Overheating

10

Asked by Toetoy1 Oct 07, 2018 at 11:18 AM about the 1995 Buick Century Special Wagon FWD

Question type: Maintenance & Repair

I have a 1995 Buick Century station wagon with a
3.1 V6 that is constantlyOverheating . I replaced
the radiator the fuel pump all the hoses thermostat
for the timing cover off replace the timing chain
and the timing gear cover itself I flush the system
pressure tested the system and still also have
replaced all the hoses still have a problem with
overheating. Pressure test is holding pressure
everything else is new . I’m baffled I cannot figure
out why am still having an overheating problem I
appreciate any help you could give me

5 Answers

103,105

When you say "fuel pump" did you mean water pump?

1 people found this helpful.
103,105

From your description, it seems you've replaced every component of a cooling system (I'm assuming you meant water pump and not fuel pump). Are you 100% certain all the air is out of the system? Park it facing uphill and burp it one or more times to be sure. If all air is purged then check operation of cooling fans, make sure they are coming on (if electric). Make sure all belts are tight, although I'm sure after having it all apart that is not going to be an issue. Then check if you have a blown head gasket over pressurizing system. "Block Tester" can check for presence of combustion gases leaking into coolant. If so a compression test would be in order.

2 people found this helpful.
10

Yes I did mean water pump. Thanks will check compression. Wita a blown head gasket wouldn’t water be showing up in oil

1 people found this helpful.
10,490

Is it actually running hot or are you just getting a warning on the insturment panel? You could just have a faulty water temp sending unit. Are you loosing coolant? If you are that is a clue to a head gasket

10

Sending unit was also changed due to corrosion and yes I am loosing coolant so I guess I’ll be replacing the head gaskets. I appreciate all your help You gave me the answer I had thought about many times and was expecting. and really didn’t want to hear. Thanks again

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