89 350 water pump problems , need help asap

i got a 89 sierra 3/4 ton 2wd with the tbi 350. i went to vip to buy a new water pump and the one they gave me has a paper in it that says that it is a reverse flow water pump. i think i read somewhere that they started that in 92 , so what im thinking is they gave me the wrong one cuz my truck runs like crap now but its not overheating ( or maybe my gauge dont work right:banghead: ) does anybody know if its normal or reverse ? i need to know cus i need my truck for work everyday and everday i drive it so i dont wanna blow it up

The difference is serpentine vs std belt drive, recheck with the parts house as to what they gave you.

My 90 350 TBI uses a reverse direction water pump (serpentine belt).

//2000CAYukon

My 90 350 TBI uses a reverse direction water pump (serpentine belt).

//2000CAYukon


whats the difference between serpentine and regular , i dont have ac , the belt i have is just a skinny one

Serpentine is a wide belt that runs all the accessories, as mentioned make sure they gave you the right pump. Check the part number with the parts house, if you do not have a serp belt system it takes a std rotation pump. Also make sure the fan clutch is good and the blade was not installed backwards.

Serpentine is a wide belt that runs all the accessories, as mentioned make sure they gave you the right pump. Check the part number with the parts house, if you do not have a serp belt system it takes a std rotation pump. Also make sure the fan clutch is good and the blade was not installed backwards.

ok well i dont have a serpentine belt so they gave me the wrong pump :banghead: , so ive been driving with the worng one for over a week now , so i guess im gunna go back and bitch , i hope they can get me the right one and take the old one back ,, ill be damned if they make me pay for a new one those dumbasses , , thanks

ok well i dont have a serpentine belt so they gave me the wrong pump :banghead: , so ive been driving with the worng one for over a week now , so i guess im gunna go back and bitch , i hope they can get me the right one and take the old one back ,, ill be damned if they make me pay for a new one those dumbasses , , thanks

Are you sure you do not have a serpentine belt? I looked this up on acdelco.com and rockauto.com and a 89 3/4 ton with 350 only listed serpentine replacement belts.

Also, if you had the wrong pump, you would have overheated since the pump would have been turning in the wrong direction.

//2000CAYukon

Are you sure you do not have a serpentine belt? I looked this up on acdelco.com and rockauto.com and a 89 3/4 ton with 350 only listed serpentine replacement belts.

Also, if you had the wrong pump, you would have overheated since the pump would have been turning in the wrong direction.

//2000CAYukon

positive. i dont have ac. i got this little skinny belt . the paper that came with the water pump said it was a reverse motion water pump and that if put on the wrong vehicle it would either not pump at all or it would only pump a little water through. i dont think my temo gauge works very well and i dont drive my truck much everyday and i keep the heat on so i dont really know how to tell if its overheating. when i let it run for a while i squeeze the top hose and dont really feel much coolant going through. the bottomc one is usaly luke warm while the top one is wicked hot. i chedcked my oil for signs of a hg leak thank god that hasnt blown yet. i need to knwo for sure i got the wrong pump before i go into vip and yell at them:banghead:

positive. i dont have ac. i got this little skinny belt . the paper that came with the water pump said it was a reverse motion water pump and that if put on the wrong vehicle it would either not pump at all or it would only pump a little water through. i dont think my temo gauge works very well and i dont drive my truck much everyday and i keep the heat on so i dont really know how to tell if its overheating. when i let it run for a while i squeeze the top hose and dont really feel much coolant going through. the bottomc one is usaly luke warm while the top one is wicked hot. i chedcked my oil for signs of a hg leak thank god that hasnt blown yet. i need to knwo for sure i got the wrong pump before i go into vip and yell at them:banghead:
Your instructions are telling you it is a reverse rotation pump, it's wrong. Ask the parts house if they are paying for the labor!

Your instructions are telling you it is a reverse rotation pump, it's wrong. Ask the parts house if they are paying for the labor!

ok well now im super confused. went and got a new pump , the rightnow i though. so ive got the wrong one off , ive got the old one and now the new one. i took the covers off the back and the blades all face in the same direction, wtf. the only thing different is on the wrong one there is a threaded outlet on the other 2 there isnt. im gunna replace the thermostat also , maybe that will help but idk im so confused:banghead: :banghead: :banghead: :banghead: :banghead: :banghead:

ok well now im super confused. went and got a new pump , the rightnow i though. so ive got the wrong one off , ive got the old one and now the new one. i took the covers off the back and the blades all face in the same direction, wtf. the only thing different is on the wrong one there is a threaded outlet on the other 2 there isnt. im gunna replace the thermostat also , maybe that will help but idk im so confused:banghead: :banghead: :banghead: :banghead: :banghead: :banghead:

jesus christ, now its overheating. now the bottom hose is hot instead of luke warm and the top one is cold and the heater hose is hot also. ahhhhhhhhhhhhh , maybe i have an air bubble in there or something who knows but this truck is pissing me off:banghead: :banghead: :banghead: :disappoin