90 l-98 cooling problem
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Ok, some down home head scratching, and
start the car, open the hood, walk over to the right side of the car, lean over and rev the engine, and look down at your lower water hose.
Is it collapsing? If there is no spring inside of it, it will.
That will starve the engine of any water on and off again and the temp will just build till it's out of the ball park.
start the car, open the hood, walk over to the right side of the car, lean over and rev the engine, and look down at your lower water hose.
Is it collapsing? If there is no spring inside of it, it will.
That will starve the engine of any water on and off again and the temp will just build till it's out of the ball park.
Thread Starter
Instructor
Joined: Dec 2007
Posts: 111
Likes: 0
From: Muscatine Iowa
Ok, some down home head scratching, and
start the car, open the hood, walk over to the right side of the car, lean over and rev the engine, and look down at your lower water hose.
Is it collapsing? If there is no spring inside of it, it will.
That will starve the engine of any water on and off again and the temp will just build till it's out of the ball park.
start the car, open the hood, walk over to the right side of the car, lean over and rev the engine, and look down at your lower water hose.
Is it collapsing? If there is no spring inside of it, it will.
That will starve the engine of any water on and off again and the temp will just build till it's out of the ball park.
Safety Car
Joined: Oct 2008
Posts: 4,689
Likes: 4
From: Yucaipa CA
this might sound stupid, but is there any chance the new water pump is a standard rotation? I once had one put on my car by mistake because the car was a 82 with a 90 serpentine system so the shop didnt think twice of it and ordered the pump as a 82. Anyways long story short that car would get hot real quik not so much idling but man 1/2 a mile and its temp just skyrocketed.
Just a thought .... probably not your problem but thought I would mention what happens when a standard rotation pump is on a serpentine drive. But on the same line even if the pump was new/rebuilt could it not have had the wrong impellor installed?
the thing that finally caught my eye was my original pump had thread in bolts and the pump they put on had studs with nuts for the waterpump pulley.
Just a thought .... probably not your problem but thought I would mention what happens when a standard rotation pump is on a serpentine drive. But on the same line even if the pump was new/rebuilt could it not have had the wrong impellor installed?
the thing that finally caught my eye was my original pump had thread in bolts and the pump they put on had studs with nuts for the waterpump pulley.
Thread Starter
Instructor
Joined: Dec 2007
Posts: 111
Likes: 0
From: Muscatine Iowa
this might sound stupid, but is there any chance the new water pump is a standard rotation? I once had one put on my car by mistake because the car was a 82 with a 90 serpentine system so the shop didnt think twice of it and ordered the pump as a 82. Anyways long story short that car would get hot real quik not so much idling but man 1/2 a mile and its temp just skyrocketed.
Just a thought .... probably not your problem but thought I would mention what happens when a standard rotation pump is on a serpentine drive. But on the same line even if the pump was new/rebuilt could it not have had the wrong impellor installed?
the thing that finally caught my eye was my original pump had thread in bolts and the pump they put on had studs with nuts for the waterpump pulley.
Just a thought .... probably not your problem but thought I would mention what happens when a standard rotation pump is on a serpentine drive. But on the same line even if the pump was new/rebuilt could it not have had the wrong impellor installed?
the thing that finally caught my eye was my original pump had thread in bolts and the pump they put on had studs with nuts for the waterpump pulley.
Thread Starter
Instructor
Joined: Dec 2007
Posts: 111
Likes: 0
From: Muscatine Iowa
I ended up purchasing the kit that turns that fans on at 200 degrees. The fans actually run the majority of the time now. The needle consistently runs in the middle of the gauge, whether I am idling or driving down the road. I am not crazy about the fans running all of the time but I am happy that the car no longer overheats.
