Question about Pontiac Sunfire
Check the quality of your oil. Coolant maybe leaking internally due to worn out head gasket.
Posted on Oct 29, 2012
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Posted on Jan 02, 2017
in order to determine the cause you need the pump pressure tested, but yes it is likely the pump vanes are bad.
Posted on Sep 18, 2009
Testimonial: "I'll try testing the pressure. Thanks for the info. I appreciate the help."
You should look under the car after it sits a while and see if there is antifreeze on the ground. If so try to see where it could be leaking under the hood directly over the puddle. You could have a leaking water pump. If so there would be dampness under the right side of engine compartment. Also check the radiator hoses at front of car.
Posted on Aug 10, 2011
they make a uv dye you can put in there and run it till it leaks and you put on the glasses and shine the light that comes in the kit arund and where it is leaking will glow but it sounds like the leaks are just the rad hoses or heater core hoses
Posted on Aug 02, 2008
Just a heads up, $10 bucks will buy you a seal kit for the P.S. pump. I topped mine off for a couple months, then the oring on the high pressure line (from pump, front center) blew and dumped the reservoir in a matter of miles.
The line can be a stinker to get off, recommend driving the car for a few minutes to heat up the pump a little. Don't forget the 20MM wrench.
Posted on May 14, 2009
The MK3 VW's are prone to failure of the "coolant flange", which is located to the right of the valve cover, and will have 4-5 hoses and or sensors sprouting from it.
I'd be willing to bet that this is the source of your leak, not the cam pulley.
The part is inexpensive.
Posted on Mar 15, 2010
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