did all the work to remove the water pump BUT (stupid me) didn't replace it, AND it is still leaking, oh well. Great experience. Well I'm off to buy a new one and hopefully do it right this time. Thank you again. Pete

 

Well...since you have all yer parts out...might as well replace the timing belt and idler rollers...

 

GREAT IDEA !!! Thank you

 

did you use RTV sealant with the gasket on the waterpump?

 

Yes but the housing didn't have a groove like the original and I also used the included felt type gasket. It did the job. Don't have a newer vehicle then my 94 t100 and didn't know that the water pump and thermastat were together so I did some extra work but it is worth it.

 

in the process of doing this same job. I have ordered the tensioner and the idler. bought the new belt and spark plugs along with the new waterpump but this was all after I had replaced the radiator and thermostat. The radiator had the obvious 5 inch crack in the top of it though...Mine has 150K on it so this is the first major repair I've done on it besides the recall repair done at dealership.

 

Man, it's awesome how well these trucks hold up with only minor maintenance.

 

yes I agree! Problem I'm having now is I'm terrified of that crankshaft pulley! I have rented the pulley puller but I am seriously nervous about touching that bolt to the crankshaft. I am afraid that it will move the crankshaft and turn the engine. Right now, both cams are at top dead center(miraculously parted in that position). I don't know know about the lower timing marks yet. They are hidden by the dreaded crankshaft pulley/lower timing cover. UGH!