1991 Buick Park Avenue (standard). 3800 V6.
Repair= took off old water pump and scraped off old gasket. Put on new pump and gasket.

Question = I have a 1991 park ave. I only paid $800 for it and put a ton into it; brakes and lines,
power steering pump, alternator, coil pack, ignition module, tires. Then my water pump went out. My
boyfriend and I took the old one off which looked original to the car, scraped off the old gasket and
cleaned it really well.

We put on the new pump by following the directions that came with it. We put the belt and motor
mounts back and put it all back together. But its still dripping antifreeze. Then someone told me we
were supposed to use a gasket sealer around the new gasket. I really dont want to have to take it all
back apart because I'm getting a new car in a few weeks. Is there anything i can seal it with from the
outside?

Answer:
You should have not needed to use sealer since the water pump has an actual gasket. What is
probably leaking, if it's coming from the water pump area, is coolant from the bolt holes. Some of the
bolts need sealer on them as they pass into water jackets. You could try removing one bolt at a time
and put thread sealer on it and reinstall.

Let sit for a while and see if it still leaks. If it does, you either ripped the water pump gasket during the
install, or have a leak from some other spot such as the intake gasket, coolant bypass, etc.


1999 Buick Park Avenue Ultra.
Low coolant level low on message center.
New low coolant sensor on the front of radiator. There are no leaks in the coolant system reservoir is fill
and it has a new low coolant sensor. But on the message center keeps coming up check coolant low
coolant level. Am I missing something or I there another low level sensor in the system somewhere??
Thank you.

Answer:
There is only 1 sensor for the low coolant. As long as it is not low and there are no air pockets in the
system, you may have a module problem. These and a few other years had a module between the
sensor and the message center.


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Buick Park Avenue Water Pump Problems