Could my water pump be bad?
03-09-2010, 07:34 PM
#1
Member
Thread Starter
Join Date: Dec 2007
Posts: 151
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 z28 L98 Spec
Engine: 5.7 350 TPI 245\345
Transmission: 700 R4
Axle/Gears: 3.23
Could my water pump be bad?
Im having and over heating issue, first my fan isnt running anymore i need to solve that, but I replaced my thermostat as well and when it hits 195 it dies down about 5 degree's telling me that the valve opened, but then it shoots up again and doesnt go back down. This is leading me to believe that the water pump isnt circulating the cooler water. Could this be the case? Any suggestions?
03-09-2010, 07:47 PM
#2
Supreme Member
Re: Could my water pump be bad?
possible,but very unlikely-the impellers are pretty
secure on chevy waterpumps,so as long as the pulley
is turning it should be pumping.
secure on chevy waterpumps,so as long as the pulley
is turning it should be pumping.
03-09-2010, 10:02 PM
#3
Member
Thread Starter
Join Date: Dec 2007
Posts: 151
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 z28 L98 Spec
Engine: 5.7 350 TPI 245\345
Transmission: 700 R4
Axle/Gears: 3.23
Re: Could my water pump be bad?
I feel the same way never had one fail before, but I dont know what else could be causing it to over heat so bad.
03-09-2010, 10:38 PM
#4
Senior Member
Join Date: Feb 2010
Location: San Diego, California
Posts: 1,125
Likes: 0
Received 0 Likes
on
0 Posts
Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
Transmission: 700R4 Mega Raptor Level 4
Axle/Gears: 2.73
Re: Could my water pump be bad?
your Radiator could be plugged... what you could do is siphon enough coolant from the radiator, fire up the car and allowing the thermostat to open up, once the thermostat opens up you should see the coolant flow, if you don't see the coolant flow, then you radiator could be plugged...
03-10-2010, 11:04 PM
#5
Member
Thread Starter
Join Date: Dec 2007
Posts: 151
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 z28 L98 Spec
Engine: 5.7 350 TPI 245\345
Transmission: 700 R4
Axle/Gears: 3.23
Re: Could my water pump be bad?
I thought of that too, and tomorrow I am planning on testing the radiator, I finally got the car running properly now just need to fix the over heating issue and shes set, but my gauges are still messed up to 
Thread
Thread Starter
Forum
Replies
Last Post
evilstuie
Tech / General Engine
22
01-09-2020 08:29 PM
evilstuie
Engine/Drivetrain/Suspension Wanted
15
04-14-2016 08:52 PM
